Cumulative Exam — Cumulative exam Answers

Which of the following two cycles are the most closely related in their role in sustaining life?a.carbon and nitrogenb.water and nitrogenc.carbon and oxygend.nitrogen and phosphorus

Which of the following is true of deciduous forests?a.characterized by four seasonsb.trees maintain their leaves year roundc.precipitation is concentrated in one season d.averages 5-10 inches of precipitation annually

The following graph is representative of what type of population growth?a.logisticb.exponentialc.lineard.triangular

Desert plants are often widely spaced due to competition for rainwater.

Which of the following statements about Earth’s cycles is not true?a.Earth’s cycles move matter between abiotic and biotic factors of the environment.b.The various cycles found on Earth are vital to life.c.Some of Earth’s cycles are a direct result of human action.d.Earth’s cycles convert nonliving elements into forms usable by organisms.

Which of the following is not one of the five zones of the deciduous forest?a.shrubb.animalc.herbd.tree stratum

Which of the following biomes are considered temperate biomes?a.deciduous forests and grasslandsb.chaparral and tundrac.rainforest and tundrad.alpine and deciduous forests

Fish do not live in the icy rivers of the tundra.

Salt glands allow desert animals to reduce their water loss due to _______.a.respirationb.transpirationc.evaporationd.urination

The diagram below shows the energy conversions of the Krebs cycle, which is part of cellular respiration. The U-shaped arrows that show changes for NAD+, FAD, and ADP molecules represent energy conversions. From each glucose molecule, two acetyl-CoA molecules are made for the Krebs cycle.How many energy conversions occur when both acetyl-CoA molecules go through the Krebs cycle?

Herbivores typically have monocular vision to allow them a wider range of vision, which helps them elude predators. What type of adaptation is this?a.Behaviorb.Physiologicalc.Biochemicald.Ecological

Which of the following statements about the tundra is not true?a.Tundra means “treeless land.”b.Plants and animals in the tundra have adapted to the extreme climate.c.Temperatures in the tundra range from extreme highs to extreme lows.d.The alpine tundra can be found on mountaintops.

Error

Which statement correctly distinguishes photosynthesis and respiration?

If a population of medium sized rodents is placed under a selective pressure that yields both very large and very small individuals it was most likely _______.a.a stabilizing selectionb.a disruptive selectionc.a directional selectiond.not a natural selection event

Coniferous forests evolved due to Earth’s continents assuming their modern configuration.

Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?

Territorial animals like spiders that fight off intruders would be expected to be _______. a. regularly distributed b. randomly distributed c. clustered together d. b and c Please select the best answer from the choices provided