Flatworms possess excretory organs known as nephridia. Specifically as annelids, flatworms possess a variant known as metanephridia.
Secondary structures are dependent upon hydrogen bonding. The two main types of secondary structure are the a-helix and the B-sheet. The a-helix is a right-handed coiled strand.
The legs of an insect are used to taste things walk jump and climb.
wings are for flying and sometimes camouflage
The mouth parts are for piercing and sucking their prey
vascular transports water, distributtes food, and found in the roots, stems, and leaves. <span> vascular plants grow faster and taller.
</span><span>nonvascular plants do not grow taller like the mosses.</span>
