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Biology Past Questions

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351 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

351 questions

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Question 171

neco 2000

Which material is NOT necessary for the manufacture of plant food?

Acarbon(iv)oxide

Bchloropyll

Coxygen

Dsunlight

Ewater

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Question 172

neco 2000

Which of the following agricultural activities has the least harmful effect on the environment ?

Aapplication of fertilizers

Bpracticing crop rotation

Cpracticing monocropping

Dspraying herbicides

Espraying pesticides

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Question 173

neco 2000

When a student suddenly runs into a snake on a pathway, which of these chemical messengers are released ?

Aadrenaline

Binsulin

Coestrogen

Dtestosterone

Ethyroxine

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Question 174

neco 2000

A common characteristic of ALL living things is

Agametogenesis

Bhibernation

Cphotosynthesis

Dphototropism

Erespiration

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Question 175

neco 2000

An organism existing at the colonial level of life is

Achlamydomonas

Beuglena

Cparamecium

Dspirogyra

Evolvox

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Question 176

neco 2000

Root pressure and the transpiration pull are biophysical processes which account for the?

Aascent of water into leaves

Bexchange of gases at leaf surfaces

Cmovement of manufactured food from leaves to storage tissues

Dopening and closing of stomata

ERelease of energy from glucose molecules

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Question 177

neco 2000

Which statement about decomposers is NOT true?

AThey are saprophytes

BThey carry on intra-cellular digestion

CThey facilitate the cleansing of the environment

DThey facilitate the recycling of nutrients

EThey form a link between autotrophs and heterotrophs

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Question 178

neco 2000

Which of these pairs best illustrates symbiotic association?

Adodder on green plants

Bferns growing on palm trees

Clice on hair of mammals

Dsea anemone attached to hermit crab

Etick found on body of cow

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Question 179

neco 2000

The process which ensures that the chromosome number for each species of organism remains constant from generation to generation is called

Afission

Bfusion

Cmeiosis

Dmitosis

Eoogenesis

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Question 180

neco 2000

Which of the following sequences best illustrates a food chain in an aquatic habitat ?

Aalgae → fungi → toad → snake

Bdiatoms → tadpole → fish → kingfisher

Cgrass → grasshopper → toad → whale

Dphytoplankton → fish → snake → kingfisher

Ezooplankton → tadpoles → fish → kingfisher

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Question 181

neco 2000

The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed

Aamoeboids

Bcentrifugal motion

Cciliary motion

Dcyclosis

Eosmosis

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