One evening Betty was walking to the dorm from the gym when she was stopped by two men who demanded her money. Since she was a good athlete, Betty decided to make a run for it. Pretending to open her purse, she suddenly turned and dashed off. Although pursued, Betty outran her assailants. During this incident, which part of Betty's nervous system was most directly responsible for her successful escape?
Answer:
The sympathetic nervous system
Explanation:
Betty's escape is best described as a "fight or flight" response. This is caused by the secretion of adrenaline.Adrenaline is secreted by the adrenal glands in response to a stimulus which is usually a stressor. This causes increased sweating, heavier breathing and providing the muscles with the oxygen they require for "flight"Adrenaline is a hormone which is regulated by the sympathetic nervous system.Betty's successful escape was facilitated by the activation of the sympathetic division of the autonomic nervous system, which triggers the fight-or-flight response necessary for such quick, survival-oriented actions.
During the incident where Betty outran her assailants, the part of her nervous system that was most directly responsible for her successful escape was the sympathetic division of the autonomic nervous system. This system is key to initiating the fight-or-flight response when faced with a perceived threat. The sympathetic nervous system rapidly activates to prepare the body to either confront or escape danger by increasing heart rate, dilating bronchi, dilating pupils, activating sweat glands, and directing blood flow to essential muscles for immediate action.
When Dr. Emory looks at slides of blood samples, he sees a rich and diverse world of cellular life instead of small dots on a slide. In using his years of experience looking at slides, what is Dr. Emory is using?
Answer: He is using Top Down Processing
Explanation:
Top Down Processing is related to how our brains use information that was already in them.
A cloned mammal is made by removing the DNA from the unfertilized egg of an egg donor, replacing it with DNA from a cell of a mature animal, and then implanting that cell into the uterus of a surrogate mother. The cell then divides and behaves as if it were a regular embryo
Answer: there is no question. Where is the question?
Explanation:
Just in case. I guess the question is:
Of whom is the baby a clone? And the answer is of the DNA donor.
When the respiratory diaphragm contracts, it flattens, lowering the floor of the thoracic cavity. At the same time, the intercostal muscles pull the ribs up and out. The active forces of the muscle groups cause a(n) __________ (increase/decrease) in thoracic volume. Given the relationship between pressure and volume, this would cause pressure within the lungs to __________ (increase/decrease)
Answer:
1. Increase
2. Decrease
Explanation:
During inspiration, diaphragm contracts and lowers down. There is a simultaneous contraction of external intercostal muscles and movement of rib-cage upward and outward. All these events lead to an increase in the volume of the thoracic cavity. Increase in volume of the thoracic cavity results in expansion of lungs and lowering down the air pressure within alveoli of lungs.
The contraction of the respiratory diaphragm and intercostal muscles during inhalation increases thoracic volume and decreases pressure in the lungs, causing air to enter.
Explanation:When the respiratory diaphragm contracts, it flattens, leading to an increase in thoracic volume. Concurrently, the intercostal muscles pull the ribs up and out. Owing to Boyle's Law, which posits an inverse relationship between pressure and volume, this increase in thoracic volume leads to a decrease in pressure within the lungs as compared to the external atmosphere. As a result, air is drawn into the lungs.
According to the body composition reference standards for adults, a fat level above ________ percent for men and ________ percent for women classifies them as "overfat"?
Answer:
12-18 percent for men and 16-25 percent for women.
Explanation:
If there is an excessive amount of fat in their body which can lead to the impairment in the health of the person.If there is excess fat in the body then the person is said to be over-fat.The optimum percentage for men is 12-18 percent whereas the optimum percentage for women is 16-25 percent.If the percentage increases more than this then it is said to be over-fat. What type of muscle is responsible for contractions of the digestive tract and arteries?
a. smooth muscle
b. skeletal muscle
c. striated muscle
d. voluntary muscle
e. cardiac muscle
Cardiac muscle is the only muscle composed of _____ fibers.
a. branched
b. unstriated
c. unbranched and cylindrical
d. spindle shaped
e. striated
_____ muscle is attached to bones._____
a. Smooth
b. Involuntary
c. Cardiac
d. Branched
e. Skeletal
Answer:
first Q answer is
smooth muscle
second Q answer is
striated
third Q answer is
skeletal
Smooth muscle is responsible for contractions of the digestive tract and arteries. Cardiac muscle, which has branched fibers, is responsible for heart contractions. Skeletal muscle, attached to bones, facilitates voluntary movements.
