The mammary glands enlargement during pregnancy primarily as a consequence of what hormonal process?
a- hormonal anaplasia
b-compensatory hyperplasia
c-hormonal hyperplasia
d- hormonal dysplasia
e- none of the above.

Answers

Answer 1

Answer:

c-hormonal hyperplasia

Explanation:

When there is increase in the number  of cells and tissues that appear normal under the  microscope,Hyperplasia is said to occur.If these occur in cells of an endocrine gland of a system,then it is refers to as hormonal hyperplasia.

Therefore during pregnancy,the proliferation of the glandular epithelium  in a pregnant woman (and at puberty in a females are examples of hormonal hyperlasia.

Its possible causes are;

a  surge in local production s of growth factors,

In the numbers of growth factors receptors on the  cells receptive to the factors,

and   due to activation of   specific intrancellular signalling pathways.


Related Questions

Different types of protists move in different ways. Describe how one type of protists you observed moves. Be specific.

Answers

Answer:

Euglena is a protist and it moves with the aid of structures called flagella

Explanation:

Flagella are known as locomotive cells which propels from the body parts of organisms . They are made of protein structures and formed in a helical manner.

They are whip like structures and usually helps in the movement of the protists through liquid surfaces through the whip like movement of the flagella.

1. List five processes that are regulated by the hypothalamus: A. __________________________________________ B. __________________________________________ C. __________________________________________ D. __________________________________________ E. __________________________________________

Answers

Answer:

Answered below

Explanation:

The hypothalamus is a small part of the brain located at it's base near the pituitary gland. It has three main regions and each region contains different nuclei. These neurons perform different important functions in controlling the many physiological processes and in the maintenance of homeostasis in the body. Five of such processes that are regulated by the hypothalamus include;

1) The hypothalamus regulates the release of hormones by producing hormone releasing factors which trigger or inhibit the release of hormones form other parts of the body.

2) Regulation of body temperature.

3) Regulation of blood pressure and heart rate.

4) Regulation of appetite and weight control.

5) Regulation of the volume of body fluids.

The fact that each plant gets only one allele from each parent plant is detailed in the law of

Answers

Answer: segregation law

Explanation:

The specialized soft tissue manipulation technique used to ease the pain of conditions such as fibromyalgia, movement restrictions, and temporomandibular joint (TMJ) disorders is known as _____.

Answers

Answer:

myofascial release

Explanation:

Which structure of a paramecium is analogous to a “reserve copy” of all the cell’s genes

Answers

Answer:

micro nucleus

Explanation:

the clean water act ___
set maximum contaminant levels for drinking water
required industries to reduce or eliminate point source pollution in surface waters
established national ambient air quality standards
requires that pollution control devices be installed on cars and trucks and at factories

Answers

Answer: The Clean Water Act required industries to reduce or eliminate point source pollution in surface waters

The Investigation
It’s your first day shadowing a detective, and already it’s been interesting…if you can call the murder of a young woman interesting. You’ve been trying to detach yourself by reading the file, but you have interviews later this morning and you’re nervous. Going back to the file, you jot down some notes on what you know so far.
Melissa was a 35-year-old nurse-midwife with over ten years’ experience delivering babies both in hospitals, as well as in homes when risk for complications were low. She was healthy; her only medical condition was an allergy to bee stings. The body was discovered by her boyfriend when he came over for a planned dinner. The dinner – spaghetti – was laid out, but no cooking had begun. There was also a plate of cupcakes, with a bite out of only one of them. The boyfriend said Meleea had not mentioned feeling unwell when they spoke earlier in the day. She was, however, tired, and understandably upset about a long birth she had assisted with where a mother had died in childbirth.
The medical examiner did not have results yet, so you sketch out some questions you have for the interviewees.
1. Who would you interview, and what would you ask?
2. Do you have any hypotheses about what happened to Meleea? Write at least one or two possibilities.

Answers

1. I would interview the boyfriend and family members of the mother who died in childbirth. I would ask where they were at time time of death and if they have an alibi.

2. There could have been something put in the cupcakes, since only one bite was taken from a single one.

What do you think might happen to tissues such as the intestinal lining if a disorder blocked mitotic cell division in all cells of the body

Answers

Answer:

This is what actually happens with chemotherapy for cancer. Drugs are given which inhibit cell division. Cells such as tumour cells, which are rapidly dividing are affected most, then other dividing cells such as the epithelial lining of the gut, which nedds cell division to repair itself. The result is ulceration and bleeding.

hope this answer is correct

Which of the following describes a benefit of membership in a research community?

