The diagram below shows the chromosomes from a cell after they were photographed under a microscope. Which of the following questions may best be answered by
studying an organism's chromosomes?
a. How does the organism obtain its food?
b. What sex is the organism?
c. Is the organism endangered?
d. Where is the organism's ecosystem?

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 of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

How does photosynthesis show the conservation of mass and energy?