Explanation:The type of muscle responsible for contractions of the digestive tract and arteries is smooth muscle. Cardiac muscle is unique in that it is composed of branched fibers. Whereas, the muscle type that is attached to bones is known as skeletal muscle.
Smooth muscle tissue contraction is responsible for involuntary movements in the internal organs such as the digestive system, arteries, and other hollow organs, while cardiac muscle is responsible for the contraction of the heart and is marked by striated, branched fibers. On the other hand, skeletal muscles are also known as voluntary muscles because they are under our conscious control and are attached to the skeleton, enabling bodily movements.
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Brian feels that no matter what he does, he will not be good at math because he was born without strong math skills. Brian is demonstrating _____, which MOST likely will reduce his ability to learn.
Answer:
Brian feels that no matter what he does, he will not be good at math because he was born without strong math skills. Brian is demonstrating the entity theory of intelligence, which MOST likely will reduce his ability to learn.
Explanation:
The entity theory of intelligence refers to an individual's belief that intelligence and ability are fixed traits. For entity theorists, if perceived ability to perform a task is high, the perceived likelyhood for mastery is also high.
Brian is demonstrating a fixed mindset, which is most likely will reduce his ability to learn. The correct term to fill in the blank is "a fixed mindset."
Brian's belief that he cannot improve his math skills because he was born without strong math skills is indicative of a fixed mindset.
This mindset is based on the belief that one's abilities are static and cannot be changed through effort or learning. In contrast, a growth mindset is the belief that abilities can be developed through dedication and hard work. Research in educational psychology, particularly the work of Carol Dweck, has shown that a fixed mindset can indeed reduce a person's ability to learn. When individuals believe their intelligence or talents are fixed traits, they may avoid challenges, give up easily when faced with obstacles, see effort as fruitless, ignore useful feedback, and feel threatened by the success of others. As a result, they may not reach their full potential and may struggle more in learning environments. On the other hand, individuals with a growth mindset are more likely to embrace challenges, persist in the face of setbacks, see effort as a path to mastery, learn from criticism, and find lessons and inspiration in the success of others. This approach fosters a love of learning and a resilience that is essential for great accomplishment. To improve his math skills, Brian would benefit from adopting a growth mindset. This would involve recognizing that math abilities are not innate but can be developed over time with practice and study.By setting goals, seeking help when needed, and persisting through difficulties, Brian can enhance his mathematical understanding and proficiency.
All of the enzymes of gluconeogenesis may be found in the cytosol EXCEPT ____ which is only found in the mitochondria. a. PEP carboxykinase b. pyruvate carboxylase c. fructose-1,6-bisphosphatase d. glucose-6-phosphatase e. all are only in cytosol
Answer:
The correct option is B, PYRUVATE CARBOXYLASE.
Explanation:
Gluconeogenesis is the process by which the body produce glucose from non-glucose precursors in the body. The gluconeogenesis pathway usually become active when there is shortage of glucose in the body. The enzymes that carry out the process of gluconeogenesis can be found mostly in the cytosol; only one of them is present in the mitochondria. The gluconeogenesis enzyme that is found in the mitochondria is PRUVATE CARBOXYLASE.
You are a forensic scientist. For today, your supervisor tells you to perform a confirmatory test for semen on Item D. You recover Item D from the evidence locker. Item D is a vaginal swab from a sexual assault kit. An AP Spot Test has already been performed on the swab, with a positive result. You cut off a small portion of the swab. You agitate the swab in a small tube with water. You smear this water onto a microscope slide and stain the slide with red dye and green dye. You look for sperm cells under a microscope, but do not observe any sperm cells. Explain.
