Answer:
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
Answer:
Explanation:
If the investigator wishes to watch the movement of C. Elegans (a roundworm), then he should be using compound microscopes. These microscopes are light illuminates and image that can be perceived is a two dimensional. Using this would allow you to magnify to a certain level so you can view individual cells and even cells that are living and moving. Typically compound microscopes can magnify up to 1000 times magnification. It has two convex lenses which has short focal lengths to allow a much higher level of magnification as compared to a simple microscope. These lenses are called the ocular lens and the objective lens.
Answer:
c, The pointer lines up with the zero mark
Explanation:
if it lines up with the zero mark it means that you found an equal mass with the weights compared to the mass on the actual plate.
The number of genetically unique gametes that can be produced by an organism where 2n = 20 cell is 40.
The reason is that there are 20 cells in the organism, so there are 20 possible ways for them to arrange themselves.
For example, if you have two identical cells and a third cell that is not identical to either one, then the total number of potential arrangements is (3 + 1) = 4. This means that there are 24 viable arrangements for three cells to form a diploid organism with two sets of chromosomes.
However, if you have only two cells and no other cells, then there are only 10 viable arrangements: 2 identical and 8 different non-identical combinations.
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