Which of the following organisms is a primary producer in the marine ecosystem?

• Sea turtle

• Jellyfish

• Phytoplankton

• Crab

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is the role of tertiary consumers in a marine food web?

• To produce energy from sunlight

• To consume primary consumers and secondary consumers

• To decompose dead organisms

• To act as primary producers

Tags

NGSS.MS-LS2-3

What is the role of secondary consumers in a marine food web?

• To produce energy from sunlight

• To act as primary producers

• To consume primary consumers

• To decompose dead organisms

Tags

NGSS.MS-LS2-3

What is the impact of high biodiversity on a marine food web?

• It decreases the stability of the ecosystem

• It increases the resilience and stability of the ecosystem

• It reduces the number of primary producers

• It makes the ecosystem more vulnerable to changes

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is a herbivorous consumer in the marine environment?

• Sharks

• Zooplankton

• Sea stars

• Dolphins

What happens to the energy that is not transferred to the next trophic level?

• It is stored in the organism

• It is lost as waste, movement energy, and heat

• It is used to produce more organisms

• It is transferred back to the producers

Tags

NGSS.MS-LS2-3

What is the effect of removing a keystone species from a food web?

• A minor change in the food web

• No effect on the food web

• A major change, potentially causing collapse

• An increase in biodiversity

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is a characteristic of food webs with low biodiversity?

• They are more stable

• They are more vulnerable to changes

• They are less vulnerable to changes

• They have more keystone species

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is the primary function of a food web diagram?

• To show the size of organisms

• To measure the speed of energy transfer

• To display the color of organisms

• To illustrate 'what eats what' in a habitat

Tags

NGSS.MS-LS2-2

What role do apex predators play in maintaining the balance of a marine ecosystem?

• They control the population of herbivores and smaller predators

• They increase the population of producers

• They convert sunlight into energy

• They decompose dead organisms

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4