Science Concept 3.3 and 3.4 Assessment

True or False: Plants have basic needs that they must have in order to survive. These needs are light, water, nutrients, and air/oxygen.

• True

• False

As the rainforest canopy developed with very tall trees, other shorter trees began to die. The shorter trees began to die because

• the taller trees matured slower than the shorter trees.

• the shorter trees did not have enough air to exchange through their stomata.

• the taller trees provided better animal habitats.

• the shorter trees were no longer able to receive enough sunlight to survive.

Why might the desert be a poor habitat for deer? Select the best answer.

• The hot sand can burn the deer's hooves.

• Deer can't hide behind any rocks.

• Deer need grass to graze for food.

• Salt water in the desert streams is toxic to deer.

Some plants have flowers that curl up at night to protect them for cold temperatures. Which environment has plants that have this adapation?

• Rainforest

• Desert

• Tundra

• Swamp

Urushiol is a colorless or slightly yellow oil found in leaves, stems, and roots of poison ivy. The poison ivy plant contains this oil to

• defend itself against animals and predators

• make food through the process of photosynthesis

• Quickly germinate

• quickly reproduce more poison ivy.

Which environment has animals like lizards, scorpions, and jackrabbits and has plants like the cacti that adapt ways to conserve moisture?

• Tundra

• Rainforest

• Desert

• Swamp

During the winter many plants enter a period of

• Hibernation

• Camouflage

• Dormancy

Desert plants adapted to survive in their land environment. What adaptation did they make?

• They distribute nutrients differently.

• They release water more quickly.

• They have the ability to store water.

• A limited need for sunlight.

How do plants defend themselves from animals, insects, and disease? Select ALL that apply.

• Some are poisonous

• Some contain chemicals that repel insects.

• Some are pretty

• Some have thorns and spikes.

• Some taste good

Which is the best example of a plant responding to a changing season?

• Their leaves fall

• They have the ability to store water.

• The plant bends to collect sunlight

• A flower has color to attract bees and other polinators.