Picoplankton may account for up to 80% of all the photosynthetic activity in some parts of the open ocean. a. True
b. False
Only about 2% of the energy of sunlight absorbed by a diatom can be converted into the energy of carbohydrate chemical bonds.

a. True
b. False
Chlorophyll is a green pigment and thus absorbs best in the green wavelengths.

a. True
b. False

Select the best answer for the question, ly 12. which of the following behaviors is not an inherited behavior?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

What maintain homeostasis when a persons internal body temperature is 97.5°f