In the ancestry of Victoria and Albert there was no history of hemophilia, so it is unlikely that the mutation was in the royal family before Victoria. Which do you think is the most likely explanation for this from the scenarios below? Explain your reasoning. a. Spontaneous Mutation: The egg or sperm that produced Victoria has a newly mutated gene for hemophilia, making her a carrier.
b. Infidelity: Victoria is the product of infidelity between her mother and an unknown hemophiliac male, making her a carrier.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation: