An animal emits a response in the presence of a certain tone. if a slightly higher pitched tone elicits the same response, then stimulus _______ has taken place
Your blood pressure is 135/85, what does this mean in terms of the amount of pressure in the systemic arteries and in terms of what the heart must generate to eject
High blood pressure
Many yogurt containers have a seal that says contain live cultures. This means that there are live bacteria in the yogurt which can function as probiotics. Which sentence BEST describes the purpose of these probiotic bacteria?
A-the bacteria are beneficial because they give the yogurt it’s fruit flavors
B-the bacteria are beneficial because they provide an additional source of protein in the yogurt.
C-the bacteria are beneficial because they act as a preservative to extend the shelf life of the yogurt
D-the bacteria are beneficial because they can improve the balance of good bacteria in a persons intestines.
An isotope has the same ________, but a different ________
Answers
A) atomic number, mass number
B) Mass number, atomic number
C) number of neutrons, number of protons
D) number of protons, number of electrons
Answer:
Atomic number, mass number.
Explanation:
The three sub atomic particles of the atoms are electron, proton and neutron. The atomic number of the element is equal to the number of protons of the element.
Isotopes may be defined as the elements that have the same atomic but different mass number. The simplest example of isotopes are protium, deuterium and tritium. They have the same atomic number 1. These are the isotopes of hydrogen.
Thus, the correct answer is option (A).
Alvira is being treated for borderline personality disorder in an inpatient treatment center. what will the second stage of treatment generally involve
Borderline personality disorder refers to a kind of mental illness, which is signified by an ongoing pattern of differing moods, behavior, and self-image. In the second stage of borderline personality disorder, the patients are been permitted to demonstrate their physical emotions that the patient is avoiding for some time.
The objective of this stage is that the patient fully expresses his or her emotions. The correct answer is option C that is, discussing the loss of her parents at the age of five and how this is associated with Alvira's current emotional issues.
Thermohaline circulation is movement of seawater due to differences in what two properties?
1)
density and temperature
2)
salinity and temperature
3)
temperature and depth
4)
salinity and density
Answer is 2. Salinity and temperature.
The movement of water in the ocean is called thermohaline circulation. This circulation is depends on temperature and salinity. These two factors together affect the density of seawater. More dense seawater sinks below less dense seawater and thus the oceans circulate partially based upon their temperature and salinity. Heat from the Sun affects temperature of seawater. Surface seawater gets more heat near the equator than near the poles, and similarly more in the summer than in the winter. Salinity of seawater is affected by evaporation, precipitation, ice formation, and ice melting. Evaporation increases the salinity of seawater because when seawater evaporates, the salts are left behind, thus increasing their concentration. Precipitation and river input decrease salinity because the input of freshwater dilutes the salts in seawater, thus decreasing their concentration.
Which organ suffers the least damage during prolonged starvation?
A 21-year-old presents with inflammation of the testes and is diagnosed with orchitis. what is the most likely cause of his symptoms?
what is a characteristic of scavengers that make them different from carnivores PLEASE HELP.
Fats obtained from a variety of foods are essential nutrients but may be harmful to the body in some forms. (blank)are healthy fats that have at least one double bond in the fatty acid chain. Most (blank) are artificially hydrogenated fats that have detrimental effects on health.
-saturated fat
-unsaturated fat
-trans fat
One function of the plant cuticle is to increase water uptake by roots true or false
In eukaryotic nerve cells, k+ concentrations at rest are __________. in eukaryotic nerve cells, k+ concentrations at rest are __________. higher inside the cell than outside the cell higher outside the cell than inside the cell equivalently high both inside and outside the cell equivalently low both inside and outside the cell
. Many cities have “combined” sewers. In good weather, these systems funnel sewage to treatment plants. During rainstorms street runoff is combined with sewage. Combined sewers in cities can be problematic because _____. the sewers cannot handle the volume of waste from street runoff and sewage sewers are often blocked by trash that people have thrown into them street runoff cannot flow into the sewers and be safely taken to treatment plants street runoff often causes the sewers to deteriorate
The given blank can be filled with the sewers cannot handle the volume of waste from street runoff and sewage.
The combined sewage system is very popular in many big cities. The sewage system handles all the sewage combining from the houses. During the rainy season, the water flows in the sewer, causing the overflow of the sewers and spread of water in the nearby regions.
a certain tapeworm secretes a chemical that slows the intestinal pulsation of its host. this helps to ensure that the tapeworm isnt expelled from the body of the host. explain how adding this chemical to a drug for humans might increase the drugs effectiveness
which of the following soils has the roughest texture potting soil silt clay sand
Answer:sample c
Explanation:
ions are necessary to activate the binding sites on the actin filaments.
Answer:
Complete the following statements.
Calcium ions are necessary to activate the binding sites on the actin filaments.
The molecule ATP is required each time the myosin head detaches from one site and reattaches to another.
