Hibernation
Trending Questions
Q.
Distinguish between the folowing
(a) Hibernation and Aestivation
(b) Ectotherms and Endotherms
Q. Match the following.
- Flamingo
- Fish
- Humans
- Fungi
Q. Frog hibernate during
- Winter
- Spring
- Autumn
- Summer
Q. Match the following.
- Flamingo
- Fish
- Humans
- Fungi
Q. Assuming that an animal generates heat at a rate proportional to its volume and can radiate heat at a rate proportional to its body surface area, which of the following would be best at maintain its body temperature in a cold climate?
- Mouse
- Rabbit
- Bear
- Fox
Q. Life is present even below the sheet of ice in Antarctica because
- Water possesses high latent heat.
- Water is source of molecular oxygen to biosphere.
- Being bad conductor of heat, ice protects the water from freezing underneath.
- Water helps in synthesis as well as breaking up of complex molecules.
Q. Match the following.
- Flamingo
- Fish
- Humans
- Fungi
Q. 
How would beak length in the bird population change after another 200-year time span?
Read the passage and answer the following questions:
A population of birds (population A) on a remote, isolated island is studied to determine beak length. The resulting data are plotted in Figure 1.
Figure 1
Suppose that 200 years later, the beaks of the birds on the island were again measured (Population B). The data, when plotted, yielded a graph as in Figure 2.
Figure 2
How would beak length in the bird population change after another 200-year time span?
- The average beak length would return to 30 mm.
- The average beak length would shift to 40 mm.
- The average beak length would shift to 20 mm.
- The differences in beak length would be more pronounced.
- It is not possible to determine how beak length might change.
