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Worksheets[BGCS] The Fourth Quarter Test
Total questions: 21
Worksheet time: 11mins
Ocean acidification begins with ___.
Untreated chemical pollution from ships
Dumping of waste from cities into the ocean
Too much carbon dioxide released from combustion
Primary succession occurs in areas with: ___.
soil that has been disturbed
no soil
fertilized soil
lots of soil
Corals form symbiotic relationships with microscopic photosynthetic algae that live in their cells and give the corals their distinct colors. In this relationship, both species benefit, what is this ecological relationship?
Competition
Mutualism
Predation
Parasitism
Marine organisms make their shells from calcium and ____, and carbon dioxide and seawater combine to form ____.
chloride, carbonic acid
carbonate, carbon monoxide
chloride, calcium carbonate
carbonate, carbonic acid
Choose THREE examples of marine organisms that needs calcium carbonate to form their skeleton or shell:
oyster
octopus
crab
shark
sea urchin
Why are coral reefs sometimes called "rainforests of the sea"?
They help reduce pollution
Because they are home to many different species of marine organisms
They keep the water cold
They provide food for humans
_____ is rock debris embedded in base of ice create polishing, grooves and striations.
Plucking
Abrasion
Erosion
Weathering
Which of the following has the highest albedo?
ocean
ground
Ice in the Arctic or Antarctic
road
Recall the video experiment result, and answer: which one cause greater rise in water level, land ice or sea ice?
Sea ice (the frozen ocean water)
Land ice (the glaciers & ice sheets on the land)
Choose the abiotic factors in the figure below.
duck
deer
wind
water
rock
Choose "secondary consumer" in the food chain showing in the figure.
plants
insects
frogs
snakes
hawks
In the food chain shown in the figure, mouse is___ and ___.
producer, and 2nd trophic level
secondary consumer, 3rd trophic level
primary consumer, 3rd trophic level
tertiary consumer, 2nd trophic level
Starfish are probably the most important predator in the shallow ecosystem because they eat basically anything that they can come across. Their feeding activities control the whole ecosystem, which it's their___ in the ecosystem.
habitat
niche
population
tolerance level
if both bay grass and algae gain energy from the sun totally 5000 J, how much energy can fish get? How much energy can third trophic level organisms get? (hint: 10% rule)
500 J, 50 J
5 J, 50 J
5 J, 5000 J
1 J, 10 J
If the fox population doubled, which populations would decrease in size as a direct result?
Birds and caterpillars
Chipmunks and caterpillars
Birds and chipmunks
Snakes and Birds
Choose the two reasons that increase the population size.
birth
immigration
emigration
death
In the graph , what is the carrying capacity for the deer population in that environment?
20
50
70
80
Mudflow cause a group of elephants gets stuck in mud at the edge of the river, couple hours later, some of them died. Mudflow is considered as ___ that affects the population of elephants in this scenario.
density-independent limiting factor
density-dependent limiting factor
Tropical orchids grows on high branches of a tree to obtain sunlight, while the trees are not affected by the orchids. Which ecological relationship between them?
Predation
Mutualism
Competition
Parasitism
Commensalism
Sea lamprey stays in the fish body to get blood for survival. (Sea Lamprey got food, while fish was harmed.) Which ecological relationship between them?
Predation
Competition
Commensalism
Parasitism
Mutualism
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