Answer:
Ok
Explanation:
How could the botanist best determine whether the genotype of the green-pod plant is homozygous or heterozygous?
Answer:
With a test cross.
Explanation:
To determine whether the genotype of a plant is homozygous or heterozygous it can be applied a test cross, which consists in crossing an individual of an unknown genotype with an individual of a known genotype.
The botanist could determine the genotype of the green-pod plant by performing a test cross with a homozygous recessive plant. If all the offspring have green pods, it is homozygous. If some have yellow pods, it is heterozygous.
Explanation:The botanist could best determine whether the genotype of the green-pod plant is homozygous or heterozygous by performing a test cross. To do this, the botanist would cross the green-pod plant with a homozygous recessive yellow-pod plant. If all the offspring have green pods, then the green-pod plant is homozygous. However, if some of the offspring have yellow pods, then the green-pod plant is heterozygous.
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What is a characteristic of annelids? smooth bodies radial symmetry armlike tentacles segmented bodies
Answer:
The correct answer is option - segmented bodies.
Explanation:
Annelids are large phylum known as the segmented worms or the ringed worms. The member of these phyla are earthworms and leaches. These are invertebrate animals with bilateral symmetry.
The segmented body is the distinguished character of the members of this phylum. These segments are joined together like rings chain in the body of annelids.
Thus, the correct answer is option - segmented bodies.
In genetic engineering, genes are isolated and inserted into other DNA, producing recombinant DNA. To do this, both the source and the vector DNA are first cut into fragments by ____________ .
They need to be cut or cleaved by restriction enzymes called endonucleases in a way that both source and vector are left with complementary DNA strands for ligation using DNA ligase enzymes
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable membrane. The first action potential is usually generated at the initial segment of the neuron’s axon. This activity will test your understanding of the sequence of events that occur at the membrane of the initial segment of the axon during generation of an action potential.
Answer:
The neurons interact with each other at synapse through action potential generated in response to the stimulus. At the resting phase, all the ion channels remain closed and the cell maintains a high amount of Na⁺ ions outside the cell and a high amount of K⁺ ions inside the cell. This difference maintains the membrane potential at -70mv.
When a stimulus activates a cell receptor, it causes the opening of the sodium channels in response to either mechanical stimulus or neurotransmitter released due to stimulus. The opening of the sodium channels leads to the influx of Na⁺ ions which changes the potential from -70 mv to more positive value. When this change in membrane potential reaches - 55 mv it leads to the opening of the voltage-gated channels which causes an influx of Na⁺ ions. This more influx of Na⁺ ions leads to depolarization when the membrane reaches above the threshold and the action potential is generated in the neuron.
information on a animal grooming career?
Answer: just do it map
Explanation : u got this ROCKSTAR !!!!!!
Final answer:
A career in animal grooming involves tasks like bathing and styling pets, understanding different breeds, and safely handling animals. Online research and direct interaction with professionals offer insights into the grooming industry. Training programs and certifications can provide necessary skills and open career opportunities.
Explanation:
Career Path in Animal Grooming:
Considering a career in animal grooming requires understanding the responsibilities, skills, and qualifications needed to be successful. One way to gather information is through online research, which can provide an overview of the industry, average salaries, working conditions, and necessary certifications. Yet, to truly grasp what a career in animal grooming entails, it's beneficial to connect directly with professionals in the field. Speaking with practicing groomers, visiting salons, and potentially shadowing an experienced groomer can provide invaluable insights into the daily work and whether this career aligns with your interests. By engaging with the community and building a network, you also open doors for mentorship and employment opportunities.
