It will cause vasodilation of blood vessels in the brain.
CO2 is one of the metabolic end products that can alter the
tone of the blood vessels in the brain. High CO2 levels cause vasodilation,
which may cause headache, whereas low CO2 levels cause vasoconstriction, which
may cause lightheadedness. The statements included in the other options are
incorrect effects.
Answer:
<em>The correct option is C) A mouse and a human have about the same number of genes.</em>
Explanation:
The technique of genetic sequencing has enable us to learn and compare thee genomes of different organisms. Genome sequencing proves that the genome of the humans and mice are about 99 percent similar. The number of genes in the mouse genome and the genome of humans is almost equal.
Other options, like option A, cannot be true because many complex organisms have fewer chromosomes than other organisms. For example, there are many simple plants which have more number of chromosomes than the complex humans.
I think that the statement given above is true, Harmful environmental agents cause an average of 4-5 percent of birth defects. <span>About 10 </span>percent of birth defects<span> are </span>caused<span> by </span>environmental factors<span> such as infection, radiation, and drugs. Hope this answers the question. Have a nice day.</span>
<span>Homologue </span>pairs separate during a first round of cell division, called meiosis<span> I. Sister chromatids separate during a second round, called </span>meiosis<span> II. ... In </span>each round of division, cells go through four stages: pro-phase, meta phase, ana phase, and telophase.
im learning this in science so...
