Phenotype depends on:
a. the effects of the environment.
b. genotype.
c. the effects of both the environment and genotype.
d. natural selection.
C
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An advantage that simple multicellular eukaryotes have over single-celled organisms is the ability:
A. of the cells in the multicellular organism to communicate with one another. B. of the cells in a group of cells to avoid predation. C. for autotrophic cells in the multicellular organism to supply heterotrophic cells with nutrients. D. to respond the external environment more efficiently.
In two-dimensional nano-liquid chromatography, a complex mixture of peptides is separated first by charge and then by solubility.
Answer the following statement true (T) or false (F)
What is phloem? What is the name of the main process that occurs in phloem? Why is this process important for plants?
What will be an ideal response?
Where is the central pacemaker that controls circadian rhythm found in many animals?
a. in the suprachiasmatic nucleus b. in the eye c. in the skin d. in the optic nerve