Which of the following glands does not secrete any hormones?
Parathyroid
Hypothalamus
Thyroid
Posterior pituitary
Answers
Answer:
Posterior Pituitary
Explanation:
The posterior pituitary seems to be the only possible answer as it only secretes hormones through the nerve cells unlike the other three glands.
Related Questions
I am a real "powerhouse"
That's plain to see
I break down food
And release energy
What am I ?
Answers
What three components that bond the two strands of dna together must be overcome for replication to occur?
Answers
Hydrogen bonds holding together base pairs, stabilization by aromatic stacking of successive bases, and unwinding of DNA strands.
The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted. As the new nucleotides line up opposite each parent strand by hydrogen bonding, enzymes called DNA polymerases join the nucleotides by way of phosphodiester bonds.
Three types of bonds found in DNA are covalent and Ionic Bonds , hydrogen bonds and weak chemical bonds. The two strands in DNA are connected by chemical bonds between the bases such as adenine bonds with thymine, and cytosine bonds with guanine.
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Rank the phases of matter from the one with the least kinetic energy to the greatest kinetic energy for the particles in the substance.(1 point)
Responses
Least gas
↓
liquid
Greatest solidLeast gas downarrow liquid Greatest solid ,
Least gas
↓
solid
Greatest liquidLeast gas downarrow solid Greatest liquid ,
Least solid
↓
liquid
Greatest gasLeast solid downarrow liquid Greatest gas ,
Least solid
↓
gas
Greatest liquidLeast solid downarrow gas Greatest liquid ,
Skip to navigation
Answers
Answer:
Rank the phases of matter from the one with the least kinetic energy to the greatest kinetic energy for the particles in the substance.
Least kinetic energy: solid
↓
liquid
↓
gas: Greatest kinetic energy
DNA carries the genetic code for all of the traits possessed by an organism. DNA code is used to make proteins in the ribosomes.
Above is a model of DNA. Your lab partner is confused about what the model is showing. How would you explain is to him? Select
ALL that apply.
A)
Chromosomes (D) are small segments
DNA (A) that code for one protein.
B)
DNA (A) is the genetic material found in the nucleus (C) of all cells (B).
C)
Genes (E) are small segments of DNA (A) on a chromosome (D) that code
for one protein.
At division, DNA (A) shortens and condenses into discrete segments of DNA
called chromosomes (D).
D)
E)
DNA (A) is made of chromosomes (E) that are organized into genes (D) in
the nucleus (C) of the cell.
Answers
Answer:b,c,d
Explanation:
They usa test prep told me
what is the correct order for scientific method
Answers
Answer:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
Explanation:
some forms are different but this is mine.
If you see a diseased plant, it is most likely in the stage of its life cycle.
O death
Ogrowth
Obeginning
adult ?
Answers
Answer:
death
Explanation:
it's diseased so it's not growing nor beginning adult
How are photosynthesis and cellular respiration related?
A. The equations for photosynthesis and cellular respiration are opposites of each other
B. Photosynthesis provides the energy for cellular respiration
C. Both processes take place in mitochondria
D. Only plants perform photosynthesis, and only animals perform cellular respiration
Answers
Answer:
I think it is B. Photosynthesis provides the energy for cellular respiration
If it isn't I'm super sorry!
Explanation:
The term used to describe the fact that cancer cells have lost the specializations of the cells from which they descend is
Answers
The term used to describe the cancer cells which have lost specialization from which it originated is called dedifferentiation.
Cancer is defined as the uncontrolled growth of the cells which then develops into tumor. The tumor is of two types: benign and malignant. The benign tumor does not spread to other tissues of the body whereas malignant cancer spread to the underlying tissues. The tumor is formed as a result of dedifferentiation. The dedifferentiation is the inability of the cell to perform functional and structural differentiation.
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Part D What strengths and weaknesses do you see in your improved model?
Answers
Answer:
The new model correctly shows the process of oxygen and carbon dioxide exchange that takes place in the capillaries. However, it does not show that this oxygenated blood travels back to the heart for distribution to the body. It also does not show the structure of the alveoli.
Explanation:
PLATO answer
there are some sections of dna that are not shaded with any colors. these represent non-protein-coding sections of dna. if these sections of dna do not code for a protein, what do you think these segments of dna are used for? are these sections of dna even necessary? explain.
