How much of Earth's fresh water is surface water, such as the water contained in the Great Lakes? A. more than 70% B. about 3% C. less than 1%

The simplest sugars are generally called what?

Expound on the process of mitosis in a tissue culture for normal cells.

A healthy diet should include whole grains. Hypothesize why this type of grain is better for you than bleached flour.

Where does photosynthesis generally occur?

You are studying the effects of specific transcription factors on the activation of gene expression. You notice that one particular transcription factor binds far away from the promoter of its target gene. What can explain this?

One of the first breakthroughs in biotechnology was the discovery of the gene that makes insulin. Part of this process involved scientists making DNA to match each possible sequence of insulin mRNA. What was the next step of this process? A.

Which of these modes of transmission require a bodily opening either natural or artificial?

Which factor is a characteristic of an acid? A. Non-corrosive B. Soapy C. Sour D. Slippery

How are unique daughter cells created in meiosis? A. Homologous pairing B. Crossing over C. Mutation during reduction Division D. Zygote fertilization

In any food web, which organism has the LEAST available energy? A) birds or omnivores B) plants or producers C) fungi or decomposers D) animals or carnivores