Plant & Animal Interdependence Study Guide

What can scientists infer by finding this fossil?

• What color the animal was

• How big fish are today

• that a sea once covered the area

• what animal ate this fish

This fossil is millions of years old. What can you conclude?

• This was the most common animal at the time the rock formed.

• Animals lived at the time this fossil was formed.

• No life forms lived when the rock was formed.

• Humans lived when this rock was formed.

How might a food web change if a new plant were added?

• There might be fewer animals.

• There might be a decrease in herbivores.

• There might be a decrease in carnivores.

• The new plant might crowd out other plants.

Which is a living element in an ecosystem?

• clouds

• sunlight

• animals

• rocks

Which is a nonliving element in an ecosystem?

• air

• trees

• animals

• flowers

What do all animals need in order to survive?

• Food, water, sunlight, and air

• Food, water, shelter, and space

• warmth, fur, food, and air

• food, water, shelter, and rocks

Hummingbirds depend on flower nectar as the main part of their diet. How would a DECREASE in flowers most likely affect the population of hummingbirds, assuming they got no extra food from another source?

• The number of hummingbirds would increase.

• The number of hummingbirds could increase, then decrease.

• There would be no change in the number of hummingbirds.

• The number of hummingbirds would decrease.

Which of the following might you find in a grassland?

• cactus

• bison

• dolphin

• pine tree

What can scientists learn about this animal by studying this fossil?

• It was an herbivore (plant eater)

• It was a carnivore (meat eater)

• It was an omnivore (eats plants and meat)

• It was a brown dinosaur.

What can scientists learn from this fossil?

• It was a herbivore (plant eater)

• It was a carnivore (meat eater)

• It was an omnivore (eats both plants and animals)

• It had striped skin.