3. Which of the following is not a question that can be answered by science? (l point) O How is the rate of photosynthesiS affected by the amount of lıght a plant receives?
OHOW do mutations in a cell's DNA affect a person's health?
OWhich flower color is most beautiful?
O What population changes take place in an ecosystem when a new species of organism is introduced?

In which direction is the pacific plate moving in relation to the north american plate?

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.