Question: Why is the countercurrent system of flow important for fishes?
Explanation and answer: Fishes use a design called 'countercurrent oxygen exchange' to maximize the amount of oxygen that their blood can pick up. They achieve this by maximizing the amount of time their blood is exposed to water that has a higher oxygen level, even as the blood takes on more oxygen.
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Answer:
The answer easier
Explanation:
It's the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms. Typically, a dichotomous key for identifying a particular type of object consists of a specific series of questions. When one question is answered, the key directs the user as to what question to ask next. Dichotomous keys typically stress identifying species by their scientific name, as each individual species has a unique scientific name.
Answer:
A,C,D are the correct answers
Explanation:
<span>Transcriptionm: RNA is transcribed from DNA and floats into the cytoplasm
Translation: <span>mRNA is translated in a ribosome into a peptide</span></span>
