The diagram shows magnets aligned so they will attract each other is D. as it shows the magnetic pole is showing attraction.
What is the magnetic pole?A magnetic pole, placed at every give up of a magnet in which the outside magnetic area is strongest. A bar magnet suspended in Earth's magnetic area orients itself in a north-south direction. The north-looking for pole of one of this magnet, or any comparable pole, is known as a north magnetic pole.
A magnet continually comes with poles: a north pole and a south pole. The major distinction between north and south pole is that a north pole is attracted toward the south pole of any other magnet whilst a south pole is attracted toward the north pole of any other magnet.
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How does the loss of bicarbonate due to diarrhea increase the protons in the blood?
Answer:
Increase of protons (H+) in the blood causes acidosis. These effects decrease hemoglobin’s affinity for oxygen and weakens its capacity to bind and increasing the haemoglobin dissociation.
Loss of bicarbonate stores by diarrhoea or tubular renal waste results in a state of metabolic acidosis leads increased concentration of plasma chloride and decreased concentration of plasma bicarbonate. Decrease in plasma bicarbonate leads to increase in H+ ions causing acidosis.
_______ is an organism’s genetic makeup, while ________ is an organism’s physical appearance.
Biological transmission differs from mechanical transmission in that biological transmission
Answer:
Biological transmission involves the reproduction or propagation of agent or pathogens within the arthropods vectors before transmission begins.while mechanical transmission involves just transfer of pathogens/agents from an infected host,to another suspectable host directly(direct mechanical transmission) or when anthropoids transmits pathogens obtained from from a contaminated source.(indirect mechanical transmission).
The two mechanisms represented mode of transmission of diseases.
A man with the autosomal recessive disorder phenylketonuria (PKU) and a woman without PKu heve a son named Peter, who does not have PKU. Peter is curious about whether hs mother is a carrier for PKiu Which fact would allow him to know Peter's matemal grandmother does not have PkU.
1. Peter's maternal grandfather does not have PkU
2. Peters maternal grandfather has PKu
3. Peter submits his own blood semple to a local genotyping lab, which establishes that he is a carrier for Pku
4. Peter's own daughter has PKU
Answer:
2. Peter's maternal grandfather has PKU.Explanation:
Such type of the genetic disorder in which two copies of a gene must be mutated at a time is called autosomal recessive disorder such as sickle cell anemia, phenylketonuria, and some other diseases. When a sing copy of a gene is mutated in a person then this disorder is not appeared and the person is called a carrier. So when a child is born by two carrier parents then there is a chance that a child will be affected if both the parents donate mutated genes. In the case of Peter, since peter does not show this defect this means his maternal grandfather was affected by this disorder.A sample of DNA from an unknown organism is analyzed and found to contain histone proteins, more than 2 billion base pairs, and large segments of noncoding DNA. From this information, one can conclude that the organism is:
Answer:
The correct answer is an eukaryote.
Explanation:
The DNA present in eukaryotes comprises chromosomes bundles, these bundles contain molecules of linear DNA, which is wrapped around the protein, that is, alkaline known as histones. These histones help the DNA to turn into a more composite composition.
The DNA present in a eukaryote may comprise more than two billion base pairs, and because of the linear characteristic, the DNA within a eukaryote comprises sequences of non-coding DNA known as telomeres found on each terminal of the chromosomes.
What is the process of water vapour moving out of the leaves?
The process of water vapor moving out of the leaves is known as transpiration. Transpiration is a vital physiological process in plants, whereby water is absorbed by the roots from the soil and transported upwards through the plant's vascular system (xylem) to the leaves. Once in the leaves, water molecules evaporate from the surfaces of specialized cells called stomata into the surrounding air as water vapor.
Transpiration serves several essential functions in plants. Firstly, it facilitates the uptake of water and minerals from the soil, providing necessary nutrients for growth and metabolism. Additionally, transpiration helps to cool the plant by dissipating heat through the process of evaporation. This cooling effect is particularly crucial for plants growing in hot environments, as it helps prevent overheating and maintains optimal physiological conditions.