Answers
Non-coding The regions of an organism's genetic code which do not correspond for amino acid residues, which are the components of proteins, correspond to DNA.
The directions for constructing proteins, which are other big molecules. These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of your cells.
Describe DNA ?The genetic material in ourselves but almost all other species is called deoxyribonucleic acid. In almost all of a person's cells, this is true.
How do chromosomes work?A component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome. There are typically 23 copies of chromosomes in every cell.
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what do cells do during cell division in order to make sure the full set of dns is replicated
Answers
Cells use a process called DNA replication during cell division in order to ensure that the full set of DNA is copied correctly.
DNA replication is the process by which a cell makes a copy of its DNA before cell division. During this process, the two strands of the double helix DNA molecule separate and each strand acts as a template for the formation of the new complementary strand. This process is facilitated by various enzymes and proteins, which then result in two identical copies of the original DNA molecule. DNA replication occurs during the S phase of the cell cycle.
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Jolene's friends are using weight-loss supplements to lose a lot of weight in a short amount of time. Jolene didn't think it was a safe idea but her friends continued to encourage her to try them, and she is having trouble standing her ground. What can Jolene say to help her handle this difficult situation?
Answers
Explanation:
Jolene should give her pros and cons about the weight loss supplements she should do more research so that whenever she's going to talk to her friends she has facts on her hand
Answer:
"I am worried that those supplements might be unhealthy, and I am uncomfortable with you pressuring me to try them."
Explanation:
took the quiz and got it right :)
hope I helped ~~~
Sheep are raised in significantly smaller numbers in the United States than either cattle or pigs. Sheep farming has changed in recent years. How has it changed?
A.
It has increased since 1980.
B.
It has declined since 1980.
C.
It has increased since 2000.
D.
It has declined since 1960.
Answers
The shortage of the resources along with the maintenance as this sis why the requirement that is getting lesser has impacted the industry. Although it contributes a large amount to the economy.
What is the name of 1st hybrid sheep ?It is the sheep that was named as Dolly and was invented in 2002 by cloning.
The shortage of the large-animal veterinarians taking place in many areas of country is challenge to sheep industry and to the other livestock industries as well . The same conditions led to the short fall in the United states as well.
Today, the domestic sheep count is 1/10 of the size it was in the World War II in the United states . The decrease is a result of the economic and the cultural factors that are coming together And it has left to the wonders. Some of the sheep that are raised for the wool others primarily for food.
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Which of the following BEST describes the individual represented by the karyotype?
A. male with Turner's syndrome
B. normal female
C.female with Down syndrome
D. Female with Edward's syndrome
Answers
Answer:
B
Explanation:
I looked it up
9. What does the term mutation mean in regards to human genetics?
Answers
In genetics, a mutation is a change that occurs in the DNA sequence of an individual. This change can affect the genetic information passed from one generation to another. Mutations can occur spontaneously, or they can be caused by environmental factors such as radiation or exposure to chemicals. In human genetics, mutations can lead to genetic disorders or predisposition to certain diseases. Some mutations may have no effect at all, while others may have a significant impact on an individual's health and well-being.
Answer:
Mutations are serious malfunctions to the human genetics. An example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.
Explanation:
In the autumn, many birds will collect seeds and then hide them in various caches throughout their habitat. The birds will guard their caches from other birds, and move the caches if they start to dry out. These caches provide a food source for the birds during the winter. What is an abiotic factor that contributed to the evolution of this set of behaviors? A. being preyed upon by larger birds B. competition with other birds for space C. limited food availability D. cold winter climate
Answers
Answer:cold winter climate
Explanation:During winter specially in the eastern and western part of the world....snows bury grounds and food that enables this organisms live....and cold can also affect them
Answer:
Answer: c. limited food availability
Explanation:
Both biotic and abiotic factors are responsible for shaping the evolutionary framework of the population. Resource availability can be one of the important abiotic factor in determining the evolutionary dynamics of the population or species. Limitations in resource can result in increase in competition. According to population exclusion principle when two species compete for the same limiting resource this results in co-evolution of both the species. But the extent of evolution may vary among the species. The one which undergoes more favorable evolution will be stronger competitor and drive more resources and will be fit for survival in adverse limiting conditions.
