<span>a. Acoelomates. Flatworm is a type of acoelomate animal; they have no body cavity or ceolom but they have </span>mesenchyme in their body cavity that surrounds the gut and organs in one solid body.
B ecosystems because that’s where intraspecific competition occurs
T pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
Protons and neutrons. The other guy is annoying I dislike people like him who answer questions and don’t even know it
