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Naily [24]
3 years ago
10

If the concept of evolution is defined as a scientific theory, what must be true about the concept of evolution?

Biology
1 answer:
Brrunno [24]3 years ago
3 0

Answer:

Change occurs in the heredity characteristic of living organism over time.

Explanation:

Change occurs in the heritable characteristics of living organisms with the passage of time is known as evolution. Evolution consist of three basic principles which are variation, heredity, and differential fitness. The organisms evolved with the passage of time due to change in the environmental conditions which able them to survive in that harsh climatic conditions and those which is not evolved can't survive and in the end extinction occur.

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VikaD [51]
Glycolysis is the metabolism of glucose into pyruvate and ATP. It occurs in all organisms and its steps are independent of molecular oxygen.
Therefore, all of the statements apply except "happens only in animal cells"
5 0
3 years ago
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Which of the following mechanisms is used by gram-negative bacteria to cross the blood-brain barrier?
NISA [10]

Answer:

Which of the following mechanisms is used by gram-negative bacteria to cross the blood-brain barrier? D) Inducing TNF

Explanation:

The blood brain barrier is a barrier formed by brain microvascular endothelial cells, astrocytes and pericytes. Pathogens can cross this barrier by using different mechanisms. The Tumor Necrosis Factor (TNF) is the way gram-negative bacteria cross this mentioned blood-brain barrier.

3 0
3 years ago
How are ore minerals related to the economy of a country?
VMariaS [17]

Answer:

well it realtes because those are natural resourses other countries might need so they can sell there ore minerals.

Explanation:

5 0
4 years ago
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Which of the following are NOT functions of the spinal cord?
maksim [4K]

Answer:

Reflexes are not a function of the spinal cord.

Explanation:

The spinal cord is part of the central nervous system and is made up of neurons that go along it (from the end of the brain stem almost to the bottom of the spine).

The spinal cord receives incoming messages from the peripheral nervous system (including the sensory neurons) and pass on messages from the brain to efferent neurons (motor neurons at muscles).

The spinal cord contributes to learning as it passes on the info received from sensory neurons (that there is an obstacle in the path) to the brain and passes on the response from the brain to the muscles (to lift the foot up higher).

The spinal cord is essential for integration as it passes on sensory information  to the brain to determine motor output.

Reflexes are when sensory information is quickly sent straight to motor neurons to move. It does not need to go to the brain (hence does not need to go to the spinal cord) for the reaction as it would be too slow. This is seen when someone who is paraplegic (paralysed at lower torso) can still move their leg in response to the doctor tapping their knee even when they cannot forcibly move their legs.

Therefore reflexes are not a function of the spinal cord.

4 0
3 years ago
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How do you use a codon chart?
aniked [119]
What?? For what class egg
6 0
3 years ago
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