Why do leaf cells contain many choloroplasts?
• A. Cells located in a leaf need more sunlight for photosynthesis.
B. Cells located in a leaf need more sunlight for transpiration.
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C. Cells located in a leaf need more sunlight for protein synthesis.
D. Cells located in a leaf need more sunlight for respiration.

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Identify the missing parts of the carbon cycle