49.42
The diagram below is comparing descriptive, comparative, and experimental investigations. The overlapping circles are a
place for common traits to exist between the overlapping circles. The brown section in the center is where all three circles
overlap. What belongs in the brown circle?

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.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.