What do plants use for energy?(1 point)
Responses
glucose
glucose
water
water
light
light
fructose
What do animals such as clams and oysters extract from the water to build their shells?(1 point)
Responses
carbon
carbon
hydrogen
hydrogen
fructose
fructose
silicon
silicon
To answer the first question, "What do plants use for energy?", the correct answer is "light." Plants use light energy from the sun to fuel a process called photosynthesis. During photosynthesis, plants convert light energy into chemical energy in the form of glucose. Glucose is then used by plants as a source of energy to carry out various metabolic processes.
Regarding the second question, "What do animals such as clams and oysters extract from the water to build their shells?", the correct answer is "carbon." Clams, oysters, and other mollusks extract dissolved carbon from the water, in the form of bicarbonate ions (HCO3-) or carbonic acid (H2CO3), to build their shells. Carbon is a key component of calcium carbonate, which is the primary substance found in the shells of these animals. They convert the carbon in the water into calcium carbonate, using it to build and maintain their protective shells.