The three-carbon ________ combines with coenzyme A to form ________
Fill in the blank(s) with correct word
pyruvic acid; acetyl CoA
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Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. Slugs prefer to eat pink-flowering over white-flowering plants (due to chemical differences between the two), and plants experiencing severe
herbivory are more likely to die. The bees that pollinate this plant also prefer pink to white flowers, so that Claytonia with pink flowers have greater relative fruit set than Claytonia with white flowers. A researcher observes that the percentage of different flower colors remains stable in the study population from year to year. Given no other information, if the researcher removes all slugs from the study population, what do you expect to happen to the distribution of flower colors in the population over time? A) The percentage of pink flowers should increase over time. B) The percentage of white flowers should increase over time. C) The distribution of flower colors should not change. D) The distribution of flower colors should randomly fluctuate over time.
Population density can affect the age at which an animal matures
Indicate whether the statement is true or false
The limbic system influences emotional aspects of behavior
____________________ Indicate whether the statement is true or false.
Endocrine hormones are
A) released from a nerve cell and diffuse across a synaptic gap to influence the target cells. B) electrical signals that move between adjacent cells. C) released from gap junctions directly into the cytoplasm of the connected cell. D) chemicals released by cells into the surrounding extracellular fluid and affect only other nearby cells. E) chemicals released from certain cells that travel via the blood to target cells.