To dive deeper, you might consider attending industry-specific conferences, taking part in workshops, and joining professional organizations that offer certifications in grooming. The actual job involves tasks like bathing, trimming, and styling pets, as well as understanding the needs of different breeds and how to handle animals safely and effectively. Communication skills are vital as well, since interacting with pet owners is an integral part of the job. In many regions, becoming a groomer may involve completing a grooming training program or apprenticeship, which equips you with both the practical skills and knowledge needed to thrive.
color blindness is caused by an x-linked recessive gene. a color blind man and a woman with normal vision whose father was color blind have a son. the probability that their son is color blind is?
PLEASE HELP ME WITH THIS!! I'M STUCK!! PLEASE HELP ME WITH THIS!! I'M STUCK!!
Imagine that a new species is identified and the transmission of a trait for a horn is being studied. The presence of a horn is dominant and represented as H. The lack of a horn is recessive and represented as h. What genotype and phenotype probabilities would exist for a cross between a horned organism (HH) and a horned organism (Hh)?
Explanation:
When you make the cross. You get
HH HH Hh Hh.
So the genotypic ratio - 2:2 which is also 1:1.
The phenotypic ratio - 4. Since Hh and HH are horned organisms. So they only differ in their genotypic make up.
The cross between a homozygous dominant (HH) and a heterozygous (Hh) horned organism results in offspring with a 3:1 genotype ratio of HH to Hh but a 100% horned phenotype.
Understanding the transmission of traits requires knowledge of genetics. In the given cross between a homozygous dominant (HH) horned organism and a heterozygous (Hh) horned organism, we can predict the genotype and phenotype probabilities of their offspring.
Steps for Calculating Probabilities:
List the possible gametes each parent can contribute. The HH parent can only contribute H gametes, while the Hh parent can contribute both H and h gametes.
Construct a Punnett square to determine possible offspring genotypes. The combinations can be HH and Hh.
Identify genotype and phenotype ratios. The HH genotype will display as horned, and so will the Hh genotype.
As a result, we can expect a 3:1 ratio of HH to Hh genotypes in the offspring. However, since both genotypes exhibit horns, we will see a 100% horned phenotype among the offspring. It's important to note that test crosses are typically used to determine genotypes of dominant expressing individuals when crossed with a homozygous recessive individual, which is not the case in this scenario.
Cns nerve fibers regenerate because of the actions of schwann cells. True or False
Answer:
True
Explanation:
Nerve fibers can regenerate because of the actions of schwann cells.
Kisspeptin is a protein in humans that has an important role in initiating secretion of the releasing factor gonadotropin-releasing hormone (GnRH). Endocrinologists are finding that the protein kisspeptin and its receptor are central to sexual maturation at puberty. Neurons that release kisspeptin carry estrogen receptors. If this is a negative feedback system, high levels of estrogen would be expected to:
Answer:
.......
Explanation:
Who carried out a series of experiments on frogs in the 1780s?
Answer:
Luigi Galvani I believe???
Explanation:
During naturalistic observation research, you only focused on information that supported your hypothesis, later research proved that your hypothesis was incorrect. What type of bias did you exhibit?
Answer:
Confirmation bias.
Explanation:
Confirmation bias may be defined as a type of cognitive bias in which the hypothesis is confirmed by the over weigh evidence. The under weigh evidence are rejected in this confirmation bias.
The confirmation bias mainly focuses on the the observation that can support the hypothesis. Later, the research can prove to be incorrect based on the hypothesis in the confirmation bias.
Thus, the answer is confirmation bias.
A woman who is breastfeeding is not able to eat enough food for two weeks because of a lack of money. What effect will it have on her breast milk? The quantity of milk will decrease but it will still be nutritionally adequate. She will stop making breast milk until she gets adequate food again. There will not be any effect because the body will continue to produce enough. The breast milk will be too concentrated in nutrients for the baby. She will only be able to express milk from one breast.
Answer:
There will not be any effect because the body will continue to produce enough.
