Biology Past Questions

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Past Questions

5,032 questions
Question 1 of 20 5,032 total questions
Question 341
waec 2020

Soil with the finest texture is?

Asilt
Bclay
Csand
Dgravel
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Question 342
waec 2020

The diagram below is an illustration of an ecological instrument. Study it an answer the question below;

The diagram above illustrates an ecological instrument. Study it  and answer the question below;   A disadvantage... - Myschool

When the instrument is in use, it is usually? 

Aplaced slightly above soil level
Bplaced on a table
Csuspended in air
Dsuspended to moving water
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Question 343
waec 2020

The diagram above illustrates an ecological instrument. Study it and answer the question below;

 

A disadvantage of the abiotic factor measured by the instrument is that it

 

Ais an agent of pollination
Bis necessary for germination
Cleads to flooding when in excess
Dis used for irrigation
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Question 344
waec 2020

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

 

The number of lions and antelops in habitat Y shows that the lion 

Ais the prey while the antelope is the predator
Bis the predator while the antelope is the prey
Cand the antelope are preys to each other
Dand the antelopes are predators
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Question 345
waec 2020

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

 

Which of the following statements about habitat W is correct? The 

Aabsence of lions and antelopes shows that the habitat is terrestrial
Bpresence of Tilapia and planktons shows that the habitat is not aquatic
Ctype of organisms present indicate that habitat is aquatic
Dabsence of grasses indicates that the habitat is terrestrial
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Question 346
waec 2020

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

What type of habitat is W?

 

ARainforest
BPond
CDesert
DOcean
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Question 347
waec 2020

The mutualism type of relationship is different from a parasitic relationship because in mutualism

Aboth organisms involved benefit
Bnone of the organisms benefits or harm each other
Cboth organisms harm each other
Donly one of the organisms is harmed
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Question 348
waec 2020

Which of the following statements about a mixture of a protein-digesting enzyme and starch solution would be correct? The protein-digesting enzyme

Ahas no effect on the starch solution
Bleads to the production of amino acids
Cleads to the production of glucose
Ddigest the starch
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Question 349
waec 2020

An example of a trace elements is

Apotassium
Bcalcium
Cmagnesium
Dcopper
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Question 350
waec 2020

The first stable product of photosynthesis is

Astarch
Bfructose
Cglucose
Dsucrose
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Question 351
waec 2020

Oxygen comes out of the stomata during photosynthesis through the process known as 

Adiffusion
Btranspiration pull
Cosmosis
Dactive transport
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Question 352
waec 2020

The reagent used in testing for carbon (IV) oxide is 

Acopper sulphate solution
Blime water
Chydrochloric acid
Dsodium hydroxide solution
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Question 353
waec 2020

The diagram below is an illustration of a part of a flower. Study it and answer the question below.

 

The diagram is an illustration of a part of a flower. Study it and answer  the... - Myschool

 

 

The part labeled II is the 

Aunfused stigma
Bfused style
Cfused ovaries
Dunfused anther
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Question 354
waec 2020

The diagram is an illustration of a part of a flower. Study it and answer the question below;

 

The function of the part labeled I is 

Areceiving the pollen grain
Battract pollinators
Cgermination of the pollen grain
Dsite for double fertilization in the plant
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Question 355
waec 2020

What happens when the ciliary muscles of the eye contract? The 

Alens become more concave
Blens become more convex
Clens gets a longer focal length
Dsuspensory ligament becomes tight
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Question 356
waec 2020

The part of the central nervous system that controls unconscious actions in humans is the 

Acerebellum
Bcerebrum
Cspinal cord
Doptic nerves
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Question 357
waec 2020

The properties of endocrine system include the following except 

Asecretion of hormones
Btransportation by blood to target organ
Chaving specific effect
Drelease of secretion into ducts
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Question 358
waec 2020

The part of the mammalian kidney that stores urine is the 

Acapsule
Bmedulla
Cpelvis
Dbladder
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Question 359
waec 2020

The excretory product of some reptiles, birds and insects is

Aurea
Burine
Cammonia
Duric acid
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Question 360
waec 2020

The respiratory organ of a cockroach

Aair sac
Btrachea
Clung book
Dlung
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