Evolutionary biology is the subfield of biology that studies the evolutionary processes that produced the diversity of life on Earth, starting from a single common ancestor.
Crustaceans Insects <span>Arachnids belongs to phylum arthopoda and insects have both wings and antennae whereas crustaciens like crab shrimps have no wings but antennae and archanids have none of them
</span>so correct option for statment
<span>The species of which of these groups show neither wings nor antennae is
C
hope it helps</span>
Clonal selection of lymphocytes leads to the development of Effector cells and Memory Cells.
Oxygen has a negative ion this means when it reacts ionically it gains two electrons in a water molecule they have covalent bonds (shared electrons) this mean the two hydrogenated have shared there electrons with oxygen so (gained two negative electrons) making it negative
Answer:
third choice is the right answer