Animal Migration and Food Chains

What is the primary reason many animals move from northern to southern regions starting in September?

• They are seeking warmer climates as the northern regions become too cold.

• They are migrating to find more abundant food sources.

• They are hibernating because the weather in the northern states is getting too cold.

Why do bears eat more food and chipmunks gather seeds to store for later?

• These animals are getting ready to hibernate through the winter months.

• These animals are preparing to travel long distances and need energy for the trip.

• These animals are preparing for a drought, and their food sources will dry up.

Why do birds choose to migrate during certain seasons?

• To find warmer climates and more food sources.

• To escape from predators.

• To find new nesting sites.

What environmental condition might lead a plant to enter dormancy?

• There is not enough water.

• It is preparing to produce seeds.

• Insects are feeding on the plant.

During the dry season in the African Savannah, why do large groups of zebras and other animals travel together to find a source of water?

• All animals need water to survive.

• Animals migrate to find rain.

• They are searching for fish to eat.

What is the primary reason monarch butterflies travel to the South?

• To escape cold weather

• To meet other monarchs

• To gather nesting materials

Students built a terrarium so they could study the physical charatneriscs of an environment support a community. It contains plants, grass , crickets, water, and a lizard.

Which organism in the terrarium shown above starts the flow of energy through the food chain?

• Cricket

• Water

• Grass

• Lizard

Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem shown above? Choose 2

• Grasshopper ⟶ bird ⟶ rodent ⟶ buffalo

• Hawk ⟶ snake ⟶ mouse ⟶ grasshopper

• Grasshopper ⟶ mouse ⟶ snake ⟶ hawk

• Snake ⟶ hawk ⟶ skunk ⟶ mouse

In the ecosystem shown, which organisms are expected to flourish, or do well, if finches are eliminated?

• Grass

• Grasshopper

• Snake

• Hawk

The roadrunner is a desert bird that eats fruits and seeds. It also eats insects, spiders, scorpions, and rattlesnakes.

What would likely happen if the roadrunner population disappeared from its ecosystem?

• There would be no more fruits or seeds.

• There would be a decrease in spider populations.

• The rattlesnake population would stay the same.

• There would be an increase in scorpion populations.