Answer the following question given this paragraph: Most aquatic organisms do not have to deal with extremes of temperature or moisture. Instead, their main limiting factors are the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water. Q: Besides the concentration of dissolve oxygen and nutrients in the water, what other factor limits aquatic organisms? Choices: - rainfall - temperature - lake size - availability of sunlight A:
availability of sunlight
(Question)
Answer the following question given this paragraph: During meiosis, homologous chromosomes separate and go to different gametes. Thus, the two alleles for each gene also go to different gametes. At the same time, different chromosomes assort independently. As a result, alleles for different genes assort independently as well. In these ways, alleles are shuffled and recombined in each parent's gametes. Q: When do homologous chromosomes separate and go to different gametes? Choices: - during electrolysis - before meiosis - after meiosis - during meiosis A:
(Answer)
during meiosis
Ques: Answer the following question given this paragraph: Q: When pumping blood, the hearts of animals with very long necks must overcome what force? Choices: - erosion - evolution - friction - gravity A:
Ans: gravity
(Q).
Answer the following question given this paragraph: Carrying this one step further, we note that the slope of a velocity versus time graph is acceleration. Slope is rise divided by run; on a v vs. t graph, rise = change in velocity v and run = change in time t . The Slope of v vs. t The slope of a graph of velocity. Q: Rise divided by run is called what? Choices: - hill - steep - mound - slope A:
(A).
slope
Ques:Answer the following question given this paragraph: Radiocarbon is useful for relatively young, carbon-based materials. Other longer-lived isotopes are good for older rocks and minerals. Q: Radiocarbon is useful for dating relatively young materials with what element as their base? Choices: - hydrogen - oxygen - nitrogen - carbon A:

Ans:carbon
Answer the following question given this paragraph: In conduction , heat is transferred from molecule to molecule by contact. Warmer molecules vibrate faster than cooler ones. They bump into the cooler molecules. When they do, they transfer some of their energy. Conduction happens mainly in the lower atmosphere. Can you explain why?. Q: In which area does conduction mainly happen? Choices: - higher atmosphere - thermosphere - mesosphere - lower atmosphere A:
lower atmosphere