Living Environment Review (August 2017, A#1-30)

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

• reproduce asexually

• synthesize its own food

• release energy stored in organic molecules

• remove wastes from its body

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NGSS.MS-LS1-7

Which change is an example of maintaining dynamic equilibrium?

• A plant wilts when more water is lost from the leaves than is lost by the roots.

• A plant turns yellow when light levels are very low

• Insulin is released when glucose levels in the blood are high.

• A person sweats when the environmental temperature is low.

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NGSS.MS-LS2-1

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 most likely

• paper chromatography

• natural selection

• direct harvesting

• genetic engineering

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NGSS.MS-LS1-5

NGSS.MS-LS3-1

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

• nutrition

• reproduction

• regulation

• excretion

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

• amino acids

• simple sugars

• energy

• enzymes

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NGSS.MS-LS1-7

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. The most likely reason the sea hare can escape is because the sea hare ink

• pushes the sea hare away rapidly as the ink is expelled

• blocks a receptor on certain cells in the lobster

• causes the lobster to change its prey

• prevents movement of the lobster

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NGSS.MS-LS2-4

Which statement is an accurate description of genes?

• Proteins are made of genes and code for DNA.

• Genes are made of proteins that code for nitrogen bases.

• DNA is made of carbohydrates that code for genes

• Genes are made of DNA and code for proteins.

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NGSS.HS-LS1-1

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. In order to save these birds from extinction, the best course of action would be to

• prevent the birds from migrating to South America

• encourage farmers to let their hay fields undergo succession

• work to protect bobolink habitats in South and North America

• capture all the bobolinks and keep them safe in zoos

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

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

• cell membranes

• nuclei

• mitochondria

• ribosomes

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NGSS.MS-LS3-1

NGSS.MS-LS1-2

Which row in the chart below shows a direct relationship that can exist between two living organisms?

• (1)

• (2)

• (3)

• (4)