Biology Answers

Which of the following features of a system is unlikely to lead to a stable homeostatic system?

c. Redundancy

a. Negative feedback

d. Complexity

b. Positive Feedback

Which of the following strategies would not help restore a high body temperature to normal?

b. Sweating

c. Flattening of skin hair

a. Non-Shivering thermogenesis

d. Redistribution of blood flow to the periphery

Which of the following statements regarding blood pressure is not true?

c. Blood pressure is regulated by the renin-angiotensin-aldosterone pathway.

b. Blood pressure varies throughout the cardiac cycle.

d. Blood pressure can be altered by adrenaline.

a. Blood pressure is constant throughout the body.

Which of the following statement about Homeostasis is incorrect________________

c. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment

a. There is a definite control system that regulates the homeostatic activities

b. Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment

d. All are correct

Which of the following statements best describes homeostasis?

b. dynamic equilibrium

a. Keeping the body in a fixed and unaltered state.

c. Maintaining a near-constant internal environment.

d. Altering the external environment to accommodate the body's needs

The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________________

a. Homeostasis

d. Thermoregulation

b. Hemostasis

c. Osmoregulation

A feedback mechanism regulates the action of the____________

a. Hormones

c. Cell division

d. None of the above

b. Lipids

In the case of low blood glucose concentration, the negative feedback is_________

a. Conversion of glucose into glycogen

c. to rest

b. to workout

d. conversion of glycogen to glucose

Which of the following statement is incorrect about Homeostasis______________

b. there is a definite control system regulating the homeostatic activities

d. all the above

a. because of this, the fluctuations of the internal environment are of extremely narrow range as compared to that of the external environment

c. homeostatic mechanisms keep the internal environment fixed despite wide changesin the external environment

The protection of the internal environment from the harms of the external environment is termed as

d. nerve impulse

b. Homeostasis

a. thermoregulation

c. Osmoregulation

The regulation of the solute and balance of water is done by

d. diffusoregulation

b. Thermoregulation

c. Osmoregulation

a. homeostasis

The maintenance of internal temperature within a tolerable range is called

b. Thermoregulation

a. osmoregulation

d. none of the others

c. homeostasis

The components of the internal environment are

d. all of the above

c. Temperature

b. Solutes

a. water

Which of the following statements best describes homeostasis?

d. Altering the external environment to accommodate the body's needs.

c. Maintaining a near-constant internal environment.

a. Keeping the body in a fixed and unaltered state.

b. Dynamic equilibrium.

These two questions about anesthetizing a rabbit

1.How does the coagulation time of the test tube with heparin change? Why?

2. How does the coagulation time of the test tube with Lung tissue immersion liquid change

A cell has been exposed to a certain lethal chemical that results in the translation machinery to start reading the transcripts in either the 5’ or 3’ end. Which of the properties of the genetic code is affected after this chemical exposure?

These two questions about anesthetizing a rabbit

1.How does the coagulation time of the test tube with heparin change? Why?

2. How does the coagulation time of the test tube with Lung tissue immersion liquid change

Can anyone explain to me what is a capstone research? Is it supposed to be experimental? Do you know any capstone research papers which I can read?

explain how plants and animals cell are suited to performing their function

Upon acquiring various amino acid units in your laboratory, you are able to duplicate the machinery that results in protein synthesis. Which of the following would you not expect during the polymerization of amino acids into proteins?