Answers

Answer:

knowledge and valuable resources are shared among scientists

Explanation:

The best benefit and reason for joining a membership in a research community is that knowledge and valuable resources are shared among scientists. Since the entire community is working towards a common goal, then gaining information from everyone in order to get closer to that goal is priceless. Also, the ability to use high-end resources that would be impossible to use as a lone scientist due to its high price is also a very valuable benefit.

Why is it difficult to establish rules, regulations and laws to protect sea turtles over their entire range

Answers

Answer:

The reason why it is difficult to create rules, regulations and laws to protect sea turtles over their entire range is that, it would take a concerted effort on a global scale to achieve that. The logistics and administration of such efforts  of would take some years to work out.

Explanation:

Answer:

The reason why it is difficult to create rules, regulations and laws to protect sea turtles over their entire range is that, it would take a concerted effort on a global scale to achieve that. The logistics and administration of such efforts  of would take some years to work out.

Explanation:

Sea turtles can be found around the world. The efforts described above, therefore, would require that many different countries and cultures would have to cooperate as well as own their share of the responsibility required to make it so.

Legislation with regard to the efforts would need to be executed if not simultaneously, at least over approximately the same block of time.

Not only that, it would require tons of research as the peculiarity of each geographical location would be considered.

Cheers!

Cheers!

How did the Rf values differ between pigments and solvents?

Answers

Answer:

The Rf values indicate how soluble the particular pigment is in the solvent by how high the pigment moves on the paper.

Explanation:

The Rf values indicate how soluble the particular pigment is in the solvent by how high the pigment moves on the paper. Small Rf values tend to indicate larger, less soluble pigments while the highly soluble pigments have an Rf value near to one.

Implanting an electrode that supplies a weak electrical current to specific brain areas is called _____. It is useful in the treatment of _____

Answers

Answer:

Deep Brain Stimulation (DBS)

Depression, Uncoordinated body movements such as in Parkinson's disease

Explanation:

Deep brain stimulation is a surgical procedure in which a device that sends electrical impulses to the brain by means of lead wires connected to electrodes placed in the specific areas of the brain, is implanted in the body, typically the chest region.

This surgical procedure is usually required to treat diseases in which there is irregular and improper nervous stimulation of the brain resulting in various nervous disorders such as irregular muscle movements as in Parkinson's disease as well as depression.

The impulses sent from the stimulator device to the electrodes in the brain through the wires, serves to stabilize and normalize nerve signals sent to the brain.

If there are 12 chromosomes in an animal cell in the G 1 stage of the cell cycle, what is the diploid number of chromosomes for this organism?

Answers

Answer:

The gametes are haploid, having half the number of cells as compared to somatic cells. The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes

Explanation:

Hormones are chemical molecules produced by endocrine glands. One such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. Which two statements describe the probable reason for the function of the hormone? A)The cells in the heart have specific receptors that allow for the intake of hormones. B) The heart and the endocrine glands have the exact same types of cells. C)All cells make the same types of hormones. D)Thyroid hormones show their effect on the heart by means of specialized cells. E) Thyroid cells and cardiac cells have different DNA.

Answers

Answer:

i think option d is correct answer because it helps in the management of heart beat , blood pressure etc.

Which of the following statements is true?

-Diffusion describes the concentration gradient in a solution.

-Diffusion regulates which molecules can and can't pass through a plasma membrane.

-Diffusion is the movement of water across a selectively permeable membrane.

-Diffusion does not require energy and is therefore a form of passive transport.

Answers

Answer:

Diffusion is the movement of water across a selectively permeable membrane.

Explanation:

Hope it helps.

The statement which is true about diffusion is as follows:

Diffusion does not require energy and is therefore a form of passive transport.

Thus, the correct option is D.

What is Diffusion?

Diffusion may be defined as the movement of substances from a region of higher concentration gradient to a region of lower concentration gradient through a semipermeable membrane.

Diffusion not only facilitated the movement of water across a selectively permeable membrane but also other substances as well. Diffusion only regulates the movement of those molecules which can pass through a plasma membrane.

It is the means of movement of substances that do not require any form of energy. And thus, diffusion is significantly a form of passive transport.

Therefore, the correct option for this question is D.

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A circular double-stranded DNA molecule contains 4200 base pairs. In solution, DNA is in a B-form helix, with about 10.5 base pairs/turn. The DNA has 12 superhelical turns. What is its superhelix density

Answers

Answer:

The correct answer is - 3 × 10⁻²

Explanation:

first find LKo = length of BDNA/ 10.5 bp/turn

= 4200/10.5

= 400

now calculate Δ LK= LK - LKo

ΔLK = 412-400

ΔLK = 12

now, superhelix density  = ΔLK/LKo

⇒ 12/400 = 0.03

= 3×10⁻²

Thus, the correct answer is - 3 × 10⁻²

Lysosomes are responsible for

Answers

Answer: the digestion of macromolecules, old cell parts, and microorganisms.

