Regents Living Environment Test Preparation Practice Regents Test, Full Exam Practice Online: living environment June 2017

1

An example of recycling is*

(1) using a paper cup instead of a mug

(2) turning off the lights when leaving a room

(3) using plastic from a soda bottle to make a certain type of clothing

(4) using two paper towels rather than five to clean up a spill

2

One characteristic of a stable ecosystem is*

(1) a high number of predators

(2) an interdependence of organisms

(3) a lack of biodiversity

(4) an increase in human interference

3

According to scientists, ocean waves could be a source of energy. Devices are being designed to capture the energy from waves and supply electricity to coastal areas. A direct benefit of utilizing this technology to produce energy would be the*

(1) destruction of habitats near the devices

(2) decreased use of nonrenewable resources

(3) release of gases needed for photosynthesis

(4) increased use of finite resources

4

The emerald ash borer is an insect that is thought to have been accidentally brought to the United States from China in shipping containers. It attacks ash trees, eventually killing the trees, destroying an important part of the ecosystem. The presence of the emerald ash borer in the United States can be used as an example of how humans have*

(1) purposely introduced an insect to correct a problem in an ecosystem

(2) used an insect to remove one insect species and replace it with another

(3) worked to increase the biodiversity in a particular area

(4) altered the equilibrium in an ecosystem by introducing a new species

5

Which graph best shows the changes in global human population and natural resource use over the past 500 years?

human influences on the environment, human influences on the Earth's resources fig: lenv62017-exampcw_g1.png *

(1)

human influences on the environment, human influences on the Earth's resources fig: lenv62017-exampcw_g2.png

(2)

human influences on the environment, human influences on the Earth's resources fig: lenv62017-exampcw_g4.png

(3)

human influences on the environment, human influences on the Earth's resources fig: lenv62017-exampcw_g3.png

(4)

human influences on the environment, human influences on the Earth's resources fig: lenv62017-exampcw_g5.png

6

The burning of fossil fuels has harmed the environment by*

(1) decreasing acid rain in the northeast United States

(2) adding carbon dioxide to the atmosphere

(3) increasing biodiversity in the lakes and ponds of the Adirondacks

(4) depleting the ozone shield directly over western New York State

7

Which method of collecting data would provide the most accurate information about how an ecosystem is being affected by human development?*

(1) The people in the neighborhood record the number of birds they see in the area both before and after the construction of a new building.

(2) Deer in the area are identified before construction so that scientists can see where they go after the building is finished.

(3) More trees are planted in the area around the construction site to allow the animals a new place to live.

(4) The population size is recorded for each species present in the construction area before and after the building is completed.

8

Natural selection produces changes most quickly in*

(1) species with short reproductive cycles

(2) individual pathogens killed by antibiotics

(3) complex multicellular organisms

(4) individuals that produce a small number of offspring

9

As a result of habitat destruction, the size of the Florida panther population has been drastically reduced. It is estimated that there are only 100 to 160 Florida panthers in the wild. Which statement best explains why the Florida panther population may not continue to evolve?*

(1) There is no longer a chance of mutations occurring in the population.

(2) There is a lack of competition for limited environmental resources.

(3) There is no longer a chance of a trait providing a reproductive advantage to the population.

(4) There is a lack of genetic variation for selec- tion to act upon.

10

Which level of the pyramid below is correctly paired with the type of organism that would most likely be found at that level in an ecosystem?

ecology, materials cycle through ecosystems fig: lenv62017-exampcw_g6.png *

(1) Level A – producers

(2) Level B – carnivores

(3) Level C – herbivores

(4) Level D – decomposers

11

Which statement best describes what is most likely to occur if an animal population grows larger than the carrying capacity of its environment?*

(1) The birth rate will increase.

(2) Both the birth rate and death rate will decrease.

(3) The death rate will increase.

(4) Neither the birth rate nor the death rate will decrease.

12

Many biotic factors affect individuals in a population. An example of an organism being directly affected by a biotic factor is*

(1) a squirrel cannot find a mate

(2) a flood washes away a maple tree

(3) a plant is in a dark room

(4) a chipmunk finds a rock pile to use for a home

13

When people receive organ transplants, they often need to take medications that decrease immune responses because*

(1) transplanted organs contain antigens that can trigger white blood cell activity

(2) hormones present in replacement organs prevent the synthesis of antibiotics

(3) transplanted organs produce their own antibiotics

(4) antigens present in these organs attack antibodies already present in the blood

14

Which structures regulate water loss and gas exchange in the leaves of plants?*

(1) vacuoles

(2) chloroplasts

(3) guard cells

(4) mitochondria

15

Which life process carried out by a green plant is represented in the diagram below?

organization and patterns in Life, cell energetics, cellular respiration and APT fig: lenv62017-exampcw_g9.png *

(1) respiration

(2) photosynthesis

(3) digestion

(4) replication