Answer:

point mutation, change within a gene in which one base pair in the DNA sequence is altered. Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point mutations
Heat is one of the processes in which energy is lost.
Metabolic Activity is also a reason why energy is lost through each trophic level.
I hope that this helped you out hun :)
B. producer because most autotrophs are green plants use light for energy.
If both parents have type o, the child will also have type o, if parents are both type O the children will only inherit type O since type A and B are dominant over type O
Phloem transports glucose to the plant, and stomata release oxygen