1-Which bacteria seem to be most frequently used in the production of food? Propose an explanation for this 2-Why might the influenza vaccine be less effective than other vaccines?

3-Which diseases of the gastrointestinal tract can be acquired by swimming in a pool or lake? Why are these diseases not likely to be acquired while swimming in the ocean?

4-How is cholera transmitted? How does an earthquake promote transmission?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates