it is B cells produce antibodies and T cells destroy infected cells
Answer:
include roots, stems, shoot buds, and leaves; they are not directly involved in sexual reproduction.
Answer:
The changes which can be reversed are called reversible changes. These are also called physical changes. Example- Melting of ice, Tearing of paper etc are physical or reversible changes.
Explanation:
<span>an animal whose mouth develops from a second opening in the early embryo, opposite to the initial opening blastopore of the rudimentary gut. Chordates and echinoderms are deuterostomes.</span>