Explanation:
Producing breast milk to satisfy a starving newborn is an arduous and energy-intensive task - about 500 calories a day. Therefore, it is important that moms a little more than normal. If the mother eats little, her body will still produce good quality milk, but she will run out of energy. This can also slow the recovery of your body after childbirth.
What determines milk production is how often the baby breastfeeds or how much more the mother empties her breasts. That is, the more the baby suckles, the more milk the mother will have. This milk will always be the amount of nutrients a baby needs, regardless of whether or not the mother has eaten. But if the mother does not eat, she may have health problems.
If a breastfeeding mother isn't able to eat enough food, the quantity of her breast milk may decrease slightly. However, her body will typically prioritize the nutrition of her breast milk to ensure the baby receives what it needs. Over time, however, the mother's health and potentially the nutritional quality of the milk can be affected.
Explanation:
In conditions of nutritional shortage, a woman's body will prioritize the production of breast milk to ensure the baby receives necessary nutrients. The quantity of milk may slightly decrease, but the body makes significant efforts to maintain its nutritional quality. However, prolonged periods of inadequate nutrition might impact the overall milk quality and the availability of nutrients for the lactating mother.
Lactation and NutritionLactation is the process by which milk is synthesized and secreted from the mammary glands in response to an infant's demand. During breastfeeding, hormones such as prolactin and oxytocin, along with growth hormone, cortisol, parathyroid hormone, and insulin, are active. These hormones facilitate the transport of maternal amino acids, fatty acids, glucose, and calcium to breast milk. Even with a decreased food intake, a lactating mother's body will strive to provide adequate nutrition for the baby by using stored fat reserves.
Changes in Milk CompositionThe initial breast milk known as colostrum is thick and yellowish, high in proteins but contains less fat and glucose. As the lactation continues, mature milk is produced with different composition. It's important to note3hat the composition of breast milk can also slightly change based on the mother's diet and nutritional status.
While the mother's health may be at risk due to inadequate nutrition, the body prioritizes milk production to ensure infant health. However, over time, malnutrition can affect both the mother's health and potentially the nutritional quality of the breast milk.
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Explain how the alleles were passed from parents to offspring.
Answer:
The offspring inherit one allele from parent. Sometimes an organism inherits two dominant allele or two recessive allele for a trait.
The organism represent the traits carried by the allele. Say: If the organism has two allele for curly hair then the hair of the organism will be curly.
The traits are dependent on the type of allele which is being carried whether it is a dominant allele or recessive allele.
Urinary tract infections are commonly caused by Staphylococcus saprophyticus and Escherichia coli, less commonly caused by Proteus mirabilis. You have a mixed culture of these pathogens, which you inoculate onto both MacConkey agar and nutrient agar, and then you incubate the plates at optimal growth conditions. On the MacConkey agar, E. coli appears pink, P. mirabilis appears colorless, and S. saprophyticus does not grow. All three microorganisms appear cream on the nutrient agar plate. What is the best explanation for this data?
Answer:
It tells that Macconkey agar is both selective as well as differential media.
Explanation:
Macconkey media can differentiate both particular species as well as group of closely related species too, which makes it both differential as in case of growth of both E.coli & P.mirabillis. And colored growth of E.coli shows that it is a gram negative and could ferment lactose.
Which of the following is the correct sequence of development from zygote to embryo?
cleavage, gastrula, morula, blastocyst
blastocyst, cleavage, gastrula, morula
cleavage, blastocyst, morula, gastrula
cleavage, morula, blastocyst, gastrula
Answer:
Cleavage, morula, blastocyst, gastrula
Explanation:
The zygote is formed after fertilization of sperm and ovum. Then the zygote undergoes a repeated cell division to form a number of cells. These tiny cells formed by mitotic cell division but present inside the zygote. It forms 2 cells then 2 cells, then 8 cells and so on. After forming the number of cells the zygote has a number of tiny cells. This stage is called morula and the tiny cells are called morulae. Then these cells migrate towards the periphery of the morula and creating a central space called blastocoel. This hollow ball structure is known as the blastocyst. After this blastocyst stage, the cells migrate to form 3 layers such as endoderm, mesoderm, ectoderm. From this layer different organs are formed. This 3 layered stage is known as gastrula. Thus the zygote development starts from cleavage, morula, blastula, and gastrula.
