Whether an organism is a phototroph or a chemotroph depends on its source of energy.
Answer the following statement true (T) or false (F)
True
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Despite great diversity, all vertebrates share which basic homeostatic mechanism(s)?
a. digestion only b. metabolism only c. respiration only d. digestion and metabolism e. digestion, metabolism and respiration
Which of the following describes an enzyme?
a. A catalyst in a biochemical reaction that is typically a protein b. A fat molecule that is linked to a glycerol molecule c. A polymer of nucleotides that is involved in protein synthesis d. A type of lipid that is composed of four fused hydrocarbon rings
Which of these is a renewable resource?
a. biofuels b. fossil fuels c. oil d. coal e. all of the above
Which structures make up the innermost whorl of a flower?
a. the receptacles b. the carpels c. the sepals d. the stamens