Life Science Review

Which fact about the sagebrush plant is beneficial in supporting the structure of the plant and absorbing water for nutrients?

• leaves are covered with tiny hairs
• two sets of leaves during the year
• three levels of roots
• dull gray color

Ecosystems are made up of living and non-living elements which depend on each other for survival. Below are facts about earthworms. Which fact about the earthworm most benefits plants in their ecosystem?

• Fact 1
• Fact 2
• Fact 3
• Fact 4

Which of the following is NOT an example of living and non-living things interacting in their environment?

• Birds make nests in trees away from predators.
• Isopods burrow in the soil to find food
• Beavers cut down trees to build dams.
• Ghost crabs eat clams

In an ecosystem many organisms work together and each benefit from one another. Students record examples of this beneficial relationship in their journals. Which student DID NOT give an example of two organisms benefiting one another?

• Student 1 
• Student 2
• Student 3
• Student 4

When students observe the interactions within ecosystems, it can better help them understand many things about the environment.  Which of the following is NOT something the students can learn from their observations?

• how different species depend on each other
• what might happen if changes occur within the system.
• how animals interact with air, sunlight, and water.
• how many nutrients are found in a given amount of soil. 

Which of the following animals would most likely fit in a Texas coastal ecosystem?

• Kemp's Ridley Turtle
• Snow Leopard
• Beaver
• Spider Monkey

Some facts about the kestrel bird are listed below. Which answer choice best describes how the kestrel bird depends on other animals to survive?

• Facts 1 & 2
• Fact 2 only
• Facts 1 & 4
• Fact 1 only

Below is a diagram of an ecosystem. How do the plants in this ecosystem benefit from the animals? 

• The animals provide oxygen for the plants
• The animals provide water for the plants
• The animals provide carbon dioxide for the plants
• The animals provide shade for the plants

Bees fly from flower to flower and pollen sticks to their bodies. The image below shows this interaction. How does this interaction most benefit flowers?

• Bees are provided with nectar for food
• Flowers get pollen from other flowers which is needed to produce seeds.
• The bees provide oxygen for the flowers which is needed to produce more flowers.
• The pollen kills off the bees for its own protection

Students are studying how organisms interact with the elements in their ecosystem. The chart below lists some elements that are found in a coastal ecosystem. Which answer choice best completes the titles of the chart? 

• Animals and Survival Needs
• Living and Non-living
• Competition and Interactions
• Interactions and Populations