Many frogs are sit-and-wait predators-, they spend most of their time sitting st

Question

Many frogs are sit-and-wait predators-, they spend most of their time sitting still, and then leap to catch prey as it passes by. Some lizards are active foragers; they spend most of their day roaming the ground in search of prey. How do the leg muscles of a sit-and-wait predator (like a frog) differ from the leg muscles of an active forager (like a lizard)? (a) Describe how the two differ with respect to muscle fiber types, fatigability, and density of mitochondria, myoglobin, and capillaries. (b) Relate these structural differences to functional differences in the animals' respective foraging strategies.

Explanation / Answer

a)Frogs have long and powerful jumping legs .The legs have spring bones .They have one hind legs.While the lizard has two hind legs.The frog can get fatigues more due to only one leg while lizard does not get fatigued easilt.The frogs can crawl.

b)The differences is in the number of legs and the functions.The frogs do not have to move much so they have spring bones to crawl slowly.While lizards have to move ahead very fast they have 2 hind flexible legs.

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