The part of an experiment that changes is

hypothesis

variable

control

experiment

When a promoter element is bound by a positive regulatory protein, the result is?

Two factors which can produce biomes are: A: climate and location B: elevation and latitude C: vegetation and temperature D: water and climate

Adele is 42, drinks three glasses of wine a day, started her periods at the age of 10, and has never had any children. Which type of reproductive pathology is she at an increased risk of developing?

Which of the following should be included in a good conclusion? A. an if-then statement that assumes a hypothesis is true. B. a statement that is considered to be an answer to a research question. C.

Review the process outlined below. What will be the result if the replication process is followed as described? 1. DNA separates into two strands 2. The nitrogenous bases on the original stands code to arrange the new strands 3.

Which trna anticodon (s) could decode the mrna codon cag (recall that codons are always written in the 5'->3' direction and anticodons are written in the 3'->5' direction) ?

What happens to the molecules within a gas when the gas condenses? They gain energy. They lose energy. They drift apart. They move faster.

What causes the phase of the moon? A. The earth's shadow on the moon. B. How much of the sunlit side of the moon faces Earth C. Clouds blocking the moon's light.

If we removed the decomposers from this food web, how would it affect the balance of the ecosystem? A.) There would be an increase in dead matter and a lack of nutrients in the soil. B.

Which of the following statements is true? aWater and energy are not recycled in an ecosystem. bWeathering is the main way phosphorous is recycled. cThe total amount of energy in an ecosystem continuously increases.