Answer:
chloroplasts
Explanation:
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
Answer:
During transpiration, water will evaporate from tiny holes in the surfaces of leaves into the air (the tiny holes are called stomata). As the water molecules evaporate from plant leaves, they attract the water molecules still in the plant, helping to pull water up through the stems from the roots.
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Explanation:
Endotherms use metabolic heat to keep a stable body temperature, while ectotherms do not. ... Metabolic rate varies with activity level. More active animals have a higher metabolic rate than less active animals. Some animals enter a state of torpor in which their metabolism slows.
Answer:
B. bradycardia
Explanation:
Bradycardia, also known as slow heart rate, is usually slower than 60 beats per minute.
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