Which of these statements is true of scientific theories

A. They are the beginning of research

B. They are the last step in an experiment

C. They can change over time

D. They can never be proven wrong

Choose all the answers that apply. The temperate deciduous forest: has four seasons is the driest biomes receives moderate rainfall has the most species diversity has the least species diversity

What evidence exists that suggests modern agriculture is unsustainable? what evidence exists that suggests modern agriculture is unsustainable? fertilizers and pesticides are inexpensive and easy to obtain. fresh water is used for irrigating crops.

Decomposers A) produce energy from the sun's rays B) break down dead material in an ecosystem C) produce energy by hunting prey D) are found only in dry climates

Is a fungi a prokaryote organism or a eukaryte organism?

Which of the following is an example of a baleen whale? a. beluga whale b. humpback whale c. killer whale d. sperm whale

Climate zone have different climates mostly because

Scientists who study rock formations in caves describe some of the formations as "living rock" because, under certain conditions, they increase in size. Which statement would best dispute the claim that these rock formations are living?

Baltes (1993) identified three factors that make a person wise: (1) general personal conditions such as mental ability; (2) specific expertise conditions such as mentoring or practice; and (3) :

Place three sentences from the list into the correct order to describe the synthesis of atp by atp synthase. only three sentences are accurate; four are inaccurate. scroll down to see all the phrases.

Which of the following molecules is an example of a nucleoside analog?