Answer:
a. an organism that has two different alleles for a trait
b. possible genotypes for the offspring
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I guess it is aluminium in cationic form
Answer: I think number 2 b
Explanation:
We need blood because it carries oxygen and helps us sustain life. The organ that pushes blood through the body is the heart.
Answer:
I think humans and whales are closely related on the evolutionary tree because they are both mammals and both have endoskeleton
