What is the role of xylem in a vascular plant?
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a. transports water and carbohydrates from chloroplasts
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b. transports water and nutrients upwards
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c. transports protein and carbohydrates to the leaves
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d. transports hormones and sugar to the roots
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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.

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

What pattern of migration do whales follow?