Skin. hair. nails. hope these helped!
It is an inference that
<span> there are tracks from three different animals in the rock.</span>
Answer: A. They breath in oxygen gas for cellular respiration.
Explanation:
All the options are true except the last one !
because in our body our primary carbohydrates source is our fat !
ya primary sugar is carbohydrates
and is most readily available also !
so all are ans except last because some macromolecules are larger than carbohydrates !!!