Bees and other animals can be pollinators. How does a pollinator pollinate a flower? A. by dropping pollen on the anthers

B. by dropping pollen on the pistil

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

In the water cycle , when does water undergo a chemical change