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B2 - Science OCR Gateway Flashcards | StudBud
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B2 - Science OCR Gateway
B2 - Science OCR Gateway
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OCR gateway science B2
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
Which kingdom is made up mostly of single-celled organisms?
Plants
Fungi
Protoctista
Animals
2
Energy is lost when undigested food passes through animals and comes out as droppings. This is:
Egestion
Excretion
Efficiency
Respiration
3
Which leaf adaptation would NOT be suitable for a cold, dry environment (northern pine forest)?
Few pores on the leaves.
Leaves have a large surface area.
Thick wax on the surface of the leaves.
Small, needle-like leaves.
4
Which word best describes a relationship where both organisms gain some benefit?
Mutualism
Competition
Predator-prey
Parasitism
5
Which of these terms best describes the gradual change of an organism over time?
Evolution
Conservation
Adaptation
Competition
6
What does sustainable development mean?
Build lots of houses.
Keep using human workers instead of technology.
Use and replace resources without harming the environment
Keep animals in zoos so they don't go extinct
7
Why do African elephants have large ears?
To help keep them steady - for balance.
So they can hear their prey.
To aid heat loss by radiation and to fan the body.
To help them compete for a mate.
8
Which of these is NOT an effect of increasing human population?
Increase in animal habitats.
Increase in acid rain.
Increase in water pollution
Increase in global warming.
9
Which of these is NOT a method of conservation?
Poaching
Seedbanks
Education
Legal protection
10
Which of these would NOT be a suitable adaptation for a predator?
Speed
Have small numbers of young
Camouflage
Monocular vision
11
When decomposers digest dead and decaying matter, carbon dioxide is released by what process?
Photosynthesis
Combustion
Fossilisation
Respiration
12
Which organism is a primary consumer?
Kookaburra
Mouse
Grass
Snake
13
Which food web is represented by this pyramid of numbers?
Oak tree --> weevil --> woodpecker
Clover --> snail --> thrush
Grass --> rabbit --> flea
Snail --> thrush --> sparrowhawk
14
Which of these indicator species suggests that the air is clean and unpolluted?
Crusty lichen
Mayfly larvae
Bushy lichen
Rat-tailed maggot
15
What role does the wedged tailed eagle fulfill in the food web?
Primary consumer
Top carnivore
Producer
Herbivore
16
Which of these groups is NOT in the arthropod phylum?
Myriapods
Arachnids
Crustacea
Amphibians
17
Which of these groups of animals is the odd one out?
Cnidarians
Molluscs
Annelids
Vertebrates
18
Decomposers break down dead organisms into ammonia. What do nitrifying bacteria do?
Convert ammonia to nitrates and convert nitrates to nitrogen
Convert nitrates to ammonia and convert ammonia to nitrogen
Convert urea to ammonia.
Convert ammonia to urea.
