Which statement is an example of a scientific theory? A.
Hummingbirds do not like the color white because they visit other colored flowers more often.
B.
The amount that caffeine affects a person's heart rate differs based on the person's age.
C.
The Earth is the third planet from the Sun and has one moon, which orbits the Earth.
D.
All living organisms are composed of one or more cells, which came from pre-existing cells.

List two modern organisms that have pentameral symmetry

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.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.