Stomata, small pores located primarily on the undersides of leaves, control the rate of transpiration. These pores are surrounded by specialized guard cells that can open and close to regulate the movement of gases, including water vapor, into and out of the leaf. When stomata are open, water vapor diffuses out of the leaf into the surrounding air, driven by differences in water vapor pressure between the leaf interior and the external environment.
Factors such as light intensity, temperature, humidity, and wind speed influence the rate of transpiration. Higher light intensity and temperatures generally increase transpiration rates, as they enhance the evaporation of water from the leaf surfaces. Conversely, high humidity levels reduce transpiration rates, as the concentration gradient for water vapor between the leaf and the air is diminished.
Overall, transpiration plays a crucial role in plant water balance, nutrient uptake, and temperature regulation, making it a fundamental process in the physiology and ecology of plants.
A cross section of a seed is shown.
Which is represented by the letter X?
embryo
seed coat
stored food
leat
S
IL
Answer:
The correct answer is embryo
Explanation:
The atrial cells and ventricular cells are connected to each other using gap junction so that the wave of depolarization can directly spread from the atrium to the ventricle without the AV node.a.true b.false.
Answer:
The given statement is true.
Explanation:
The atrial cells and ventricular cells are connected to each other using gap junction so that the wave of depolarization can directly spread from the atrium to the ventricle. This is true.But, not without using the AV nodes. Through myocytes, the depolarizing waves pass much slower than the atrioventricular cells. AV nodal cells conduct them much faster than the atrial and ventricular cells. This system works as a standby. If there is some problem with the AV node, the atrial and ventricular cells will be able to spread the depolarizing waves with the help of gap junctions and without bothering the AV node.On-center cells: A. are excited by light that falls in the periphery of their receptive field. B. are excited by light that falls in the center of their receptive field. C. are inhibited by light that falls in the center of their receptive field. D. are excited by light that falls across their entire receptive field.
Answer: B) are excited by light that falls in the center of their receptive field.
Explanation:
There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.
If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.
Hence, the correct option is B.
Final answer:
On-center cells are excited by light that falls in the center of their receptive field. These cells are part of the retina's ganglion cells, which are connected to the photoreceptors through the bipolar cells and contribute to visual contrast and sharpness.
Explanation:
A student asked whether on-center cells are excited by light that falls in the periphery of their receptive field, in the center of their receptive field, or across their entire receptive field, or if they are inhibited by light that falls in the center of their receptive field. The answer to this question is: B. are excited by light that falls in the center of their receptive field.
In the visual system, particularly the retina, there are photoreceptors like rods and cones that respond to light. These photoreceptors connect to bipolar cells, which in turn connect to ganglion cells. These ganglion cells have receptive fields with distinctive on-center and off-center characteristics. On-center cells become excited when light stimulus is applied to the center of their receptive field and become inhibited when the light stimulus is applied to the periphery of the receptive field. This process is part of a complex neural circuitry including photoreceptors, horizontal cells, bipolar cells, and amacrine cells, which helps to enhance the visual contrast and sharpness of the image.
You and your partner Amy arrive on scene to find a woman with hives over much of her body. She is wheezing and complaining of difficulty breathing. Her husband says she was stung by a hornet and has no prior history of allergies. What would be the best course of action?
Answer:
Explanation:
Based on the scenario being described within the question it can be said that the best course of action would be to place a high flow of O2 and rapid transportation if the patient appears to be going into anaphylaxis. Mainly because this is a severe life threatening allergic reaction, that occurs at a moments notice and closes the individuals airway causing breathing to become very difficult.
Which feature on microscope did Anton van Leeuwenhoek add that enabled him to magnify organisms about 250 times?
•drop of water
•light from oil lamp
•tubes that extend
•polished lenses
Answer: Polished lenses
Explanation:
I did the quiz
Answer:
polished lenses
I got it right :D
What term means change over time?
