Plants grow in response to stimuli. these stimuli can come from
a. a location in the flower.
b. plants in another field.
c. the environment.
d. a location in the xylem.

Babies with very low or very high weight are less likely to survive .

Which is true of the regious near earth equator

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.