Answer:
1. Body cells divide because of
a) growth: cells divide in order to grow and get larger
b) replace: almost millions of cells die each day. To replace those cells the body cells divide
c) reproduce: body cells divide in order to reproduce more cells
2. Mitosis: the type of cell division in which two daughter cells each having the same number and kind of chromosomes arise from a single parent cell.
3. Meiosis: the type of cell division that results in four daughter cells each with half number of chromosomes of parent cells as in the production of gametes(sex cells) and plant spores .
Answer:
the answer is this shift in temperature is happening more quickly
Explanation:
i just got the question right
Answer:
Examples include rabbits, bacteria, salmon, plants such as weeds and grasses, etc. Many insects are r-selected. For example, ants can be considered r-selected. Plants such as dandelions are another good example of an r-selected species.
Answer:
B. Case-Control
Explanation:
A case-control is a study that compares a group with an outcome of interest (cases) with a group who do not have the outcome (controls). This study aims to looks back retrospectively to compare how frequently the exposure to a risk factor is present in each group and with that to determine the relationship between that risk factor and the outcome.
So in this case, the cases are children with pervasive development disorder and the control is those without the disorders.
These studies are normally observational because no intervention is attempted.
Im pretty sure its hypothesis
