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there are enough nutrients in the water in the summer
This is question
Sorry, that is incorrect.
All the choices contribute to phytoplankton growth in the Antarctic Summer.
Antarctic Ecosystem
there is enough sunlight for photosynthesis nearly 24 hours a day
You have correctly answered
Yes! That is correct.
All the choices contribute to phytoplankton growth in the Antarctic Summer.
the sea ice melts, so sunlight can reach further into the water
What phenomenon causes phytoplankton growth in the Antarctic summer?
5 of 6
all of the above
Correct!
You got
out of
6
Try again?
right
Yes! That is correct.
The Antarctic Circumpolar Current is driven by strong westerly winds and creates some of the roughest seas in the world that are notorious to sailors.
salinity
Finish
the gulf stream
strong westerly winds
6 of 6
hurricanes
The Antarctic Circumpolar Current (ACC) is driven by:
Sorry, that is incorrect.
The Antarctic Circumpolar Current is driven by strong westerly winds and creates some of the roughest seas in the world that are notorious to sailors.
tourism
commercial hunting and fishing
Over the last century, some large animals in Antarctica’s abundant ecosystem decreased in number. The main reason is:
photosynthesis
Yes! That is correct.
Commercial hunting and fishing has decreased the number of large animals in Antarctica over the last century.
Sorry, that is incorrect.
Commercial hunting and fishing has decreased the number of large animals in Antarctica over the last century.
2 of 6
pollution
krill
squid
seals
Yes! That is correct.
Adélie penguins consume krill a the dominant part of their diet, but they also eat other animals such as mid-water fish and amphipods.
Sorry, that is incorrect.
Adélie penguins consume krill a the dominant part of their diet, but they also eat other animals such as mid-water fish and amphipods.
3 of 6
algae
Adélie penguins consume what animal as the dominant part of their diet?
4 of 6
What extremely productive organism is at the bottom of the Antarctic food chain?
penguins
Yes! That is correct.
Phytoplankton, which blooms in the summer, is the bottom of the Antarctic food chain.
Sorry, that is incorrect.
Phytoplankton, which blooms in the summer, is the bottom of the Antarctic food chain.
phytoplankton
Why are there times in summer near the poles when the sun doesn’t set all night?
1 of 6
because in the summer the sun is shaded by the moon
because in summer, the sun is directly overhead everywhere on Earth
because Antarctica is near the equator
Yes! That is correct.
The tilt of the Earth on its axis keeps the poles pointed toward the sun in summer 24 hours a day.
because the tilt of the Earth on its axis keeps the poles pointed toward the sun in summer 24 hours a day
Sorry, that is incorrect.
The tilt of the Earth on its axis keeps the poles pointed toward the sun in summer 24 hours a day.