Explain why DNA is called a molecular clock.
Answers
The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.
Explanation:
with which hand did you catch the ruler faster when your eyes were closed
Answers
When catching a ruler with closed eyes, it is generally faster to catch it with the dominant hand. This is because the dominant hand is typically more coordinated and responsive than the non-dominant hand.
So, if you are right-handed, you will likely catch the ruler faster with your right hand when your eyes are closed. Similarly, if you are left-handed, you will likely catch the ruler faster with your left hand when your eyes are closed.
However, it is important to note that individual results may vary, and some people may find that they catch the ruler faster with their non-dominant hand even when their eyes are closed.
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Which of the following can lead to cancer?
A. a disruption in the cell cycle
B a cell entering the G0
C. A cell never leaving G0
D. The death of a cell
Answers
The option that can lead to cancer is a disruption in the cell cycle (option A).
What causes cancer?Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
Cell cycle is the life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division. The period of time in the cell cycle when nothing is happening is known as the G0 phase i.e. inactivity.
Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how the body works.
Therefore, disruption or alteration in the normal procedure of the cell cycle can lead to cancer.
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which statement(s) are true regarding plasma proteins? (select all that apply.)a. Provide clotting factors.
b. Transport triglycerides.
c. Synthesize complement proteins.
d. Transport cholesterol.
Answers
Based on the provided options, the true statements regarding plasma proteins are Provide clotting factors and Transport cholesterol.
a. Plasma proteins, such as fibrinogen, play a crucial role in the blood clotting process. They help form a clot when blood vessels are injured, preventing excessive bleeding.
d. Plasma proteins, specifically lipoproteins (such as LDL and HDL), are responsible for transporting cholesterol in the blood. This is important because cholesterol is insoluble in water and needs to be transported to and from cells by lipoproteins.
Option b is incorrect because plasma proteins do not directly transport triglycerides. Instead, triglycerides are transported by lipoproteins (e.g. chylomicrons and VLDL).
Option c is incorrect because plasma proteins themselves do not synthesize complement proteins. Complement proteins are part of the immune system and are synthesized primarily by liver cells, not plasma proteins.
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how is oxygen produced during photosynthesis?
Answers
Could Henrietta Lack's children inherit cancer from her.
Answers
Answer: C) A statement made by Henrietta Lacks’s husband to a magazine
Explanation:An excerpt from The Immortal Life of Henrietta Lacks
"Eventually I tracked down a few magazine articles about her from the seventies. Ebony quoted Henrietta’s husband saying, 'All I remember is that she had this disease, and right after she died they called me in the office wanting to get my permission to take a sample of some kind. I decided not to let them.'"
Answer:
Yes, but not directly, that's why it is unusual. Though, mutation of genes can in fact cause risk for cancer. This also includes for everyone else.
Which of the following is/are required in order for pancreatic acinar vesicles to be transported to the plasma membrane prior to secretion? (Select all that apply!)
GTP
Kinesin
Microtubules
ATP
Answers
Microtubules. Myofibrils or motor cells such as dynein are not in charge of transporting acinar vesicles to the plasma membrane previous to secretion. It is the microtubules that aid in this process.
The third significant aspect of the cytoskeleton is microtubules, that are rigid hollow wires about 25 nm in diameter. Microtubules, like actin filaments, seem to be dynamic structures that constantly assemble and disassemble within the cell. Microtubules, along with fibrils and cytoskeleton, are indeed the elements of the cell skeletal system that determine a cell's shape. Microtubules play a variety of roles, including mitotic spindle assembly in dividing cells and axon extension in neurons. Microtubules are important cytoskeleton components. They are found throughout all eukaryotic cells and play roles in cell division, cell motility, ion channels, and cell shape maintenance.
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Enzymes in the saliva begins the digestion of which nutrient ?
Answers
Please mark me as a brainliest
Is there a difference between vitamin d and vitamin d3.
Answers
If someone decides to pick up a cup after seeing that it is about to spill, organs act in what order?
