Answer:
1. hypothalamus, pituitary. 2. The central nervous system, The peripheral nervous system. 3. A, B, AB and O.
Explanation:
1. Air enters the nostrils.
2. Air passes from the trachea to the bronchi
3. Air diffuses from the alveoli to the blood cells.
4. Oxygen enters the blood cells.
5. Blood transports oxygen to other cells.
Answer:
The correct answer is B)
Explanation:
According to discovering made in relation to evolution, the Australopithecus Africanus (discovered in 1924), the Australopithecus Garhi (discovered in 1990), and the Homo Habilis (discovered in 1960) all shared the same period - 2.5-1.0 MYA.
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For the answer to the question above, I believe the answer to your question is <span>Insertions, but not deletions can change the codon reading frame.
Mutations can be useful to the organism. That is the most accurate among the given choices.</span>
revised: The correct options are:
-Mutagens and meiosis are two sources of mutation.
-A single-base insertion is usually more harmful than a single-base point mutation.
-Mutations can be useful to the organism.
