Unit 4 Alice Marine Science

Why can't phytoplankton survive hydrothermal vent?

• phytoplankton and other organismins harness sunlight , to create photosynthesis , near hydrothermal vent there is no sunlight

• Because of the heat from the hydrothermal vents , the phytoplankton wouldn't be able to survive

• It very hard to organisms to in the deep sea because of its extreme and harsh conditions

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

what is the mackerel tropic level?

• 2500

• 5

• 500

• 50

• 0.5

Who is the secondary consumer?

• the plankton , because it gets eaten by the zooplankton

• zooplankton, because it eats the plankton then gets eaten by the small fish.

• small fish, because it eats the zoo plankton which ate the plankton.

• The shark, which ate he small fish.

Tags

NGSS.MS-LS2-3

Why is the number of trophic levels that can exist limited?

• Because there is no predator to eat the Teritary consumers.

• A large amount of energy is lost at each level, so there has to be a limit on the number of trophic levels

• There wouldn't be anymore producers.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the keystone species?

• a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

• A new species of fish.

• Keys and stones have nothing to do with ecology

• A species that lives in or around rocks

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the Primary Producer ?

• Shark

• Phytoplankton

• Small fish

• tuna

Tags

NGSS.MS-LS2-3

In a pyramid of energy, the lowest level is always the widest

• False

• True

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Choose the correct sequence for energy flow within an ecosystem.

• producers -> carnivores -> herbivores -> scavengers

• herbivores -> producers -> carnivores -> scavengers

• producers -> herbivores -> carnivores -> scavengers

• producers -> herbivores -> scavengers -> carnivores

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances. what is the term of this definiton.

• Secondary consumer

• Pyramid of biomass

• Primary Production

• Tropic level

Tags

NGSS.MS-LS1-6

what is a producer

• a person, company, or country that makes, grows, or supplies goods or commodities for sale.

• Bacteria

• an organism, either a green plant or bacterium, which is part of the first level of a food chain.