June 2024 Living Environment Regents Questions 31-40 Question Preview (ID: 63451)

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Based on the information given, which statement concerning the eating of fish and seafood is most accurate?

a) 1

b) 2

c) 3

d) 4

Which statement is best supported by the information provided about the levels of mercury present in seafood?

a) Human activities do not affect mercury levels in fish species.

b) Future generations can be affected by choices made by past and present generations.

c) Fish that consume plants have the highest levels of mercury compounds.

d) If people stop eating fish, then the mercury levels in fish will decrease.

This change in protein function was originally caused by a change in

a) molecular bases located in the nucleus

b) fat molecules in the cell membrane

c) the amino acids in the DN

d) the genes located in the protein

Which row in the chart below correctly pairs an organism that performs a similar function in land environments with the process involved?

a) 1

b) 2

c) 3

d) 4

Which row in the chart below correctly pairs possible effects of fish farming?

a) 1

b) 2

c) 3

d) 4

Which evolutionary tree best represents these sequences of events?

a) 1

b) 2

c) 3

d) 4

If all three water fleas are genetically identical, which statement best explains why the three water fleas have different appearances?

a) Random alterations of genes occur in water fleas when they eat different foods.

b) Predators in the water flea’s environment cause mutations in the water flea.

c) Genes are not involved in the appearance of these water fleas.

d) Water flea gene expression can be influenced by the type of predator present in their environment.

The discovery that humans can inherit mitochondria from their fathers illustrates the concept that

a) inquiry does not judge the reliability of sources

b) experiments without controls are not valid

c) scientific explanations are tentative and subject to change

d) advancements in technology usually make scientific theories invalid

The most likely explanation for why children who inherited mutated mitochondria suffer fatigue and muscle pain is that their mitochondria fail to

a) provide the antigens needed to fight the mutated DNA

b) regulate the transport of nutrients to the muscle cells

c) synthesize the starch needed by the muscles

d) release enough energy for cells to function properly

Which statement best describes a likely cause for the changes that might exist in the present python population?

a) The python species needed cold-tolerant genes, and they appeared in 2010 by rapid mutation.

b) The freeze event served as a selecting agent, and a higher percentage of the pythons existing today are cold-tolerant.

c) Many individual pythons were unable to reproduce during the freeze event and did not pass on their cold-tolerant genes.

d) There was no actual change in the population, and if a similar freeze event occurred again, 40-90% of the snakes would die.

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