The correct developmental order from a zygote to an embryo is cleavage, morula, blastocyst, and gastrula, which involves cell division and restructuring into layers.
Explanation:The correct sequence of development from a zygote to an embryo is as follows: cleavage, morula, blastocyst, gastrula. Initially, the zygote undergoes rapid cell division known as cleavage, forming smaller cells called blastomeres. This process leads to the formation of a morula, which is a solid ball of cells.
Following this, the structure develops into a blastocyst, which has a distinct inner cell mass and is surrounded by an outer layer of cells.
Finally, gastrulation occurs, where the blastocyst reorganizes into a gastrula with different layers that will develop into various tissues and organs of the embryo.
Protein molecules differ from carbohydrate or fat molecules by the addition of this element.
Answer:
Nitrogen
Explanation:
The molecules of fats and carbohydrates contain mainly C, H, and O.
Proteins consist of long chains of amino acids, which contain NH₂ groups.
Thus, proteins contain C, H, O, and N.
The additional element is nitrogen.
Alice has just delivered her baby; however, because of financial constraints, she has to go back to working both of her jobs, and she can't give her baby the attention and stimulation it needs. Due to Alice's situation, her baby could suffer from:
Answer: Non organic failure to thrive.
Explanation:
This is a psychosocial failure in which the child who is less than 2 years of age and have no known medical conditions but fails to get proper growth and health.
In this condition the child does not suffers from any medical condition but the child lacks emotional or maternal deprivation which is indirectly or directly related to nutritional deprivation.
In this condition the child lacks proper feeding or care.
Dr. Tylka is conducting research about the risk of developing eating disorders in adolescent boys. She concludes that her findings apply not only to the sample of high school boys she studied, but to other males in other settings and contexts. In this regard, Dr. Tylka is stating that her findings have high __________ validity.
Answer: External validity.
Explanation:
When any research is done, then there are two possibility of its validation. One is internal validation and other is external validation.
The internal validation refers to the condition in which the conclusion of the study is within context of the particular study.
The external validation refers to the condition in which the conclusion of the study is out of the context.
Here, The study was performed only on the eating disorders in the adolescent boys but the conclusion included other males of different age groups.
Dr. Tylka's conclusion that her research findings on the risk of developing eating disorders in adolescent boys can be generalized to other contexts indicates she believes her findings have high external validity.
Explanation:Dr. Tylka is stating that her findings have high external validity. This term refers to the extent to which the conclusions drawn from a particular study can be generalized, or extended, to other settings, populations, or times. The generalizability of a study's results is an important aspect of its external validity. It relies on the use of valid survey questions which accurately measure what they are intended to measure, and reliable survey questions that consistently produce similar results across different instances to ensure a lack of bias.
Dr. Tylka's confidence in her research suggests that she believes her study's constructs and their measurement methods, including the survey questions, have been well designed to accurately represent and assess the risk of developing eating disorders among adolescent boys. This assurance further implies that these methodological tools are likely to yield similar findings if used in different contexts, which strengthens the claim of high external validity.
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
1. Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time?
A. A line graph
B. A bar graph
C. A pie chart
D. A timeline
Answer:
C. A pie chart
One of the most important theories in forensic science is regarding the Principles of Trace Evidence.
True or False
Answer:
True
Explanation:
One of the most important theories in forensic science is regarding the Principles of Trace Evidence.
_____ gave Stanford nursery schoolchildren a choice between a marshmallow now and two later. He found that the children who were able to wait had higher completion rates and incomes and were less likely to experience addiction as an adult. He also found that this tendency to wait or not persisted even 40 years later.
Answer: the correct answer is Walter Mischel.
Explanation: Walter Mischel was an important Austrian psychologist that studied personality.