Which observation supports the statement that birds are reptilelike animals?

a.) bird's front limbs usually do not have useful claws
b.) bird's have only two legs
c.) bird's feet are covered with scaly skin
d.) birds generate their own body heat
I think it's c.!

You are correct! The observation that supports the statement that birds are reptile-like animals is c.) bird's feet are covered with scaly skin.

To determine which observation supports the statement that birds are reptile-like animals, let's analyze each option:

a.) Birds' front limbs usually do not have useful claws - While it is true that some birds have evolved reduced or non-functional claws on their front limbs, this observation is not exclusive to reptiles. Many bird species have uniquely adapted beaks instead of claws, which differentiate them from reptiles.

b.) Birds have only two legs - This observation is not specific to reptiles either, as many animals, such as mammals, also have two legs. Moreover, reptiles can have various leg configurations, such as snakes with no legs, and lizards and turtles with four legs.

c.) Birds' feet are covered with scaly skin - This observation is the best choice from the given options. Reptiles are known for having scaly skin, and birds also possess scales on their feet. This similarity indicates a shared characteristic between birds and reptiles.

d.) Birds generate their own body heat - While it is true that birds are endothermic (warm-blooded) and can regulate their body temperature, this characteristic is not exclusive to reptiles. Mammals also generate their own body heat, making it a shared feature between birds and mammals.

Based on the explanations above, option c - bird's feet are covered with scaly skin - is the most appropriate observation supporting the statement that birds are reptile-like animals.