10. a protein enters a cell. the outside of the cell has a higher concentration of that protein than the inside of the cell. did the protein enter through active transport or a passive transport process?

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.

How does the carbon cycle involve an exchange of carbon

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from