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Biology Past Questions

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135 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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135 questions

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Question 31

jamb 2023

Which of the following statements best describes pollination in plants?

APollination is the process of transferring pollen from the stigma to the anther of a flower

BPollination is the process of transferring pollen from the anther to the stigma of a flower

CPollination is the process of releasing pollen into the air for dispersal

DPollination is the process of seed formation within a flower

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Question 32

jamb 2023

Which of the following best describes the concept of trophic levels in a functioning ecosystem?

AThe levels of ecological interactions within an ecosystem

BThe levels of energy flow within an ecosystem

CThe levels of nutrient cycling within an ecosystem

DThe levels of biological diversity within an ecosystem

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Question 33

jamb 2023

Which of the following options correctly identifies excretory organs in animals?

AStomach, intestines, and bladder

BLungs, kidneys, and skin

CBrain, spinal cord, and nerves

DHeart, liver, and spleen

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Question 34

jamb 2023

Which of the following best describes physiological variation in biology?

AVariations in the physiological processes and functions of organisms

BDifferences in physical characteristics and appearance within a population

CDifferences in behavior and social interactions among individuals

DVariations in the genetic makeup of individuals within a species

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Question 35

jamb 2023

Which of the following statements best describes courtship behaviors in animals?

ACourtship behaviors are solely performed by males to establish dominance within a social group

BCourtship behaviors involve displays and rituals performed by both males and females to attract a mate

CCourtship behaviors are primarily performed by females to attract males for mating

DCourtship behaviors are aggressive interactions between males competing for a female mate

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Question 36

jamb 2023

Which of the following plant tissues is responsible for transporting water and nutrients from the roots to the rest of the plant?

AMesophyll

BXylem

CEpidermis

DPhloem

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Question 37

jamb 2023

Which of the following is a method of asexual reproduction in plants?

APollination

BVegetative propagation

CSeed dispersal

DFertilization

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Question 38

jamb 2023

Which of the following statements is true regarding sexual reproduction in organisms?

AIt involves the fusion of gametes from two parents, resulting in offspring with genetic variation

BIt involves the production of offspring through a single parent, resulting in genetically identical offspring

CIt is a form of asexual reproduction where offspring are produced without the involvement of gametes

DIt does not involve the formation of gametes or the fusion of reproductive cells

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Question 39

jamb 2023

Germination is the process in which a seed

ABegins to photosynthesize

BDevelops into a mature plant

CAbsorbs nutrients from the soil

DBreaks dormancy and starts to grow

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Question 40

jamb 2023

Which of the following eye defects is caused by the inability of the eye to focus light on the retina?

AGlaucoma

BMyopia

CCataracts

DAstigmatism

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Question 41

jamb 2023

Which of the following is the correct classification of carbohydrates?

ALipid

BPhytonutrient

CMacronutrient

DMicronutrient

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Question 42

jamb 2023

Which of the following organs is primarily responsible for excretion in humans?

ALiver

BPancreas

CKidneys

DLungs

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Question 43

jamb 2023

Metamorphosis is a biological process that involves

AThe growth and development of an organism from a zygote to an adult

BThe change in form and structure during the life cycle of certain organisms

CThe regeneration of lost body parts in an organism

DThe transformation of an organism from an adult stage to a larval stage

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Question 44

jamb 2023

Which of the following mechanisms is responsible for providing support in plants?

AMuscles and bones

BExoskeleton

CEndocrine system

DCell walls and turgor pressure

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Question 45

jamb 2023

Which of the following is a primary source of pollution in aquatic ecosystems?

ASoil erosion

BIndustrial discharge

CAir pollution

DDeforestation

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Question 46

jamb 2023

Which of the following is a plant hormone responsible for promoting cell elongation and growth?

AAbscisic acid

BGibberellins

CEthylene

DCytokinins

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Question 47

jamb 2023

Which of the following statements is true regarding sex-linked traits?

ASex-linked traits are located on the sex chromosomes

BSex-linked traits are inherited only from the mother

CSex-linked traits are more commonly observed in females

DSex-linked traits are not influenced by hormonal factors

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Question 48

jamb 2023

Which of the following statements best describes the role of competition in the process of adaptation?

ACompetition leads to the selection of individuals with favorable traits for survival and reproduction

BCompetition ensures equal distribution of resources among individuals in a population

CCompetition leads to the development of new traits and adaptations in a population

DCompetition reduces the need for adaptations as individuals coexist peacefully

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Question 49

jamb 2023

Which of the following describes the inheritance of traits from parents to offspring?

AAdaptation

BEvolution

CNatural selection

DGenetics

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Question 50

jamb 2023

Which of the following is the most inclusive level of classification in the Linnaean system?

AKingdom

BPhylum

CDomain

DClass

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