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Biology 12 Chapter 15 Homeostasis - 3
1.
What is TRUE about negative feedback?
a) It has a destabilizing effect.
b) None of these.
c) It is less common.
d) It is responsible for amplification of change.
2.
Which animal bask in the sun?
a) Horned lizard.
b) Crocodiles.
c) Marine iguana.
d) Migratory birds.
3.
Which animal burrow when it is hot?
a) Crocodiles.
b) Horned lizard.
c) Migratory birds.
d) Marine iguana.
4.
Which hormone is released by thyroid gland?
a) ADP.
b) Osmolytes.
c) Thyroxin.
d) TSH.
5.
The maintenance of constant osmotic conditions is called?
a) Respiration .
b) Thermoregulation.
c) Homeostasis.
d) Osmoregulation.
6.
What are the animals called which have internal osmotic conditions different from the surroundings?
a) Homeoconformers.
b) Osmoconformers.
c) Thermoregulators.
d) Osmoregulators.
7.
What is the characteristic of osmoregulators?(a)
a) Hypotonic to environment.(c)
b) Hypertonic to environment.(d)
c) Isotonic to environment.
d) Both b and c.+(b)
8.
What are the animals called which have internal osmotic conditions according to the surroundings?
a) Osmoregulators.
b) Thermoregulators.
c) Homeoconformers.
d) Osmoconformers.
9.
What is the characteristic of Osmoconformers?
a) Hypotonic to environment.
b) Hypertonic to environment.
c) Isotonic to environment.
d) All of these.
10.
Which one is osmoregulators?
a) Elasmobranches.
b) Marine vertebrates.
c) Marine invertebrates.
d) Myxine.
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