Answer:
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Explanation:
Answer:
Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation: I hope this helps
I am gonna say answer b. Spores
<span>This has been learned through operant conditioning. The sea lions have been trained (conditioned) to receive a reward after they balance the ball. The act of balancing the ball is the learned behavior, and the reward (positive reinforcement) is the receipt of fish from the trainer.</span>