What skill is a scientist using when she listens to the sounds that whales make

In tomatoes, the fruit color, red or yellow, is transmitted by a gene having 2 alleles: the red allele dominated the yellow allele. A) designate by symbols the corresponding alleles

What controls the cell's activities? A. protein B. DNA C. RNA D. allele

The stomata open and close in response to pressure within

Name Three main biomes in the United States

Cosmologists are scientists who study stars, galaxies, black holes, and other objects in the universe.

All microorganisms cause illness and disease? true or false

10. Which of the following is an emerging dis- ease that was unknown 50 years ago? a. malaria b. dengue fever C. Lyme disease d. schistosomiasis

What would be the effect of a mutation in the coding region of the lactase gene?

Which of the following can be said about the use of agriculture? a. It bears no effect on the environment. b. It stunted the growth of civilization and development. c. It prohibited the use of machinery. d.

The function of mitrochondria and chloroplasts is related to energy. In what way does their function differ?