What is the term for an area where organisms live together with their physical environment?

a. ecosystem

b. population

c. biosphere

d. community

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 is the correct formula for photosynthesis

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above