Explanation:
just got it from edge
Which of the following terms describes the study of genes during the 1900s?
True or false: the quantity represented by ω0 is a function of time (i.e., is not constant).
What is a wind farm? A. a farm that uses wind to pump water for irrigation B. a place where wind energy is harvested C. a place where wind is produced D. a farm that uses wind to power equipment
Answer:
B. a place where wind energy is harvested
Explanation:
bacteria can reproduce quickly by means of binary fission. because of this, after binary fission..
Out of the following given choices;
A)the offspring will have traits of both parents.
B)there is genetic variation among the offspring.
C)all the offspring will be genetically identical.
D)none of the offspring will be genetically like the parents.
The answer is C. This is because, in binary fusion, they are no formation of gametes. Therefore genetic variability that comes with sexual reproduction not found in asexual reproduction. Mostly, the offspring buds off from the parent or grows from a split part of the parent. Therefore the offspring is genetically identical to the parent
Black fur(b) in guinea pigs is dominant over white fur(b). find the probability of a hybrid offspring in the cross: bb x bb. 0% 25% 50% 75% 100%
Answer:
The correct answer is 75%
Explanation:
I just had this question and got it right.
Why do you think there are fewer heart transplants performed each year than kidney transplants?
This is because, people, generally, have two kidneys and are also able to function properly with one functional kidney. Therefore it is easier to perform kidney surgery without putting the patient’s life at risk as compared to heart surgery. Everyone has one heart, a critical organ whose surgery has to be well planned and done only if the risk of not doing the surgery outweighs that of doing the surgery.
Compare and contrast Broca’s area and Wernicke’s area. Describe how each was discovered.
Answer:
Broca’s area is the area of the brain that controls speech production. It was discovered by Paul Broca after he discovered a lesion in the left frontal lobe of a patient who could not speak. Wernicke’s area is the area of the brain that controls speech comprehension. Like Broca’s area, it also plays a role in speech production. Wernicke’s area was discovered by Carl Wernicke, who found that damage to the left temporal lobe resulted in speech deficits.
Genetic material that directs the cell is called (2 points) RNA the nucleus cytoplasm DNA
True or False
Genetics account for all differences in animals.
A. what role does mrna play in the flow of information in the cell? (hint: remember the central dogma of molecular biology.) please include the basic flow of information in the cell.
What are the limitations to using electrophoresis to verify purity of a protein product?
Two homologous sets of genes" can mean either two similar collections of genes coming from your two separate parents or two similar collections of genes arranged on two complete sets of chromosomes
Final answer:
Homologous chromosomes are pairs of chromosomes that contain the same genes in the same order, but may have different alleles, leading to genetic diversity. Individuals inherit one chromosome from each parent, which contributes to traits like blood type or dimples, and can result in homozygous or heterozygous genotypes.
Explanation:
Understanding Homologous Chromosomes
When we speak of 'two homologous sets of genes,' we are referring to two related sets of genes that define our hereditary traits. Each person receives 23 chromosomes from each parent, for a total of 46. These chromosomes come in pairs, one from the mother and one from the father, and thus are described as homologous. Homologous chromosomes have the same genes arranged in the same order; however, they may carry different alleles, which are variations of these genes.
These different alleles contribute to the genetic diversity in humans. For instance, if we consider the gene responsible for blood type, a person may inherit two identical alleles, which would make them homozygous (e.g., AA, BB, OO), or two different alleles, making them heterozygous (e.g., AB). Genetic inheritance plays a crucial role starting at conception when the sperm and egg cell unite, each donating 23 chromosomes.
A straightforward example is the trait for dimples; a child can inherit the allele for dimples from one parent and an allele for no dimples from the other parent. This demonstrates how homologous chromosomes can carry different genetic information that affects the same trait and how this variation results in the diverse characteristics we observe.
"the pathway followed by glucose 6 phosphate when the cell needs to divide is called"
The diversity found among dna molecules is due to the sequence of _______.
Final answer:
The diversity among DNA molecules comes from the sequence of nucleotides, which can create a vast number of combinations despite having only four types. Mutations contribute to this diversity by altering DNA sequences, leading to variations among individuals.
Explanation:
The diversity found among DNA molecules is due to the sequence of nucleotides. Even though DNA consists of only four different bases — adenine (A), cytosine (C), guanine (G), and thymine (T) — the arrangement of these nucleotides can vary infinitely. Each organism has a unique DNA sequence, which serves as a genetic blueprint vital for its development, functioning, and reproduction. This genetic diversity is the foundation of the wide variety of life on Earth.
Mutations are changes in the nucleotide sequence that can occur spontaneously or due to external factors like radiation or chemicals. These mutations can lead to variations among individuals within the same species, contributing to the biological diversity we observe. Such variations include single nucleotide polymorphisms (SNPs), which are differences in single nucleotides between individuals, further highlighting the role of nucleotide sequences in genetic diversity.