About two-thirds of human caloric intake consists of wheat, rice, and corn. What tissues constitute the majority of the nutritional content of these plant-based foods?

seed embryos and ovules
starch granules and sporopollenin
endosperm and female gametophytes
fruits and cones

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

Match each symbol with its description.

Which feature would you expect to find in a population in which sexual selection depends on male competition?