WorksheetsAice Marine Science period 7.
Total questions: 11
Worksheet time: 8mins
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
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.
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.
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
What is the Primary Producer ?
Shark
Phytoplankton
Small fish
tuna
In a pyramid of energy, the lowest level is always the widest
False
True
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
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
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.
Select the two ways in which energy enters marine systems.
Decomposition
Photosynthesis
Chemosynthesis
Colour
