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Arturiano [62]
2 years ago
8

Which of the following has a primary role in attacking cancer cells and protecting against some pathogens by killing harmful cel

ls on contact
Biology
2 answers:
Oliga [24]2 years ago
7 0
B memory cells is very wrong. The answer could be Cytotoxic T cell or natural killer cell
jolli1 [7]2 years ago
4 0
The answer is memory B cell
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Which of the following structures consists mainly of white matter?
Otrada [13]

Answer:

The corpus callosum

Explanation:

The corpus callosum is the largest white matter structure in the brain. It is located beneath the cerebral cortex and it connects the left and right cerebral hemispheres thus enabling communication between them. The corpus callosum is a bundle of nerve fibers, (axon projections) which transmits neural signals.

7 0
3 years ago
FOR 33 POINTS seismic belts are relatively narrow and tend to follow tectonic plate boundaries true or false
IRINA_888 [86]
True the tend to follow bounderies.
5 0
3 years ago
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What is common to both prokaryotic and eukaryotic cell division?
castortr0y [4]

Answer:

both are made up of cells

DNA (genetic material )

plasma membrane

cytoplasm

these are the cellular organelles which both organism share

Explanation:

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3 years ago
How are human beings and chimpanzees phylogenetically related?
Tema [17]

Answer:

I would say that its they are descendant of a common ancestor. DNA shows that our species and chimpanzees diverged from a common ancestor species that lived between 8 and 6 million years ago.

Explanation:

6 0
3 years ago
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Beaked whales feed at various depths, but they defecate at the ocean's surface. nitrogen-rich whale feces deposited in surface w
IgorC [24]
I think if the whale population decreased the surface fish populations would decline due to reduced populations of algae. This can be simply explained by the fact that, if the whale population is decreased, it means that the nitrogen rich feces that is supply nutrients to the algae would also decrease and therefore decrease the population of the algae and as a result the population of  of the surface fish  would also decline. 
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3 years ago
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