June 2018 Living Environment Regents Questions 31-40 Question Preview (ID: 56834)

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Headlines such as these best illustrate the concept that

a) scientific explanations are tentative and subject to change

b) some newspapers are not honest and report incorrect information on purpose

c) worms can enter the body many different ways

d) worms found in swamps should not be used for fishing

From this, he concluded that plants gain weight from the water they take in. His conclusion was based on

a) the input of scientists from many countries doing similar studies

b) the application of advanced technologies to the study of a problem

c) careful observation, measurements, and inferences from his data

d) an extensive knowledge of the process of photosynthesis

What is the approximate diameter of one cell?

a) 10 µm

b) 50 µm

c) 250 µm

d) 500 µm

Ecologists are concerned that the golden-winged warbler population is at a dangerously low level. One reason this could lead to extinction of this warbler is that

a) after a species becomes extinct, it won’t be able to carry out its role in the ecosystem

b) there may not be enough diversity among the birds for the species to be able to survive an environmental change

c) extinction always occurs when populations begin to decrease in number

d) an increase in biodiversity within a population often causes the population to be classified as threatened or endangered

One primary function of the cell membrane is

a) regulating the flow of simple sugars into or out of the cell

b) synthesizing substances by breaking down cell organelles

c) storing carbohydrates, water, and starches for future use

d) digesting carbohydrates, fats, and protein

For several years now, there has been discussion of constructing a large oil pipeline across the United States. Which statement expresses a major concern many people are likely to have about the proposed pipeline?

a) The pipeline will bring a large number of jobs to the area where it is being constructed.

b) The oil pipeline will increase the amount of finite resources.

c) If this pipeline were to leak, the oil could contaminate soil, water, and wildlife.

d) The pipeline is a technological fix for ozone depletion.

By observing the annual rings in the diagram, one can infer that

a) environmental conditions did not change over the last 20 years

b) trees grow faster on the side that faces the Sun

c) some years provide better conditions for growth than other years

d) tree rings are not reliable because trees must be cut down to see them

This treatment for acne, using phages, is effective because phages

a) produce antibodies to clean out clogged pores and hair follicles

b) eliminate bacteria by attacking specific cell structures

c) carry genes and infect follicles

d) attack every known type of bacteria

The protein endolysin belongs to which group of chemical substances?

a) hormones

b) receptors

c) biological catalysts

d) molecular bases

The typical response of the human body to an infection by bacteria is to

a) stimulate the production of antigens

b) decrease the number of enzymes in the blood

c) ignore the organisms, unless they are pathogens

d) produce white blood cells and antibodies

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