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AleksAgata [21]
3 years ago
6

Consider a single bacterium starting out under ideal conditions. Its generation time is 20 minutes. How many bacteria will there

be two hours later?
Biology
1 answer:
Colt1911 [192]3 years ago
3 0
There will be 6 bacteria 2 hours later.
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Which hormone is secreted during periods of stress and is related to increased risk of disease?
gulaghasi [49]

Stress is a condition that tends to disturb the equilibrium of the individual with the environment. There are hormonal changes which occur during stress and have their impact in the endocrine system.

Reaction to stress is associated with increased hormone secretions of several hormones such as glucocorticoids, growth hormone, prolactin and catecholamine. The elevated levels of these hormones increase the risk of infections and also decrease the innate immunity as well as increase the autoimmune responses.

There are endocrine disorders related with the increased hormone secretion during stress conditions such as psychosexual dwarfism, obesity, Grave’s disease and gonadal dysfunction. The effect of increased secretion of the hormones is increase in mobilization of energy and adaption of the individual to current circumstances.

Activation of the pituitary adrenal axis is an important and dominant response due to stress. On stimulation of the pituitary adrenal axis results in hypothalamic secretion of the CRF (corticotrophin-releasing factor) which further stimulates the pituitary to ACTH, 3-endorphin and 8-lipotropin.

During stress, the plasma levels of these hormones increase up to five times.

The stimulation of the pituitary adrenal axis is also associated with the release of hormone catecholamine. The increased level of catecholamine leads to increased skeletal muscle flow of blood increased cardiac output and glucose levels, bronchiolar dilation, cutaneous vasoconstriction etc.

Acute stress releases vasopressin rapidly from the Para ventricular nucleus of hypothalamus together with corticotrophin releasing hormone.

During stress there is also suppression of gonadotropins and gonadal steroidal hormones which disrupt the normal menstrual cycle and prolonged stress can also lead to impairment of reproductive functions.

Thyroid functions are down regulated during stress conditions. T3 and T4 levels decrease whenever there is any stress condition.

The growth hormone level increases due to physical stress and prolactin level may increase or decrease depending on the conditions of regulatory environment locally.

4 0
3 years ago
Trey and his dad went to a football game. They paid $69 per ticket and $12 on
fomenos
The answer is $10 because 160-150=10
7 0
3 years ago
Psychologists and psychiatrists do not both prescribe antidepressant drugs
scZoUnD [109]
<span>Psychiatrist is a qualified medical doctor with post postdoctoral degree in Psychiatry. He studies Pharmacology, medicines and has authority to prescribe Antidepressant drugs. Against that Psychologist is qualified to take care of patients psychology. He helps patient by offering extensive psychotherapy and reduces patient's mental and behavioral suffering but psychologist is not authorized to prescribed antidepressant drugs.</span>
7 0
3 years ago
In the same mouse species, a third unlinked gene (gene C/c) also has an epistatic effect on fur color. The presence of the domin
gizmo_the_mogwai [7]

Answer:

agouti - aaBbCc

solid color - AaBBCC

agouti black - AAbbCc

albino - AaBbcc/Aabbcc/AABBcc

Explanation: All the phenotypes that contain cc will be albinos, so they won't present any pigment deposition. Agouti black depends on the A gene to be homozygous and the B to be recessive, so the phenotype AAbbC_ is the correspondent. If A is not homozygous and B isn't recessive, we have agouti color. If B is homozygous and A recessive, we have a solid color.

5 0
3 years ago
What important function is happening in the S phase?
daser333 [38]

Answer:

The answer is D. Synthesizing DNA.

Explanation:

The synthesis (S) phase of the cell cycle is of critical importance to precisely replicating the genomic information encoded in the nucleus of the cell.

The major work of the S phase of the cell cycle is replicating the entire complement of DNA. To do this, the cell activates pre-replication complexes to make replication origins. These are simply areas of the DNA where replication will begin.

6 0
3 years ago
Read 2 more answers
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