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7nadin3 [17]
3 years ago
6

Which word means "the history of life in the geological past as indicated by the imprints or remains of living things"?

Biology
1 answer:
Lunna [17]3 years ago
8 0

Fossil

Explanation:

Fossils are the imprints or remains of living things that tells us the history of life in the geological past.

Fossils can also be defined as the preserved remains of dead organisms that once lived in geologic time past.

  • Fossils can be body fossils which preserves part of the body of an organism usually the hard part.
  • They can be trace fossils which are the preserved prints of organisms.
  • They are usually used to trace the evolutionary history of an organism.
  • The tell us about the climatic and environmental conditions of organisms that once lived.

learn more:

fossils brainly.com/question/7382392

#learnwithBrainly

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identify the subcellular structure of the neuron that forms the basis for the transmission of nerve impulses. (2 points) describ
melisa1 [442]

The subcellular structures of neuron that forms the basis for transmission of nerve impulses are the synaptic vesicles.

What are the steps in impulse transmission between neurons?

  • The action potential or nerve impulse reaches the <u>axon</u> of neuron and depolarises the membrane.
  • Voltage gated Calcium channels open .
  • Arrival of action potential causes the synaptic vesicle to attach to presynaptic membrane.
  • Calcium influx triggers release of neurotransmitter.
  • This neurotransmitters bind to postsynaptic membrane and new impulses are created.

Synaptic vesicle under resting condition:

  1. The neurotransmitter molecules are stored in synaptic vesicles.
  2. If the neurotransmitter leak from the vesicles, they are destroyed by enzymes.
  3. During resting condition, they are placed randomly.
  4. When an impulse reaches the axon, vesicles are arranged in the presynaptic membrane.

Thus from the above we can conclude that, synaptic vesicles are the subcellular structures in transmission of nerve impulses and , under resting condition they are placed randomly.

To know more about transmission of nerve impulses :

brainly.com/question/840056

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1 year ago
How long does it take for the earth to revolve around the sun.
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The answer would be 365 days
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Dinosaurs became extinct hundreds of millions of years ago. Scientists have been trying to determine the cause of the extinction
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I’d say either A or B make the most sense but I’m more confident that it’s B rather than A.
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Which plant is often used as a soil conditioner? moss fern horsetail hornwort
Gekata [30.6K]
<h2>Answer </h2>

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<u>Explanation</u>

Moss is often used as a soil conditioner. The capacity of Sphagnum to keep damp creates the moss a common soil conditioner. A soil conditioner is a material manufactured from organic matter which assists to enhance the soil's characteristics, scoring slow-releasing nutrients. It has been simply used to kill any weed seeds. Mosses are small flowerless plants that typically develop in thick green clumps or mats usually in damp or dark areas.


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