Q & A - Science

Q & A

• Heterotrophs generally have high energy conversion efficiencies when compared to those of Heterotrophs generally have high energy conversion efficiencies when compared to those of plants. (A) True (B) False
• The amount of energy actually incorporated into the biomass of phototrophs is The amount of energy actually incorporated into the biomass of phototrophs is ________________. (A) Gross primary productivity (B) Net primary productivity (C) Stan...
• Carnivores represent what trophic level Carnivores represent what trophic level? (A) Producers (B) Primary consumers (C) Secondary consumers (D) Decomposers
• Which trophic level is incorrectly defined Which trophic level is incorrectly defined? (A) Carnivores -- secondary or tertiary consumer (B) Decomposers -- microbial heterotrophs (C) Herbivores -- primary con...
• Plants capture approximately Plants capture approximately _______________ of the suns energy while other trophic levels capture about ____________________ of the energy available to them in their foo...
• The total amount of energy that is converted to organic compounds in a given area per unit The total amount of energy that is converted to organic compounds in a given area per unit of time is called the (A) Biomass (B) Transpiration (C) Net primary produ...
• Goats depend on autotrophs for the production of Goats depend on autotrophs for the production of (A) O2 (B) Glucose (C) Both of the above (D) None of the above (E) Goats are autotrophs
• Which of the following communities is the most productive Which of the following communities is the most productive? (A) Temperate forests (B) Tropical forests (C) Savannas (D) Wetlands (E) Boreal forest
• What type of organism carries out nitrogen fixation What type of organism carries out nitrogen fixation? (A) Bacteria (B) Fungi (C) Protists (D) All of the above (E) None of the above
• Carbon dioxide makes up approximately what percentage of the atmosphere Carbon dioxide makes up approximately what percentage of the atmosphere? (A) 0.03% (B) 0.47% (C) 21.0% (D) 78.0% (E) 96.0%
• Which of the following chemicals enters living organisms primarily from the atmosphere rat Which of the following chemicals enters living organisms primarily from the atmosphere rather than from rocks or soil? (A) Calcium (B) Sulfur (C) Sodium (D) Carbo...
• The earth is an open system with respect to The earth is an open system with respect to (A) Organisms (B) Chemicals (C) Energy (D) All of the above (E) None of the above
• Of the fresh water in the United States, 96% consists of Of the fresh water in the United States, 96% consists of (A) Streams and rivers (B) Lakes and ponds (C) Oceans (D) Swimming pools (E) Groundwater
• Which of the following organisms is a primary consumer Which of the following organisms is a primary consumer? (A) An autotroph (B) A horse parasite (C) An oak tree parasite (D) A wolf (E) A seaweed
• On an annual basis, approximately what percentage of all the CO2 in the atmosphere is fixe On an annual basis, approximately what percentage of all the CO2 in the atmosphere is fixed by photosynthesis? (A) 100% (B) 70% (C) 36% (D) 10% (E) 1%
• Which of the following contains a lot of carbon Which of the following contains a lot of carbon? (A) Fossil fuels (B) The oceans (C) Peat (D) All of the above contain a lot of carbon (E) None of the above con...
• On average, for a crop plant to produce one kilogram of food it requires how many kilogram On average, for a crop plant to produce one kilogram of food it requires how many kilograms of water? (A) 1 (B) 10 (C) 100 (D) 1000 (E) 10,000
• Which of the following pyramids can never be inverted in a natural ecosystem Which of the following pyramids can never be inverted in a natural ecosystem? (A) Pyramid of numbers (B) Pyramid of energy (C) Pyramid of biomass (D) All can be i...
• Which of the following is a secondary consumer Which of the following is a secondary consumer? (A) A carnivore (B) A herbivore (C) A plant (D) All of the above (E) None of the above
• The process of converting nitrate to nitrogen gas and nitrous oxide is called The process of converting nitrate to nitrogen gas and nitrous oxide is called (A) Nitrogen fixation (B) Ammonification (C) Denitrification (D) Eutrophication (E...
• The accumulation of herbivore biomass in an ecosystem is an example of The accumulation of herbivore biomass in an ecosystem is an example of (A) Biogeochemical cycles (B) Transpiration (C) Net primary productivity (D) Gross primary ...
• When part of the Hubbard Brook Experimental Forest was cut down When part of the Hubbard Brook Experimental Forest was cut down (A) Water flowed through the system at a greater rate (B) Nitrogen began to accumulate in the system ...
• The major reservoir for phosphorus is The major reservoir for phosphorus is (A) Aquifers (B) Soil and rocks (C) The atmosphere (D) The sun (E) Clouds
• What is happening to the amount of carbon dioxide in the atmosphere What is happening to the amount of carbon dioxide in the atmosphere? (A) It is increasing (B) It is decreasing (C) It is holding steady (D) It is fluctuating wild...
• Which is a more accurate way of dating rocks, absolute or relative dating Which is a more accurate way of dating rocks, absolute or relative dating? (A) Absolute dating (B) Relative dating (C) They are equally accurate
• Which of the following does not contribute to the species diversity of the tropics Which of the following does not contribute to the species diversity of the tropics? (A) Predictability (B) Predation (C) Spatial homogeneity (D) High productivity
• Net primary productivity is the gross primary productivity less Net primary productivity is the gross primary productivity less (A) That which is consumed by herbivores (B) That which is consumed by the producer in metabolism (C...
• In a salt marsh, the meiofauna In a salt marsh, the meiofauna (A) Are represented by crabs and lobsters (B) Include fish (C) Are very small animals that live between the sand grains (D) Are the algae
• The term detritivore includes The term "detritivore" includes (A) Decomposers (B) Primary consumers (C) Secondary consumers (D) Autotrophs
• Which of the following is not a problem with ground water Which of the following is not a problem with ground water? (A) Slow movement (B) Increasing use rate (C) Pollution (D) Government ownership
• An animal will always feed on the largest prey they can find An animal will always feed on the largest prey they can find. (A) True (B) False
• Group living increases the fitness of the individuals by decreasing the risk of predation Group living increases the fitness of the individuals by decreasing the risk of predation and increasing feeding success. (A) True (B) False
• Social insect colonies are composed of highly integrated groups called clades Social insect colonies are composed of highly integrated groups called clades. (A) True (B) False
• Selection that favors altruism for the propagation of alleles in a family is called Selection that favors altruism for the propagation of alleles in a "family" is called kin selection. (A) True (B) False
• Foraging behaviors that maximize the amount of energy gained per unit of time spent foragi Foraging behaviors that maximize the amount of energy gained per unit of time spent foraging (A) Are seen when defending very large territories for limited supply of fo...
• In species where the young are altricial In species where the young are altricial (A) The male is more apt to leave and mate with many females (B) The male is the primary care giver and the female is not inv...
• An animal will defend a selected area but will roam over a larger area over the course of An animal will defend a selected area but will roam over a larger area over the course of daily activities and this larger area is called (A) Family home (B) Resource...
• Mate choice is usually exercised by Mate choice is usually exercised by (A) Males (B) Females (C) Mate choice is only exhibited in a few species and so it has not been well documented (D) Both sexes...
• Tradition is associated with Tradition is associated with (A) Cultural evolution (B) Biological evolution (C) Both of the above (D) None of the above
• A whydah is a type of A whydah is a type of (A) Insect (B) Worm (C) Mammal (D) Bird (E) Reptile
• Which of the following Belding's ground squirrels is most likely to give an alarm call Which of the following Beldings ground squirrels is most likely to give an alarm call? (A) A female with no kin nearby (B) A female with kin nearby (C) A male with ...
• In most vertebrates, group members share a maximum of In most vertebrates, group members share a maximum of _____ percent of their genes while naked mole rats share up to _____ percent. (A) 10, 20 (B) 20, 10 (C) 30, 60...
• In leafcutter ants, division of labor among workers is related to the In leafcutter ants, division of labor among workers is related to the (A) Workers sex (B) Number of workers (C) Workers size (D) All of the above (E) None of the above
• In the haplodiploidy sex determination of bees In the haplodiploidy sex determination of bees, (A) Males are sterile (B) Males are haploid (C) Males are diploid (D) Males are either haploid or diploid (E) Ma...
• What type of selection is most likely responsible for the large antlers seen on male elk What type of selection is most likely responsible for the large antlers seen on male elk? (A) Kin selection (B) Group selection (C) Territorial selection (D) Intr...
• Arguments that a particular behavior has been selected for because it benefits the populat Arguments that a particular behavior has been selected for because it benefits the population or species are examples of arguments for (A) Kin selection (B) Sexual se...
• Which mating system is most common in mammals Which mating system is most common in mammals? (A) Monogamy (B) Polygyny (C) Polyandry (D) They are all equally common
• Which mating system is most common in birds Which mating system is most common in birds? (A) Monogamy (B) Polygyny (C) Polyandry (D) They are all equally common
• Exaggerated secondary sexual characteristics can occur as a result of Exaggerated secondary sexual characteristics can occur as a result of (A) Intrasexual selection (B) Intersexual selection (C) Runaway selection (D) All of the abo...
• Which of the following is not associated with monogamy Which of the following is not associated with monogamy? (A) Altricial young (B) Sexual dimorphism (C) One male mating with one female (D) All of the above are ass...