The concept of natural selection is a mechanism of evolution where environmental pressures select for phenotypes that exist in populations based on genetic variation. which process below would not contribute to the genetic variation in a population of mice?
a) mitotic growth
b) sexual reproduction
c) mutations resulting from errors in dna synthesis
d) crossing over of homologous chromosomes during meiosis

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.