What is responsible for the yellow color of the urine? normal urine is clear and pale yellow in color. the yellow color is due the presence of the pigment (fill in the blank)

What is the correct answer for the process of water eroding soil? rills, sheet erosion, gullies sheet erosion, rill, gullies gullies, rills, sheet erosion sheet erosion, gullies, rills

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm