I believe the answer is B. <span>The antibodies on B cells bind to the antigens on the pathogen's surface.
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Community structure is influenced by many factors, including abiotic factors, species interactions, level of disturbance, and keystone species, play particularly important roles in determining their communities’ structure.
Answer:
3) Temperature
4) gill covering opening and closing per minute
5)as temperature rises, the rate of gill covering opening and closing per minute increase until the temperature reaches 27℃ where the rate decreases
Explanation:
4) you can adjust and control the temperature in an experiment
5) you can't control the gill opening and closing rate
The cell membrane helps to transport ions, nutrients, and waste.
Important muscle electrical signals is the movement of charged material (ions) across cellular membranes in a limited area
