What causes a cell to divide? What are the things on the outside that send signals?

What contains a chemical message or code?

What part of the plant develops into the primary root? A. Root tip B. Radicle C. Root hair

Scientist developed a vaccine to protect humans from the H1N1 virus which cost 17,000 deaths in 2009. Which of the following persons would most likely contract the H1N1 virus? A.

What group of organisms are responsible for capturing energy within ecosystems? a. bacteria b. consumers c. producers (I know its not b it has to be either a or b im confused)

A nurse is caring for a client with bronchogenic carcinoma. which nursing intervention takes highest priority?

Why can't you use visible light to "see" molecules?

A system to maintain homeostasis must have at least four parts that function together. name these abd bruefly explain what each one does

Which of the following is a sac fungus? A rhizopus, B candida C penicillium notatum

What are the stop codons

One factor that can increase sensitivity to sunlight is genetics. a. True b. False