What is the role of phytoplankton in an aquatic ecosystem?

• Secondary consumer

• Tertiary consumer

• Producer

• Primary consumer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is NOT considered a trophic level?

• Tertiary consumer

• Sun

• Primary consumer

• Producer

Tags

NGSS.MS-LS2-3

In a food web, what trophic level do crickets occupy if they eat grass?

• Primary consumer

• Tertiary consumer

• Secondary consumer

• Producer

Tags

NGSS.MS-LS2-3

Why can a mouse be both a primary and secondary consumer?

• It does not eat at all

• It only eats animals

• It only eats plants

• It eats both plants and animals

Tags

NGSS.MS-LS2-3

If birds eat both corn and crickets, what trophic levels do they occupy?

• Tertiary consumers

• Only primary consumers

• Primary and secondary consumers

• Only secondary consumers

Tags

NGSS.MS-LS2-3

In a food web, what trophic level do sea turtles occupy if they eat secondary consumers?

• Quinary consumer

• Tertiary consumer

• Secondary consumer

• Primary consumer

What trophic level do insector birds occupy if they eat herbivorous insects?

• Quinary consumer

• Primary consumer

• Secondary consumer

• Tertiary consumer

Tags

NGSS.MS-LS2-3

Which of the following lists only secondary consumers in a food web?

• Hawk, rabbit, mountain lion

• Snake, frog, mountain lion, hawk

• Rabbit, deer, cricket

• Mountain lion, mouse

Which of the following is missing from the food web if it lacks bacteria and fungi?

• Producers

• Decomposers

• Predators

• Omnivores

Tags

NGSS.MS-LS2-3

What makes an organism an omnivore in a food web?

• Eating only plants

• Eating only animals

• Eating both plants and animals

• Not eating at all