A. eye, brain, muscle
B. muscle, brain, eye
C. brain, eye, muscle
D. eye, muscle, brain
Answers
The correct order of organs that act when someone decides to pick up a cup after seeing that it is about to spill is: A. eye, brain, muscle. The eye first detects the visual cue that the cup is about to spill and sends this information to the brain.
The answer is A. eye, brain, muscle.
The brain then processes this information and decides that action is needed to prevent the spill. Finally, the brain sends signals to the appropriate muscles, which then contract and move the hand to pick up the cup. This process involves a complex interplay of sensory and motor neurons in the body, and it can vary slightly depending on the individual and the specific situation.
The correct order of the organs involved in this process is: A. eye, brain, muscle.
1. The eye sees the cup about to spill.
2. The brain processes the information and decides to pick up the cup.
3. The muscles are signaled by the brain to perform the action of picking up the cup.
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Julia did an experiment to study the solubility of two substances. She poured 100 mL of water at 20 °C into each of two beakers labeled A and B. She put 50 g of Substance A in the beaker labeled A and 50 g of Substance B in the beaker labeled B. The solution in both beakers was stirred for 1 minute. The amount of substance left undissolved in the beakers was weighed. The experiment was repeated for different temperatures of water and the observations were recorded as shown.
Part 1: Which substance has a higher solubility?
Part 2: Explain your answer for Part 1. (8 points)
Answers
B is more soluble than A, which is less soluble. Mass of undissolved substance of substance A is more than Substance B at every temperature
What is Solubility ?One of the key factors in achieving the optimum drug concentration in the systemic circulation for the desired (expected) pharmacological response is solubility, the phenomenon of solute dissolving in solvent to produce a homogeneous system. The main issue in developing formulations for novel chemical entities as well as for generic development is low water solubility. Over 40% of the NCEs (new chemical entities) created by the pharmaceutical sector are essentially water insoluble. A significant difficulty for formulation scientists is solubility. Any drug that is to be absorbed must be present in solution at the absorption site.Particle size reduction, crystal engineering, salt formation, solid dispersion, use of surfactants, complexation, and other techniques are used to increase the solubility of poorly soluble drugs.Learn more about Solubility refer to :
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If an average cell in an organism lives for 40 hours, how much time would it spend in each of the phases?
Answers
Answer:
A cell spends most of its time in (M phase) or metaphase, this is when the cell divides. The Ameba sisters videos can help you.
Explanation:
Help is much appreciated. : )
All the info is in the picture. :D
Answers
Answer:
Viruses do not carry out metabolic processes. Most notably, viruses differ from living organisms in that they cannot generate ATP. Viruses also do not possess the necessary machinery for translation, as mentioned above. They do not possess ribosomes and cannot independently form proteins from molecules of messenger RNA. Because of these limitations, viruses can replicate only within a living host cell. Therefore, viruses are obligate intracellular parasites. According to a stringent definition of life, they are nonliving. Not everyone, though, necessarily agrees with this conclusion. Perhaps viruses represent a different type of organism on the tree of life
Out of the four "ingredients for evolution" we talked about in class, which one provides all the raw material for evolutionary forces to act on? A. Mutation B. Selection C. Genetic Drift D. Gene Flow
Answers
The correct answer is A. Mutation.
Mutation provides all the raw material for evolutionary forces to act on. Mutations are random changes in an organism's genetic material (DNA). They can be caused by various factors such as errors during DNA replication, exposure to radiation or chemicals, or even spontaneous changes.
Mutations introduce new genetic variations into a population. These variations can lead to differences in traits among individuals. Evolutionary forces such as natural selection, genetic drift, and gene flow act upon these variations, determining their fate in a population over time.
Selection (B) refers to the process by which certain traits become more or less common in a population based on their impact on survival and reproduction. It acts on existing genetic variations but does not provide the raw material itself.
Genetic drift (C) is the random change in allele frequencies in a population due to chance events. It can lead to the loss of certain variations or fixation of others, but it does not create new genetic material.
Gene flow (D) is the movement of genes from one population to another through migration and interbreeding. While it can introduce new genetic material to a population, it is not the primary source of raw material for evolutionary forces.
In summary, while selection, genetic drift, and gene flow are important evolutionary forces, mutation is the fundamental process that generates new genetic variations, providing the raw material for these forces to act upon.
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