Which life function involves changing the energy stored in food into a form that can be directly used by cells?
a) excretion
b) respiration
c) synthesis
d) transport

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12