A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and dissimilar body segments. A knowledgeable zoologist should predict that the adults of this species would also feature:.
A. a sessile lifestyle
B. a mantle cavity
C. a hemocoel
D. the same number of appendages on each body segment

Which could be a pathway of food through an ecosystem

Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.