Aprimary oocyte residing in a primordial follicle becomes a secondary oocyte a primary oocyte residing in a primordial follicle becomes a secondary oocyte in the primary follicle in the vesicular follicle in the secondary follicle only if fertilized after ovulation

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn