MCQ
A terrestrial animals must be able to
- AActively pump salts out through the skin
- BExcrete large amounts of salts in urine
- CExcrete large amounts of water in urine
- ✓Conserve water
So excretion of uric acid is of greater advantage to land animals which have limited access to water. So uricotelism is an adaptation to terrestrial mode of life.
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$(a)$ $'H'$ zone disappears
$(b)$ $'A'$ band widens
$(c)$ $'I'$ band reduces in width
$(d)$ Myosine hydrolyzes $ATP,$ releasing the $ADP$ and $\mathrm{Pi}$
$(e)$ $Z-$lines attached to actins are pulled inwards Choose the correct answer from the options given below.
$(i)$ is released by sympathetic fibers
$(ii)$ is released by parasympathetic fibers
$(iii)$ increases the heart rate
$(iv)$ decreases blood pressure.
Which of the above statements are correct ?