The movement of molecules from a place where there is a greater/higherConcentration to an area where there is lesser/lower concentration is:

a. homeostasis
b. Osmosis
c. active transport
d. diffusion

Susan arnold is a 62 year old woman who has developed rheumatoid arthritis and is beginning to develop significant joint damage

Suppose a scientist measures the amount of dna per cell of a particular diploid species at various stages of meiosis. she finds that the meiotic cells contain 3.7 pg , 7.3 pg , or 14.6 pg of dna. match each stage of the cell cycle to the corresponding amount of dna contained within a cell at that stage.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?