Living Environment

The organic compounds that scientists use to cut, copy, and move segments of DNA are

• carbohydrates

• enzymes

• hormones

• starches

Organic compounds are used as building blocks for

• water, DNA, and starches

• water, proteins, and oxygen

• proteins, DNA, and carbon dioxide

• proteins, starches, and fats

Which row in the chart indicates what A and B in the boxes could represent?

• 1

• 2

• 3

• 4

Which group contains only molecules that are each assembled from smaller organic compounds?

• proteins, water, DNA, fats

• proteins, starch, carbon dioxide, water

• proteins, DNA, fats, starch

• proteins, carbon dioxide, DNA, starch

Tags

NGSS.MS-LS1-7

What substance could be represented by the letter X in the diagram below?

• carbohydrates

• ozone

• carbon dioxide

• water

Which row in the chart below contains correct information concerning synthesis?

• Row (1)

• Row (2)

• Row (3)

• Row (4)

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The building blocks for this molecule are

• amino acids

• simple sugars

• fats

• molecular bases

The image shows a food web in the mountains of Georgia. Which best describes the organisms that would recycle decaying matter back into the mountain ecosystem?

• The mushrooms because they are decomposers and break down matter to return to the ecosystem.

• The Sun because it provides all the energy required for the organisms to return matter to the ecosystem.

• The deer because they are consumers and break down the matter from producers to return to the ecosystem.

• The berries and flowers because they are producers and are broken down for multiple consumers in the ecosystem.

Tags

NGSS.MS-LS2-3

Which best describes a food web?

• a less complex food chain that shows how producers gain their energy from the Sun

• a more complex food chain that shows how organisms are able to digest their nutrients

• a combination of food chains that show how organisms interact to get their required energy and matter

• a single food chain that shows how organisms interact to get their required energy and matter

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

All plants and animals need to obtain energy from their environment in order to grow. How is this process different for plants than it is for animals?

• Plants obtain their energy from sunlight, while animals obtain their energy by eating plants or other animals.

• Plants need several multiple sources of energy, while animals only need one source of energy.

• Plants convert the energy they obtain to sugar, while animals convert the energy they obtain to salt.

• Plants obtain their energy through their roots, while animals obtain their energy through their mouths.

Tags

NGSS.MS-LS1-6