The main reason that organisms compete with each other is that - all species need to reproduce
- all life depends on energy from the sun
- most animals are aggressive by nature
- resources in an ecosystem are limited

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina

Contrast how pollination is different among gymnosperms and angiosperms.

The negative impacts of nonnative species generally outweigh the positive impacts