Living Environment

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

Tags

NGSS.MS-LS1-7

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

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS1-7

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

Substances X and Y are examples of which kind of molecule?

• simple sugar

• amino acid

• fat

• hormone

The diagram below represents a sequence of events that occurs in living things. Letter X represents

• inorganic molecules

• organic molecules

• biological catalysts

• simple sugars

Tags

NGSS.MS-LS1-7

The basic building blocks of a protein are

• glucose molecules

• amino acids

• hormones

• fats

Tags

NGSS.HS-LS1-1

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

What is the original source of almost all the energy in Earth's ecosystems?

• carbohydrates

• sunlight

• water

• starch

Tags

NGSS.MS-LS1-6

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

NGSS.MS-LS2-3

Which best describes what happens to the matter in an ecosystem

• The matter is recycled as it moves through the food web.

• The matter is created by organisms as it travels up the food web.

• The matter is consumed by organisms as it travels down the food web.

• The matter is destroyed after it is eaten by the organisms in the food web.

Tags

NGSS.MS-LS2-3