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Blizzard [7]
4 years ago
10

What caused the mass extinction 65 million years ago that caused 75% of all species of plants and animals disappeared within a f

ew million years?
Biology
1 answer:
slega [8]4 years ago
8 0

Answer:

An asteroid impact.

Explanation:

An asteroid impact is considered to have tossed rubble across the earth, killing off many species of plants and animals, 65 million years ago. Volcanic activity is involved in at least four mass extinctions, whereas an asteroid in just one.

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Which of the following is the correct term for a small hole in a seed’s outer layer, allowing water and nutrients access to the
Pavel [41]
<h2>Answer:</h2>

The correct option is B which is micropyle.

<h3>Explanation:</h3>
  • Generally micropyle is known as the opening in the ovule or egg from which sperm enters the egg.
  • But at the time of germination it is used to absorb water and nutrients.
  • It is the micropyle from which the root emerges from the seed.
5 0
4 years ago
The cell contains a number of impermeable molecules that carry negative charges including dna and proteins. If researchers remov
AVprozaik [17]

<u>The resting </u><u>membrane</u><u> potential would become </u><u>more positive</u><u> because researchers are taking negatively charged molecules out of the cell.</u>

Which methods were used to record the resting membrane potential and action potential of the squid axon choose all that apply ?

  • The squid axon's action potential and resting membrane potential were captured using the following experimental strategy.
  • Using a recording microelectrode inside the cell that is connected to a second electrode outside the cell .

What is cell membrane ?

  • All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.
    A semipermeable lipid bilayer makes up the cell membrane.
  • The movement of materials into and out of the cell is controlled by the cell membrane.

What are the functions of a cell membrane?

  • The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out .
  • second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.

Learn more about cell membrane

brainly.com/question/13524386

#SPJ4

4 0
2 years ago
Which are two factors that affect water quality?
zalisa [80]

Answer:

Sedimentation.

Runoff.

Explanation:

8 0
3 years ago
What topic should I do for my science project?? PLease answer this would be a quick, easy 10 points
grigory [225]
About. Biology? Topics?
5 0
3 years ago
Read 2 more answers
Is a banana a fruit berry or vegetable​
Jobisdone [24]

Answer:

Raspberries are Not. It turns out berry is actually a botanical term, not a common English one. It turns out that blackberries, mulberries, and raspberries are not berries at all, but bananas, pumpkins, avocados and cucumbers are.

Explanation:

hope it helps

8 0
3 years ago
Read 2 more answers
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