August 2017 Living Environment Regents- Multiple Choice

cell membranes

A child with cystic fibrosis has an altered protein in his cells that stops chloride ions from leaving the cells. This protein most likely affects the functioning of

synthesize its own food

A fruit fly is classified as a consumer rather than as a producer because it is unable to

a decrease in recycling causes the reduction of the amount of available resources

A human activity that has impact on its environment

building the center would decrease resources needed by local organism

Before a new shopping center can be built on previously undeveloped land, the builders must submit a proposal to the local government for approval. Which statement identifies an environmental concern associated with the development of the shopping center?

preserve biodiversity

Homeowners have been encouraged to learn how to identify invasive plants and to remove them if they find them. The most likely reason for removing invasive plants is to

blocks a receptor on certain cells in the lobster

Lobsters prey on sea hares, which are marine animals. The lobsters find their prey through a sense of smell. The sea hares defend themselves by squirting ink at the lobster, as shown in the photo below. The ink sticks to the lobster, interfering with its sense of smell.

energy

Organisms contain compounds such as proteins, starches, and fats. The chemical bonds in these compounds can be a source of

genetic engenering

Phosphorus is necessary for the growth of healthy plants. Scientists are developing plants that can grow in phosphorus-poor soil. Some of these new varieties, produced in a lab, make extra copies of a protein that helps them obtain more phosphorus from the soil. The process being used to develop these new varieties is mostly

the growth of a forest through ecological succession

Scientists have studied the return of plant life on Mount St. Helens ever since the volcano erupted in 1980. Wildflowers began colonizing the area, followed by shrubs and small trees. Scientists predict that it will likely take hundreds of years before the area returns to a forest dominated by fir and hemlock trees. These changes are an example of

work to protect bobolink habitats in South and North America

The bobolink is a small blackbird that nests in fields of tall grass. It breeds in the summer across much of southern Canada and the northern United States. It migrates long distances, wintering in southern South America. The numbers of these birds are declining due to disruption of the areas where they live.

decrease and eventually stop

The most likely result of completely removing carbon dioxide from the environment of a plant is that sugar production will

insulin is released when glucose levels in the blood are high

Which change is an example of maintaining dynamic equilibrium?

reproduction

Which life function is not necessary for an individual organism to stay alive?

predator-prey

Which row in the chart below shows a direct relationship that can exist between two living organisms? 1. producer-carnivor 2. predator-prey 3. parasite-prey 4. carnivore-host

Genes are made of DNA and code for pro- teins.

Which statement is an accurate description of genes?