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liq [111]
3 years ago
12

What type of virus attacks neurons in the nervous system, causing paralysis and other neurological issues?(1 point)

Biology
1 answer:
Vikki [24]3 years ago
4 0

Answer:

B. Polio

Explanation:

The poliovirus causes brain damage (resulting in paralysis) and muscle degeneration. You're welcome.

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Which statement below about cells is true?
Brrunno [24]
The answer is C because it just is
4 0
3 years ago
Explain why algae swim up from the bottom of a pond during an afternoon
Effectus [21]

Explanation:

What happens during daytime is, oxygen that gets trapped between filaments of algae, moves them to the surface  and during night as O2 is not produced, they slowly sink to lower depths, and you don't see them

6 0
3 years ago
In the block to polyspermy, entry of the sperm's contents causes ________ levels in the oocyte's cytoplasm to rise, triggering t
crimeas [40]

In the block to polyspermy, entry of the sperm's contents causes calcium ion levels in the oocyte's cytoplasm to rise, triggering the cortical reaction.

In biology, polyspermy describes the fertilization of an egg by more than one sperm. Diploid organisms normally contain two copies of each chromosome, one from each parent.

The cell resulting from polyspermy, on the other hand, contains three or more copies of each chromosome—one from the egg and one each from multiple sperm. Usually, the result is an unviable zygote. This may occur because sperm are too efficient at reaching and fertilizing eggs due to the selective pressures of sperm competition.

The cortical reaction is a calcium-dependent exocytotic process in which the content of secretory granules is released into the perivitellin space immediately after fertilization, which serves to prevent polyspermic fertilization.

Learn more about  polyspermy here : brainly.com/question/4537960

#SPJ4

8 0
1 year ago
In dim light the iris ___ and the pupil gets bigger in bright light, the iris expands and the pupil gets smaller. ​
Orlov [11]

Explanation:

in dim light the iris contract ,the the pupils widens to allow more light to enter the eye,in bright light the iris relaxes and size of pupil becomes smaller to reduce amount of light entering the eye. NOTE: the muscle do not expand they either contract and relaxes

6 0
3 years ago
Balance the following ecosystem.<br> 100 50 10<br> bushes zebras lions
AVprozaik [17]

Answer:

Im pretty sure the correct answer would be the way it is listed.

100 Bushes, 50 Zebras, and 10 Lions.

Explanation:

Only 10 lions because they are at the top of the food chain, and 100 bushes because they are at the bottom.  

I hope this helps :)

4 0
3 years ago
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