Which best describes the function of the cell wall in cells?
a.
supports the frame of a cell
b.
maintains the cell's nuclear structure
c.
modifies sugar into usable energy
d.
moves materials within the cell

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

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.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.