Answer:
carry thousands of genes
Explanation:
Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. Some traits are caused by mutated genes that are inherited or that are the result of a new gene mutation.
Experimentation makes it possible for researchers to isolate cause and effect by allowing the researchers to manipulate one factor while controlling the other factors. This is achieved by creating two groups, subjects are put in these groups randomly in order to reduce experimental biases.
The two groups are the experimental group and the control group. The subjects in the experimental group will be exposed to treatment while the subjects in the control group will not be exposed to the treatment.
Answer:
vv gc
Explanation:
fcgbxdj. gvgv. vv vb. bb. vgfc bhg. hhfrgv vhhcv hgg vhuv. kkhv njgf. jgc. hhfc bhgvvhhc.
Answer:
5. It is a sudden movement of the earth's crust caused by the release of stress acccumulated along geologic faults or by volcanic activity:=Earthquake