June 2023 Living Environment Regents Questions 11-20 Question Preview (ID: 62092)

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A reason for this decrease may be

a) resources needed for the continued growth of their population are limited

b) competition between zebra mussels for limited resources has decreased

c) the food available for zebra mussels has decreased, reducing their rate of photosynthesis

d) a lack of natural predators and disease-causing organisms in their new environment

Which statement best describes a relationship represented in the diagram?

a) Bushes are herbivores that feed on insects.

b) Rodents are consumers that feed on lizards.

c) Roadrunners are carnivores that feed on insects.

d) Grasses are producers that are eaten by lizards.

Which activity produces the ATP that makes this pumping possible?

a) cellular respiration

b) active transport

c) carbohydrate digestion

d) enzyme synthesis

If scientists wanted to study the physical characteristics of an extinct animal that once lived in a specific area, the best source of information would be to investigate

a) plants living in habitats similar to those of long ago

b) the producer organisms living in that area at the current time

c) the animals that live in that area today

d) the fossil record of that area

The beneficial effect of the vaccine will not be passed on to the Tasmanian devils' offspring because the

a) vaccine contained only a small amount of the cancer

b) cancer can mutate, and the vaccine would then be ineffective

c) cancer caused the body of the adults to produce antigens against it

d) vaccine did not produce a change in the sex cells of the adults

Usually, snakes reproduce sexually. However, some female copperhead snakes sometimes produce offspring asexually without sperm from a male. Compared with snakes formed by sexual reproduction, the offspring of these asexually reproducing snakes

a) have more genetic variation

b) have limited genetic variation

c) contain more DNA than the parent

d) grow larger than the parent

The most likely explanation for the differences in size between male and female anoles is that

a) male organisms are always larger than the female members of a species

b) the males developed for a longer period of time

c) the females mutated during hatching, reducing their ability to grow

d) hormones can affect gene expression

Myasthenia gravis is an autoimmune disease characterized by weakness of the skeletal muscles. It occurs when normal communication between nerve and muscle cells is interrupted. The weakness is likely due to

a) the lack of ATP in the muscle caused by a decrease of available carbon dioxide

b) the brain failing to send the proper hormone signal to vacuoles within muscle cells

c) the failure of receptor molecules on the muscle to receive the chemical produced by nerve cells

d) the ribosomes in the muscle cells failing to produce enough sugar for muscle contraction

The removal of a short sequence of bases from a gene would most directly affect the

a) diffusion of materials into a cell

b) shape of a protein molecule

c) pH of the cytoplasm

d) size of a cell's nucleus

As energy moves through a forest ecosystem, it flows from

a) heterotrophs to autotrophs

b) animals to plants

c) herbivores to carnivores

d) carnivores to autotrophs

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