These sources of information are used to determine the relationships among different species. Which provides information at the species level? A.
comparison of fossil records
B.
comparison of the nucleotide sequences in DNA
C.
comparison of the morphology of the different species

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

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 three statements represent the benefits of performing experiments using computer simulations?