Make a claim about which organism(s) use carbon dioxide and which organisms) produced carbon dioxide. How did your test conditions affect the cycling of matter between plants and animals? Evidence: Describe specific observations from your experiment to support your claim.
Reasoning: Did your observations support your claim? Describe, in detail, the connections between the evidence you gave and the claim you are making

Which of the following is a cost of urbanization? a-cities can provide a high standard of living. b-cities are hubs of entertainment and education. c-paving over land changes the environment. d-job opportunities are greater in urban centers.

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.