A scientist used a microscope to observe a prepared sample on a slide. The scientist's observations are shown.
Smooth Muscle
Nucleus
o
A. cell
B. tissue
C. organ
O
o
D. organism
E. organ system

Enzymes are proteins that speed up reactions by providing an additional energy source supplying additional molecules for the reaction removing inhibitors that slow down reactions lowering the amount of energy required

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

What best explains the inability for life to exist in earth early atmosphere