Answer:
B. is not manipulated and used for comparison
Explanation:A control group is merely a group placed on an experiment for comparing with the experimental group. The control group will receive no treatment and serves as a reference to measure the reactions of the subjects present in the group being tested.
The use of a control group is necessary for an experiment since the experiment has variables being tested and some other factor may arise in the carrying out of the experiment, that previously was not taken into account. It allows then to eliminate also non-essential variables.
Then researchers can make sure the hypothesis, remaining all variables the same for the tested groups will enable to measure the independent variable and see if this variable is to be held accountable for the results as the outcome of the research.
The process of separation of homologous chromosomes is during meiosis is referred to as disjunction. gametogenesis is production of gametes and it occurs in sex cells. disjunction occur during anaphase of meoisis I and in humans it results in separation of homologous chromosomes into two sets each containing 23 chromosomes. these chromosomes will eventually move to the opposite poles of the cell.
Primates have large brains (relative to body size) compared to other mammals, as well as an increased reliance on visual acuity at the expense of the sense of smell
The correct answer is the second choice, "Two identical prokaryotic cells."
Binary fission happens when bacterial cells copy chromosomes and split into two. It's most common in prokaryotic cells, but can happen in some eukaryotic cells.
<span>Stress can lead to many dangerous diseases and puts unnecessary pressures o your body</span>
