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oksian1 [2.3K]
3 years ago
12

What was the time frame?

Biology
1 answer:
Andrew [12]3 years ago
3 0

Answer:

4.6 to 4 Billion Years Ago

Explanation:

According to the researchs and studies, the earth formed about 4.54 billion years ago and the oldest known living organism date to around 3-3.5 billion years ago which are the first bacteria that formed in the water.

I hope this answer helps.

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Metamorphic rocks that don’t have layers
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Answer;

-Non-foliated metamorphic rocks

-Metamorphic rocks that don’t have layers are called non-foliated metamorphic rocks.

Explanation;

-Metamorphic rocks are rocks that go through heat and pressure and change form. They can be formed by pressures deep inside the Earth, by tectonic processes such as continental collisions, or when they are heated up by an intrusion of hot molten rock called magma from the Earth's interior.

-Foliated metamorphic rocks have a layered or banded appearance that is produced by exposure to heat and directed pressure, they include rocks such as gneiss, phyllite, schist, and slate.

-On the other hand,Non-foliated metamorphic rocks do not have a layered or banded appearance, they include rocks such as hornfels, marble, quartzite, and novaculite.

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4 years ago
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The term demographic transition refers to ________.
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The theory regarding the transition occurring in a population in a country or a region.
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If you had to slide a heavy bot across a floor, how would friction affect the amount of work you had to do on the box in order t
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Friction would cause the box to be harder to push
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List 5 different carrer pathways someone who studies Plant Science/ Horticulture might take. WILL MARK BRAINLIEST​
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Answer:other dude is correct gimme brainlest

Explanation:

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if you were to watch an individual neurotransmitter molecule just after it was released what would happen to it
Olenka [21]

Neurotransmitter leaves the presynaptic cell by exocytosis. It is released in the synaptic space, and moves to the postsynaptic membrane to meet its receptor. When binding occurs, it triggers a response in the new cell.

-----------------------------------------

Every neuron forms connections with another cell.  

When a presynaptic cell sends information, a neurotransmitter is released.  

After the exocytosis event, this chemical substance travels through the synaptic space forward to the other cell. Once there, it binds to its receptors in the postsynaptic membrane.  

When the joining occurs, the receptor acquires a channel shape. This change allows the ion transference that will make possible the modification of the action potential.  

This binding produces the excitatory postsynaptic potential -depolarization-.

A new action potential initiates in the postsynaptic cell and spreads to the rest of the membrane, depolarizing it.

If the communication between cells needs to stop, the neurotransmitter will be taken out from the synaptic space <em>instead of binding to its receptor. </em>

There are two mechanisms by which the neurotransmitter can be eliminated: by deactivation or reuptake.  

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Related link: brainly.com/question/14693514?referrer=searchResults

                     

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