Explanation:

Answer:

(in the explanation)

Explanation:

This is a membrane-bound cell/organelle that includes digestive enzymes. They are included in many cell processes. They decompose or break down excess and worn down cells. They can build up your immune systems and kill and virus or bacteria.

Probiotics help to reinforce the integrity of the gastrointestinal tract by forming a network of proteins that blocks the movement of pathogens through its lining. If the integrity of the GI tract lining is compromised, pathogens can move more easily into the blood. This condition of compromised integrity of the GI tract is called

Answers

Answer:

The correct answer is "leaky gut".

Explanation:

"Leaky gut", also known as "intestinal permeability", is a term used to describe a condition of the gut's mucosal lining at which it becomes permeable as a result of suffering from damage. This is a serious condition since undigested food particles, toxic waste products or pathogens can move more easily into the blood. This contributes to suffer from different diseases, which can become chronic if the condition gets unattended.

what happens when we eat a lots of fried food​

Answers

Answer:

Eating a lot of fried food can cause a greater risk of developing heart disease, chronic disease, and obesity.

What does swelling of the Lymph nodes indicate

Answers

Answer:

Swelling of the lymph nodes is a sign that they are being overworked.

Explanation:

Unnecessary waste could be building up in your lymph nodes and this can also signal that you may have an infection.

Hope this helped! :)

A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland?

Answers

Answer:

Explanation:

Based on this information it can be said that this formation between the islands and the mainlands will most likely cause an increase in gene flow between the bird populations. Since the islands and the mainland are now connected birds from both these two different habitats will begin mating and producing progeny, thus causing gene flow to increase between these species.

Answer:

An increase in gene flow between the birds population.

Explanation:

Three types of threats to biodiversity are:

habitat loss and fragmentation
the introduction of exotic, or non-native, species
overexploitation, or overharvesting

Determine the type of threat that each of the following statements describes.

a. Small rainforest remnants have less diversity than larger rainforest remnants.
b. Melaleuca trees from Australia displace native wetland vegetation in Florida.
c. Wild American ginseng populations have declined as a result of increased demand for the roots.
d. A wetland is drained to make room for a housing development.
e. Florida panthers were geographically cut off from other panthers about 100 years ago.
f. Cod are caught faster than they can reproduce.
g. South American rodents called nutria eat wetland plants and cause bank erosion in the United States,
h. Some fishing nets damage the seafloor.

Answers

(a) Habitat loss and fragmentation

(b) The introduction of exotic, non-native species.

(c) Overexploitation or over harvesting.

(d) Habitat loss and fragmentation.

(e) Habitat loss and fragmentation

(f) Over exploitation or over harvesting

(g) Introduction of exotic , or non native species

(h) Over exploitation or over harvesting.

mechanism of the formation of urine

Answers

Explanation:

Filtration, Reabsorption, Secretion: The Three Steps of Urine Formation. The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion.

. Some people have developed allergies to animal insulin. Explain why the immune system would be able to distinguish animal insulin from human insulin

Answers

Answer: Difference between animal and human insulin and/or not being properly purified.

Explanation:

Insulin is a hormone that regulates the metabolism of secreted by the β-islet of Langerhans cells of the pancreas. It that allows blood sugar, known as glucose, to pass into cells. Glucose comes from the food and drinks and it is the body's main source of energy. So, insulin plays a key role in maintaining proper blood glucose levels.

Animal insulin is produced by the pancreas of animals, usually cows and pigs. Then, the insulin is purified to reduce the chance of the insulin user developing a reaction to the insulin.

Each organism has its own genetical identity and any foreign particle is treated as an antigen. And, there is small chemical difference between insulin produced in animals and insulin produced in humans. That difference, caused by a different sequence of peptides, can be recognized by the immune system as something foreign and as such can be a threat to the body. And that would trigger an immune response. Also, the response can be because it hasn't been properly purified and contains other compounds or proteins that are also foreign.

The order Primates includes Group of answer choices monkeys, prosimians, humans and apes. only monkeys. only humans. only apes. only monkeys, apes and humans.

Answers

Answer:

monkeys, prosimians, humans and apes

Explanation:

The correct answer would be monkeys, prosimians, humans and apes.

Primate represents an order within the Mammalian class. The group consists of animals that fall into two sub-orders - the strepsirrhines which consist of lemurs, lorisoids, etc, and the haplorhines which consist of monkeys, apes, and humans.

Collectively, the apes and the monkeys are categorized as simians while all other animals primates are referred to as the prosimians.

Hence, monkey, prosimimians, humans, and apes tend to cover all the groups under the primate order.

Answer:

monkeys, prosimians, humans and apes

Explanation:

AMSCO

In a certain variety of lentils, one gene controls color: red is completely dominant to orange, while a second independent gene controls pattern: large spots are co-dominant with small dots. A dihybrid cross involving these two genes should result in:

Answers

Answer:

a phenotypic ratio 9:3:3:1  

Explanation:

one gene controls color: red (R) is completely dominant to orange (r) a second independent gene controls pattern: large spots (L) are co-dominant with small dots (l)A dihybrid cross involving these two genes

Cross:

Parental) RrLl   x   RrLl

Gametes) RL  Rl  rL  rl

                RL  Rl  rL  rl

Punnet Square)   RL         Rl         rL        rl

                RL     RRLL     RRLl    RrLL    RrLl

                Rl      RRLl      RRll      RrLL    Rrll

                rL      RrLL      RrLl      rrLL     rrLl

                rl       RrLl       Rrll        rrLl      rrll

F1) 9/16 R-L-, red and large spotted individuals

     3/16 R-ll, red and small dotted individuals

     3/16 rrL-, orange and large spotted individuals

    1/16 rrll, orange and small dotted individuals      

Note: The symbol "-" refers to either the dominant allele or the recessive one

     

Starting with the illuminator and ending with your eye, describe the path of light traveling through a microscope with a specimen on a slide.

Answers

Answer:

A) Light, originates from source

B) With the help of the condenser, it becomes focused onto the specimen on the slide

C) The light then enters the objective lens which magnifies the image.

D) The magnified image/light then passes through a series of mirrors and prisms made of glass and eventually entering the eyepiece

E) The eyepiece further magnified the image then throws it to be received by the eyes.

Cheers!

what is a part of interphase A. cytokinesis B. telophase C. anaphase D. s phase

Answers

Answer:

D

Explanation:

I did it on my own soci know it's the answer

In the context of interphase, the S phase is the specific part where DNA replication occurs, contributing to the overall process of cell division and ensuring the transmission of genetic material to new cells and the correct option is option D.

Interphase is the longest phase of the cell cycle, and it is divided into three main stages: G1 phase, S phase, and G2 phase. Among these stages, the S phase is specifically responsible for DNA replication. It is during the S phase that the cell's DNA is duplicated in order to prepare for cell division.

During the S phase, the DNA helix unwinds, and the two strands separate. Enzymes and proteins then work together to synthesize new complementary strands for each of the separated DNA strands. As a result, two identical copies of the DNA molecule are produced.

The S phase plays a crucial role in maintaining the genetic integrity of the cell. By accurately duplicating the DNA, the cell ensures that each daughter cell formed during cell division receives an identical set of genetic information. This is vital for the proper functioning and development of organisms.

Thus, the ideal selection is option D.

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Which of the following best describes how ACh changes the ion permeability of the sarcolemma?
A) ACh activates acetylcholinesterase.
B) ACh entry into the axon terminal causes neurotransmitter release.
C) ACh binds to receptors in the junctional folds.
D) ACh entry into the muscle fiber causes Ca2+ to be released by the sarcoplasmic reticulum.

Answers

Answer:

C) ACh binds to receptors in the junctional folds.

Explanation:

The statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).

The sarcolemma is the plasma membrane of the muscle cells.

Moreover, acetylcholine (ACh) is a neurotransmitter that is released by motor neurons during muscle contraction.

After release, ACh binds to specific (nicotinic) receptors in the sarcolemma at the neuromuscular junctions (i.e., junctional folds).

These receptors are also called chemical-gated and/or ligand-gated channels because they are known to modify the ion permeability of the sarcolemma.

In conclusion, the statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).

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An atom has a mass of 35 a neutron mass of 35 and an electron mass of 35. What is the estimated mass of the atom

Answers

Answer

The estimated mass of the atom is 70 amu...

Explanation

An atom has a proton mass of 35 and a neutron mass of 35 , Mass of an atom is equal to the sum of number of protons and number of neutrons .

In this case , number of protons p = 35 Number of neutron n = 35 So , the estimated mass of the atom will be :-

M 35 protons + 35 neutrons = 70 amu

hope this answer correct (^^)....

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