Answer:
B cell membranes protect a cell,and cell walls do not
Answer: C
Explanation: This happens because RNA becomes double stranded when two self complementary region of a single strand form a hairpin like structure...
Genetics, diet, environmental factors, the way the body of the animal handles its surroundings and biological necessities such as oxygen nutrients etc.
The answer is A. I did the assignment
Sexual reproduction is a process involving the fusion of two gametes to form a zygote. Gametes are special reproductive cells produced by meiosis. It produces genetically dissimilar offspring. Offspring may inherit beneficial qualities from both parents and there is a greater genetic variation in the offspring, leading to species that are better adapted to changes in the environment.