I think the answer is D :) ........
Answer:
effererent neurons signal muscles to contract
I am not thinking of a creature but of a tree which is the gingko tree which was in existence back 200 million years ago and there is one on a street where we lived in Vancouver BC and they grow in various parts of the world still. The coelocanth is a prehistoric fish which still lives in the sea also. I think that evolutionists would view such living 'fossils' as proof that these organisms were so well adapted to a wide range of environments or were able to find environments that they originally thrived in that they could survive so long. Also, probably the longer they survived changed conditions the tougher they would get. A creationist would say aha that shows that species don't change and evolve which of course would deny the overwhelming evidence of the change in species through time such as amongst man's ancestors.
Since color blindness is a sex-linked recessive genetic disorder, it is carried by a X chromosome. Males (XY) are affected if they get the affected X from their mother, since males only have one X, and it is therefore always expressed. Females (XX), however, get one X from their mother and the other from their father. So both parents have to pass a color blind X to be affected (both alleles, by the definition of recessive).
Even though the mother is not affected, she's carrying it because her father was color blind. And the father is not affected. However, in Turner's Syndrome, one X is destroyed after fertilization, so the other X is the daughter's primary (only remaining) X. Note: Turners only affects females. Therefore, this is a rare situation in which a daughter gets affected by an X-linked recessive condition.
