D. Because experimentation includes a control group. also, independent and dependent variables are part of an experiment they arent a type of research
Answer:
impossible without the motel
Explanation:
Viruses can multiply very quickly, and so they can go through natural selection at a much quicker rate, allowing certain vaccine resistant mutations to take over a population.
Answer:
- 1) Somewhere it billion years ago it was considered that there were no air , no earth , no sky , no sun , not even light . The universe was a highly dense and infinitesimally small lump . Suddenly,There was a big explosion.The"Big Bang ".And then was light . That probably was the beginning____ The beginning of matter,The beginning of light and the time !!.
- 2) The big crunch is a hypothetical scenario for the ultimate fate of the universe.
<h2>Hope this helps u :)</h2><h2>Not cheated nor copied answer .</h2>
A cladogram is a diagram of branches that show the cladistic relationship between animal species. A node you can expect to find on the cladogram would be <span>Deuterostome development. Examples of deuterostomes are starfish and sea cucumbers.</span>