Answer:
Evolution
Explanation:
evolution is what happens over a long periods of time
If you had a sample organism and wanted to measure its rate of cellular respiration, which of the following methods would provide useful information? Study the equation for cellular respiration to have a clear sense of what is consumed and what is produced before answering the question?
Explanation:
Aerobic cellular respiration is the process by which the cells of a living being separate nourishment and transform it into the energy they have to play out their essential functionsThe most importance of aerobic respiration in living things can't be belittled Without this process, no living thing would survive Oxygen is a critical component of Aerobic respiration in many animalsThe motivation behind the oxygen is so significant is on the grounds that it assumes a critical job in the mitochondria, the powerhouses of the cellThe mitochondria has two layers. On the inward layer, 4 gatherings of protein structure the Electron Transport ChainWhen a substance moves across the plasma membrane along a concentration gradient at a rate faster than would be expected by simple diffusion alone but without the expenditure of metabolic energy, the process is best described as:
A. Facilitated diffusion
B. active transport
C. pinocytosis
D. the work of an ion pump
E. Osmosis
Answer:
A. Facilitated diffusionExplanation:
The plasma membrane is an important membrane that is present in the cell and plays an important role in the exchange of the materials across the cell. This membrane is made up of phospholipid bilayers and some other components. Movement of the substances across the membrane takes place by two methods such as an active process in which the energy required and the other is the passive process in which energy is not required.Diffusion, osmosis, and facilitated diffusion are an example of passive diffusion. Facilitated diffusion is such type of passive movement in which the membrane proteins helps in the transport of the substances across the membrane and thus the is faster than other passive processes. In this process no energy is required and movements take place along the concentration gradient.
Molecules are moved over the membrane using one of two methods: an active process that requires energy, or a passive mechanism that does not.
The process is best described as a form of passive diffusion (Facilitated diffusion) option A.
Facilitated diffusion is a sort of passive movement in which specific transmembrane integral proteins aid in the transport of molecules across the membrane.This result in a faster process than other passive processes.There is no need for energy in this particular transport process and movements are made along the concentration gradient.
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The presence of a mutualist spider in a certain area improves the survival of an herbaceous shrub by reducing the impact of herbivorous insects. These spiders are preyed on by lizards, and lizards are eaten by birds. An increase in the density of lizards would most likely have a _______ direct effect on spiders and a _______ effect on the plant.
Answer:
An increase in the density of lizards would most likely have a negative direct effect on spiders and a negative indirect effect on the plant.
Explanation:
Many animals modify their environments, apparently to reduce predation risk .Scincid lizards are included or excluded from 21 replicated plots, and spiders therein are classified as exposed or sheltered, depending on whether they are uncovered in their web or hidden in cocoons, leaves/debris, or burrows. Exposed spiders are greatly affected by the presence of predatory scincid lizards, whereas sheltered spiders are not. More specifically, lizards, which forage close to the ground, reduce the abundance of exposed spiders by two-thirds but have no effect on the abundance of sheltered spiders. Sheltered spiders are able to avoid predation and share space with lizards, suggesting that shelter construction is a mechanism for reducing predation risk and has important population consequences.
the importance of biodiversity in chimps
LISA
Biography
Editorial
All of this is nothing, however, against Enrique's
longing for his mother, who left him behind
eleven years ago. Although his efforts to survive
often force her out of his mind, at times he thinks
of her with a loneliness that is overwhelming. He
remembers when she would call Honduras from
the United States, the concern.
-Enrique's Journey,
Sonia Nazario
Use the drop-down menus to choose whether each
statement describes the biography, the editorial, or
both
The passage presents the idea that lives are in
danger
The text uses third-person point of view to express
feelings
The text presents an opinion about the topic of
immigration
Answer:
The passage presents the idea that lives are in danger.
✔ both
The text uses third-person point of view to express feelings.
✔ the biography
The text presents an opinion about the topic of immigration.
✔ the editorial
Explanation:
The first statement describes both an editorial and a biography. The second statement describes the biography. The third statement describes the editorial.
