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Living Environment Regents Practice Questions

jlyn 10 preguntas 7.541 visitas 4,7 (3 valoraciones)

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Preguntas del test (10)

  1. 1 The fossil record of ancient life forms provides scientific evidence of
    1. Adirect harvesting
    2. B selective breeding
    3. Cgene manipulation
    4. Devolutionary changes
  2. 2Which situation results in a characteristic that is inheritable?
    1. A A limb is lost when two marine organisms fight.
    2. BA puppy learns to beg for food by watching an older dog perform tricks.
    3. CA gene is inserted into a bacterium, allowing the organism to produce insulin.
    4. DA random mutation causes the immediate death of a microbe.
  3. 3Which statement explains the importance of maintaining a constant internal environment to ensure proper enzyme functioning?
    1. AChanges in pH and temperature will cause the enzyme reaction rate to be too fast.
    2. BTemperature and pH determine amino acid sequences in enzymes.
    3. C Changes in pH will change the genetic instructions of enzymes.
    4. DIncreasing the temperature and pH can alter the specific shape of enzymes.
  4. 4The major function of the placenta is to
    1. Acushion the fetus so it won’t be hurt when the mother moves.
    2. Bexchange food, oxygen, and waste between mother and fetus.
    3. Cstore food for the fetus.
    4. Dsupport the egg for the process of fertilization.
  5. 5Which statement best describes an ecosystem maintaining a state of approximate equilibrium?
    1. ANutrients from decayed organisms are recycled in a forest ecosystem.
    2. BAll the frog species in a South American rain forest become extinct.
    3. CA mutation spreads through a species of bacterium, making them unable to decompose wastes.
    4. DMice are released into a field ecosystem as food for a declining predator population.
  6. 6Which characteristic of a geographic region would have the greatest influence on the type of ecosystem that forms in that region?
    1. Aratio of autotrophs to heterotrophs
    2. Bconcentration of atmospheric oxygen
    3. C number of food chains
    4. D climatic conditions
  7. 7Growing exotic (nonnative) plant species in parks and gardens could lead directly to an increase in the
    1. Abiodiversity of the autotrophs that feed on them.
    2. Bpopulations of native carnivores.
    3. C competition between them and native producers.
    4. Dbreeding between them and native herbivores.
  8. 8Growing exotic (nonnative) plant species in parks and gardens could lead directly to an increase in the
    1. Abiodiversity of the autotrophs that feed on them.
    2. Bpopulations of native carnivores.
    3. C competition between them and native producers.
    4. Dbreeding between them and native herbivores.
  9. 9On hot, dry days, guard cells often close microscopic openings in plant leaves, conserving water. This is an example of
    1. Aenvironmental factors causing gene mutation in plants
    2. Bfinite resources acting as selecting agents for evolution
    3. Ca feedback mechanism for maintaining homeostasis
    4. Ddifferentiation in plants as a result of stimuli
  10. 10In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the
    1. Anucleus
    2. Bchloroplasts
    3. Ccell membrane
    4. Dmitochondria

Información

Descripción
Practice questions for the Biology/ Living Environment Regents. Attribute: nysedregents.org
Autor
jlyn
Idioma
English
Visitas
7.541
Valoración
4,7 de 5 · 3 valoraciones
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