Scientists can determine relatedness among organisms by comparing partial amino acid sequences. The table shows four partial amino acid sequences from four organisms.
Exhibit
Partial Amino Acid Sequence

Which organism is the LEAST related to the other three organisms?
A Organism 1
B Organism 2
C Organism 3
D Organism 4

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

Which structure in the cardiovascular system connect arteries to veins?

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture