Considering the surface area-to-volume ratio, what structure does surface area represent? a) cytoplasmb) mitochondriac) erd) plasma membrane

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

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