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harkovskaia [24]
3 years ago
13

A geologist discovers a sample of fine-grained rock made up of very small crystals. Based on its physical appearance, what can t

he geologist conclude about the rock?
A. It formed from magma that cooled slowly.
B. It formed from the remains of living organisms.
C. It formed from materials produced by living organisms.
D. It formed from magma that cooled quickly.
Biology
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

D. It formed from magma that cooled quickly

Explanation:

From several experiments, geologists have come to terms with the fact that when magma cools rapidly, it does not give room for large and big sized crystals to form. Instead, tiny, little crystals would be formed.

For example, obsidian and most volcanic rocks.

When a magma has enough time to cool and solidify, we see very big crystals of minerals in them.

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A small number of birds arrive on an island from a neighboring larger island. About twice a year, one or two more birds from the
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Answer:

Hello. None of the answer options is correct, as the new arrivals delay adaptation to new food plants.

Explanation:

The arrival of new birds increases competition for food. This makes the birds that have just arrived have some difficulty in accessing food, as they will have to compete with the birds that are already on the island. This makes the novice birds look for food plants they already know, which delays their adaptation to feeding new plants they do not know.

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3 years ago
drag and drop anatomy 1. subdural space 2. third ventricle 3. fourth ventricle 4. lateral ventricle 5. foramen of magendie 6. pi
svp [43]

The various parts of the brain are:

  1. subdural space
  2. third ventricle
  3. fourth ventricle
  4. lateral ventricle
  5. foramen of magendie
  6. pia matter
  7. corpus callosum
  8. straight sinus
  9. arachnoid villa
  10. foramen of monroe
  11. dura matter
  12. skull - the protective covering of the brain
  13. subarachnoid space
  14. cerebral aqueduct
  15. choroid plexus
  16. arachnoid
  17. cerebellum
  18. cerebrum

<h3>What are the various parts of the brain?</h3>

The brain is the most important organ found in the body. The brain controls all the other processes occurring in the body.

The brain consists of cells called neurons which are interconnected to each other and which receive information from other parts of the body, processes it and sends out response signals.

The various parts of the brain are as follows:

  1. subdural space
  2. third ventricle
  3. fourth ventricle
  4. lateral ventricle
  5. foramen of magendie
  6. pia matter
  7. corpus callosum
  8. straight sinus
  9. arachnoid villa
  10. foramen of monroe
  11. dura matter
  12. skull - the protective covering of the brain
  13. subarachnoid space
  14. cerebral aqueduct
  15. choroid plexus
  16. arachnoid
  17. cerebellum
  18. cerebrum

In conclusion, the various parts of the brain function to make the brain work efficiently.

Learn more about parts of the brain at: brainly.com/question/1247675

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2 years ago
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Ira Lisetskai [31]

Answer:

B

Explanation:

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3 years ago
What adaptations allow deep sea creatures to survive in extreme environments essay?
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In hemoglobin, the transition from t state to r state (low to high affinity) is triggered by:_________
Elena L [17]

In hemoglobin, the transition from t state to r state (low to high affinity) is triggered by Bisphosphoglycerate (BPG)

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Learn more about  Bisphosphoglycerate (BPG) from here:brainly.com/question/8885734

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