I think its 2, but I'm not sure. I have the same question on my homework, but I don't know. I'm 82% sure its A.
Hope this helps:)
Answer:
Differentiate between tricuspid valve and bicuspid valve
<u><em>The tricuspid valve is positioned between the right atrium and right ventricle, whereas the bicuspid valve is located between the left atrium and left ventricle. Furthermore, the tricuspid valve has three cusps, whereas the bicuspid valve has only two. Valve that connects the heart's left atrium and left ventricle.</em></u>
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Explanation:
Answer:
They are genetically identical to the parents and only differ if a genetic mutation occurs.
Sexual reproduction involves two parents and produces offspring that are genetically unique.
The greater the genetic variation, the better change that an individual in the population have a favorable gene that can help survival. Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population.
Explanation:
Answer:
All organisms need air. There are organisms called anaerobic organisms that don’t need oxygen, but all organisms need air.
Explanation: