Biology

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Past Questions

Question 4521
waec 2020
a

diffusion

b

transpiration pull

c

osmosis

d

active transport

Question 4522
waec 2020
a

starch

b

fructose

c

glucose

d

sucrose

Question 4523
waec 2020
a

potassium

b

calcium

c

magnesium

d

copper

Question 4524
waec 2020
a

has no effect on the starch solution

b

leads to the production of amino acids

c

leads to the production of glucose

d

digest the starch

Question 4525
waec 2020
a

both organisms involved benefit

b

none of the organisms benefits or harm each other

c

both organisms harm each other

d

only one of the organisms is harmed

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