1.An individual was in an accident, which caused bleeding; which in turn cause a

Question

1.An individual was in an accident, which caused bleeding; which in turn cause a drop in blood pressure. His body's response to this was to initiate mechanisms to try to increase his blood pressure. This is an example of

A.feedforward

B.positive feedback

C.negative feedback

D.none of the above

2.An individual was in an accident, which caused bleeding; which in turn cause a drop in blood pressure. His body's response to this was to initiate mechanisms to try to increase his blood pressure. This is an example of

A.feedforward

B.positive feedback

C.negative feedback

D.none of the above

3.If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?

A.54

B.27

C.100

D.108

4.Atoms that vary in the number of neutrons found in their nuclei are called [math] ext{____} [/math].

A.ions

B.neutrons

C.neutral atoms

D.isotopes

5.

Which connective tissue is the storage site for lipids and helps regulate body temperature by providing insulation?

A.Blood

B.Adipose

C.Areolar

D.Dense fibrous

6.Which tissue lines the digestive tract, blood vessels, and the surface of the skin?

A.Epithelial

B.Connective

C.Muscle

D.Nervous

Explanation / Answer

It is a negative feedback control.it is a reaction that causes decrease in function and occurs in response to some kind of stimulus.it maintains homeostasis. hi

3,The mass no is sum of protons and neutrons where as atomic no is the no of protons.so no of neutrons can be obtained by subtracting atomic no(54) from the mass no(108).

No of neutrons of xenon=mass no-atomic no=108-54=54

4,atoms that vary in no of neutrons are called Isotopes

5,Adipose tissue is the storage site for lipids

6,Epithelial tissue lines the digestive system,skin,blood vessels

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