January 2019 Living Environment Regents Questions 21-30 Question Preview (ID: 56845)

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Many disorders are due to the inability of an individual to break down a particular chemical. Sometimes these disorders can be treated by giving the affected individual the appropriate

a) enzymes

b) antigens

c) chromosomes

d) organelles

The removal of the predator populations from an ecosystem would most likely result in

a) a decrease in all the prey populations

b) an increase in all the producer populations

c) an increase in ecosystem diversity

d) a decrease in ecosystem diversity

A benefit of using wind power as an alternative source of energy is that it

a) is nonrenewable, so additional resources will be depleted by tower businesses

b) is renewable, so it will decrease the environmental impact of the tower businesses

c) increases the use of resources that cannot be renewed in the future

d) decreases the amount of fossil fuels available for future generations

This behavior continues to be present in the rabbitfish population because

a) this behavior was learned by observing other fish species

b) both fish could not fi t into the small spaces in the coral

c) this behavior increases their chance of survival

d) the fish species needed to become alert to survive

If farmers continue to plant the same crop in the same fields year after year without putting additives into the soil, the end result could be

a) smaller yields in future years due to the loss of nutrients

b) larger potatoes because they will adapt to the soil

c) new varieties of potatoes because they will reproduce sexually

d) genetically engineered potatoes that are resistant to disease

A corn field includes corn plants, mice, hawks, and various insects, fungi, and bacteria. Which nutritional role is correctly paired with organisms that carry out that role?

a) heterotrophs – corn and bacteria

b) producers – insects and fungi

c) consumers – mice and insects

d) decomposers – hawks and bacteria

Which statement best explains why this does not happen?

a) Mutations develop in the young flies.

b) Environmental factors keep the population in check.

c) Flies continue to reproduce in large numbers.

d) More female flies survive than male flies.

Which sequence best represents the levels of organization in a paramecium, a single-celled organism?

a) cells → tissues → organs → organ systems → organism

b) organelles → organ systems → organism

c) cells → organs → organ systems → organism

d) organelles → organism

The best explanation for why increased numbers of plants would help is that plants

a) serve as food for herbivores

b) serve as a nonrenewable energy resource

c) remove carbon dioxide from the atmosphere during respiration

d) remove carbon dioxide from the atmosphere during photosynthesis

One negative result of this snake’s introduction was most likely

a) an increase in diversity as new species evolved to replace extinct species

b) an increase in mosquitoes due to an increase in bird species in the environment

c) a disruption of food chains and food webs in Guam’s ecosystems

d) an abundance of brown tree snakes as a food source for humans

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