Structures of Life

Which of the following best explains why their beaks are different?

• Different food is available to the birds on different islands.

• Different nesting material is available on different islands.

• Some islands have more water than other islands.

• Some islands have more birds than other islands.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Plants need light to survive. The diagram below shows how a plant will react to light.
Which of the following best explains how one of the structures of the plant allows it to grow like this?

• The flexible stem allows it to grow toward the light.

• The flower is pulled towards to the light.

• The leaves are attracted light to make food.

• The flower needs the light to attract pollinators.

Tags

NGSS.4-LS1-1

Sue is investigating the life cycle of a bean plant. She planted a bean and watered it. She made the drawing below of her observation on the third day of her investigation. What is the most likely interpretation of her observation?

• The roots are beginning to grow and take in water and nutrients.

• The stem is beginning to grow towards the light.

• The plant can reproduce seeds using flowers or cones.

• After pollination occurs, seeds are produced.

Tags

NGSS.3-LS1-1

NGSS.4-LS1-1

Mary planted a seed and observed a plant growing over several weeks. On day 5 of her investigation she made the following notes from her observations.

The roots grew out of the seed. The roots grew down. A small stem grew toward the light. The first leaf appeared.

What stage is the plant most likely in on day 5?

• Germination

• Mature plant

• Seed

• Seedling

Joey observed a plant growing over several weeks and drew the diagram shown above to model the stages of growth of the plant. Which of the drawings shown in the model shows the stage where the plant can produce seeds?

• A

• B

• C

• D

Tags

NGSS.3-LS1-1

The animal shown below has been influenced by environmental factors.

Which of the following is the best argument for this claim?

• The animal grows thicker fur when the temperature is colder.

• The animal grows thicker fur when exposed to the sun.

• The animal grows thicker fur due to lack of nutrients.

• The animal grows thicker fur due to exposure to disease.

Tags

NGSS.MS-LS1-5

A student is creating the Venn diagram above to model the similarities and differences between flowering and nonflowering plants.

Which of the following could she add to the center of the diagram(what do all plants have)?

• Cones

• Mosses

• Roots

• Petals

Tags

NGSS.MS-LS4-2

The picture above shows several structures on a cherry tree. Each structure helps the plant survive in some way.

How does the cherry help the plant survive?

• The cherries provide nutrients for the tree.

• The cherries store water for the tree.

• Animals avoid the cherries and leave the tree alone.

• Animals eat the cherries and help disperse the seeds.

Tags

NGSS.MS-LS2-1

How do the colors of the flowers help the plants survive

• The colors keep animals from eating the plants.

• The colors attract organisms for pollination.

• The colors attract animals which eat the flowers.

• The colors give the flowers smells that attract animals.

Tags

NGSS.MS-LS4-4

Which of the following best explains the function of the pine needles.

• They provide protection for the plant.

• They produce food for the plant.

• They store water for the plant

• They attract organisms for pollination.