9. DNA contains the base while RNA contains the base
instead.
10. Sex-linked traits appear more frequently in.
11.A Goat has 60 chromosomes in its body cells. What is the haploid number?

9: dna contains the base T while RNA contains U

Explanation:

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

every el niño cycle is different. every year.