False.
There are several good mutations that have ensured the survival of species. Typically helpful mutations help the creature adapt to its environment or protect itself from predators.
I hope this helps! :)
Well, the system for human reproduction is called just this: human reproductive system. The male and female reproductive systems are different; and male consists most importantly of penis and testicles, which further have their own parts.
The female system is composed mostly of the uterus, (including the vagina, which leads to the uterus, and the ovaries.
The spinal cord is associated with 31 pairs of spinal nerves. Spinal nerves are considered mixed nerves because they contain both motor and sensory axons.
I believe the condition is infestation. Infestation is the state of being invaded or overrun by pests or parasites. It can also refer to the actual organisms living on or within a host. For example being invaded by ectoparasites such as lice, mites, or ticks. It may also refer to the presence of an unusually large number of insects or animals in a place, typically so as to cause damage or disease.
I just answered your other post with these questions. (:
