2) This is a process in which water moves through a membrane, from an area of high concentration to an area of lower concentration.

Osmosis

Explanation:

Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.