If a person lacks A and B proteins on their red blood cells, which of the following is their blood type? O Blood Type: A
O Blood Type: B
O Blood Type: AB
O Blood Type: 0

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide

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