A biography is simply an account of a person’s life. It can be about a living person, a person who lived hundreds of years ago, a person who is world-renowned, a forgotten hero, or a group of people.
An editorial, a leading article, or a leader is an article that is written by the editor-in-chief of a newspaper (or magazine). The article is usually not signed. Editorials are often referred to as “opinions”.
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A mammalian skull is found in a forest. The skull has incisors, small canines, and many large premolars and molars with prominent surface ridges. Based on this information, what conclusions can be drawn about the feeding behavior of this organism?
Answer:
The animal was most likely an omnivore.
Explanation:
From the dentition, the animal is most likely an omnivore. Carnivores have large and sharp canines for tearing of flesh while most herbivores lack canines altogether.
Answer:
The feeding behavior of this organism is omnivorous.
Explanation:
Omnivorous are those organisms which feed on both plants and animals for the uptake of energy. There are various types of teeth are present in the jaw of omnivorous organisms such as incisors, canines, premolars and molars. Every teeth have a specific function i . e. incisors helps in cutting of food, the canines helps in tearing and the molars and premolars is responsible for crushing the food materials.
Enkephalins and endorphins are peptides that act like morphine. True or False
Answer:
True.
Explanation:
Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.
Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.
Enkephalins and endorphins act on the mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.
Hence, Enkephalins and endorphins are peptides that act like morphine.
Answer:
True
Explanation:
Endorphins are hormones of the body that are internally derived. They are opioid neuropeptides produces in humans and some other animals and are able to bind to opiate receptors. These endogenous peptides are similar to opiod drugs e.g morphines, they help to relieve pain and stress. It can also be referred to as the happy hormone.
Also, enkephalins are endogenous hormones produced in the body. They are opioid pentapeptides and are similar to morphines as they are able to bind opiate receptors. They also help in relieving stress.
BRAINLY please help
Which of these cell types is NOT an immune cell?
A.
leukocyte
B.
phagocyte
C.
lymphocyte
D.
erythrocyte
Answer:
D
Explanation:
A is incorrect because leukocyte is a colorless cell that circulates in the blood and body fluids and is involved in counteracting foreign substances and disease; a white (blood) cell.
B is incorrect because phagocytes are a type of cell within the body capable of engulfing and absorbing bacteria and other small cells and particles.
C is incorrect because lymphocyte are a form of small leukocyte (white blood cell) with a single round nucleus, occurring especially in the lymphatic system.
D is correct because erythrocyte are a red blood cell that (in humans) is typically a biconcave disc without a nucleus. Erythrocytes contain the pigment hemoglobin, which imparts the red color to blood, and transport oxygen and carbon dioxide to and from the tissues.
Question 25
4 pts
Artificially transported sand is associated with which type of stabilization?
A. groin
B. seawall
C. beach nourishment
D. relocation
Answer:
C. Beach nourishment
Explanation:
Beach nourishment the process by which sand lost through erosion or longshore drift is replace by other sources.
Its also known as beach renourishment or replenishment.
Scientists believe the Archaebacteria to be survivors of an ancient group of organisms that bridge the evolutionary gap between prokaryotes and
Answer:
Explanation: Scientists believe that Archaebacteria are the survivors of an ancient group of organisms that bridge the evolutionary gap between prokaryotes and eukaryotes. Eukaryotes are the true evolved cells and they differ from prokaryotes
Explanation:
In Shorthorn cattle, both red coat color and white coat color are true breeding. Crosses of red cattle x white cattle produce offspring that are uniformly reddish brown but thickly sprinkled with white hairs. This type of coat color is called roan. Crosses of roan x roan produce 1/4 red : 2/4 roan: 1/4 white. What kind of genetic inheritance can explain these results
Final answer:
The results can be explained by incomplete dominance, where neither allele is dominant and the heterozygous individual displays an intermediate phenotype.
Explanation:
The kind of genetic inheritance that can explain the results of crosses between roan cattle is incomplete dominance. In incomplete dominance, neither allele is dominant over the other, and the heterozygous individual displays an intermediate phenotype. When red cattle (RR) are crossed with white cattle (WW), the offspring have a genotype of RW, resulting in the roan phenotype, which is a mix of red and white hairs.
This type of inheritance is similar to what is observed in snapdragons, where a cross between a homozygous parent with white flowers (CWCW) and a homozygous parent with red flowers (CRCR) produces offspring with pink flowers (CRCW). In both cases, the heterozygous genotype produces an intermediate phenotype.
What are the most common symptoms of
musculoskeletal diseases and disorders?
Answer:
Common symptoms of musculoskeletal disorders include pain, weakness, stiffness, joint noises, and decreased range of motion. Inflammation may cause pain, swelling, warmth, tenderness, impaired function, and sometimes redness of the overlying skin.
Includes Diseases: Rheumatoid arthritis
Explanation:
Answer:
Common symptoms of musculoskeletal disorder includes pain, stiffness, weakness, swelling, and motion range decreases.
Explanation:
Musculoskeletal disorder is combination of Muscles and skeleton.
It is a disorder that affect the body movement.
For e.g. tendon strain (disease) is an example.
Consider a hypothetical locus with two segregating alleles (A and B). Population size is small, mutation is absent, and neither of the two alleles has a selective advantage. After a long period of time (many generations), what will occur?a) The population will eventually become monomorphic for one of the two alleles.b) Allele frequencies will cycle over time.c) Balancing selection will maintain both alleles.d) Allele frequencies will change over time, but both alleles will remain.e) Allele frequencies will remain constant.
Answer:
The preferable option will be - A.
A. The population will eventually become monomorphic for one of the two alleles.
Explanation:
The population will eventually become monomorphic for one of the two alleles because -
Here mutation is absent. No other allele is allowed to get involved here. The population size is small. As allele A and B are fixed for that population after many generations the population will become monomorphic for that two alleles.Which characteristic is found in liquids and gases?
particles stay in a fixed position
takes the shape of the container
has a fixed volume
no particle movement
Answer:
Takes the shape of the container
A species of a large brown bear lived in Siberia about a million years ago. Over time, the northern population became white-colored and acquired heavier fur as it blended into the snowy landscape. The southern population acquired lighter, darker-colored fur as it adapted to forest ecosystems. Eventually, they could no longer reproduce with each other. Which of these terms describes this transition?
a. transmofrification
b. coincidence
c. providence
d. lost in translation
e. speciation
Answer:
e. speciation
Explanation:
The definition of speciation is: the evolutionary process by which populations evolve to become distinct species.
In this scenario, the bears that were once of the same species evolved in order to adapt to their environment. Once they evolved, they could no longer produce with each other, as they are now different species.
inhibition is a mechanism of succession in which Group of answer choices the arrival of one species at a site affects the subsequent colonization of other species. one species decreases the probability that a second species will become established. one species increases the probability that a second species will become established. the probability that a species can become established depends on the presence of another species.
Answer:
option B: one species decreases the probability that a second species will become established
Explanation:
Inhibition as a mechanism of succession occurs when some early species which could also include pioneer species make the site less suitable for the development of other species and do not allow them to become established and grow. When eventually these early species die, other species that were hindered will subsequently grow and become established gradually giving rise to a climax community.
Which systems work together so oxygen can be distributed to the cells of your body? How do these two systems work together to accomplish this task?
Answer: The human respiratory and circulatory systems
Explanation: The human respiratory and circulatory systems work together to supply the body with oxygen and get rid of waste carbon dioxide. While the former deals with air and the latter with blood, they work together seamlessly by coordinating the functions of the many parts of each system.
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Answer:
The respiratory and circulatory systems work together to bring oxygen to the cells in the body. The respiratory system takes oxygen from the air to the lungs, where the oxygen is transferred to the blood. The circulatory system transports the blood, which delivers oxygen to the cells in the body.
Explanation:
Sample Answer
Where does blood go after it leaves the right side of the heart
Answer: Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs.
Explanation: