What scientist proposed a link between contaminated water and cholera

3. Cirrus clouds a. form high in the troposphere. b. always produce precipitation. c. are made of ice crystals. d. two of the above 4. The prefix nimbo - means a. tall. b. rain. c. cold. d. snow. 5. Hail forms only in a. cumulonimbus clouds. b.

A gene is a subunit of information on a chromosome true or false?

planets in our solar system revolve around the Sun because A.) the sub is the slowest object in our solar system B.) the sun is the most massive object in our solar system C.) the sun is the brightest object in our solar system D.

Some species form social groups only with members of the same gender. For example, elephants form groups with only females and their offspring. Once the male offspring reach a certain age, they leave the group and become solitary.

Characteristics of hereditary mutation

Which group of microorganisms is most likely to spoil a freshwater trout preserved with salt? A) Psychrophiles B) Facultative halophiles C) Anaerobes D) Thermophiles E) Hyperthermophiles

What is unique about dogs?

3. The best thing you can do to keep a positive relationship with your supervisor is to

What contains both communities and ecosystems?

Which of the following represents a way that animals in a zoo are influenced by their environment? a. increased natural instincts b. decreased aggression c. unnatural behavior d. increased appetite