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marissa [1.9K]
3 years ago
5

Which muscle extends the fingers?

Biology
1 answer:
weeeeeb [17]3 years ago
5 0

Answer:

c. extensor digitorum

Explanation:

the extensor digitorum communis extends the phalanges, then the wrist, and finally the elbow. It tends to separate the fingers as it extends them. In the fingers, the extensor digitorum acts principally on the proximal phalanges, acting to extend the metacarpophalangeal joint.

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Answer:

If  two similar looking species are able to produce fertile and viable offspring, then they belong to the same species.

Explanation:

According to the biological species concept , organisms are said to be of same species if they are able to interbreed and produce fertile and viable offspring.  

In case if two species are closely related on the basis of external features, then they must be allowed to mate. The offspring produced in the first generation mating must be allowed to mate again. If in the second generation offspring are produced, then it shall prove that the two similar looking organisms are able to produce viable and fertile offspring thereby establishing the fact that they belong to same species.  

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Explain how two or more of your body systems work together to perform a task<br> such as running.
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Answer:

cardiovascular and respiratory systems

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2 years ago
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Cecil is sexually attracted to his middle-school English teacher. He doesn’t act on his feelings however, because he realizes th
Alex777 [14]

Answer:

Ego

Explanation:

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The id is the instinctive and unconscious part of the personality which responds directly to urges, needs and desires. The id operates on the pleasure principle that every wishful impulse should be satiated instantly regardless of the resulting effect.

The ego is the part that mediates between the unreasonable id and societal beliefs. It is the reasoning and decision-making component of the psyche.

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In this scenario involving Cecil, the id part of his personality is responsible for the sexual attraction to his English teacher but the ego part of his personality is making him realize that is socially unreasonable for his teacher to respond to his sexual advances. His ego, which operates with the reality principle is restraining him from acting from his feelings in consideration of social realities.

Therefore, his ego is restraining him from expressing his feelings of sexual attraction (Id) considering societal consequences.

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3 years ago
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Organs or skeletal elements of animals and organisms
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Answer: Alzheimer's disease causes proteins in the brain to become improperly folded.

Explanation:

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6 0
3 years ago
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