Species and Population Questions and Answers

Species and Population MCQ (Multiple Choice Questions and Answers)

Question 1: Population means

(A) All the animals of a place

(B) All the animals and plants found in an area

(C) Human beings living in an area

(D) Animals/plants of a species living in a specific area

Answer: (D)

Question 2: Species ecology is

(A) Autecology

(B) Synecology

(C) Community ecology

(D) Paleoecology

Answer: (A)

Question 3: Population whose members reproduce asexually is

(A) Panmictic

(B) Species

(C) Amphimictic

(D) Apomictic

Answer: (D)

Question 4: Population whose members reproduce asexually is

(A) Panmictic

(B) Apomictic

(C) Amphimictic

(D) Species

Answer: (C)

Question 5: Ecotype is

(A) Genetically different but phenotypically similar

(B) Genetically similar but ecologically different individuals

(C) Genetically adapted ecological race

(D) Genetically and phenotypically dissimilar members of different species ecologically adapted to an area

Answer: (C)

Question 6: Family herd and tribe are units

(A) Higher in rank than a population

(B) Higher in rank than a species

(C) Intermediate between a local population and species

(D) Subordinate in rank to local population

Answer: (D)

Question 7: Average height of a Watusi tribesman is

(A) 1.4 m

(B) 2.2 m

(C) 1.2 m

(D) 1.6 m

Answer: (B)

Question 8: Liger is

(A) Natural hybrid between lion and tigress

(B) Natural hybrid between tiger and lioness

(C) Fertile hybrid between captive lion and tigress

(D) Fertile hybrid between captive tiger and lioness

Answer: (C)

Question 9: The factors involved in formation of new species are

(A) Competition and variations

(B) Isolation and competition

(C) Competition and mutations

(D) Isolation and mutations

Answer: (D)

Question 10: An animal leading a solitary life is

(A) Deer

(B) Seal

(C) Fox

(D) Hamster

Answer: (D)

Question 11: An animal which lives in flocks is

(A) Deer

(B) Monkey

(C) Elephant

(D) Parrot

Answer: (D)

Question 12: Animal found in herds is

(A) Deer

(B) Swan

(C) Parrot

(D) Monkey

Answer: (A)

Question 13: A monogamous animal is

(A) Seal

(B) Deer

(C) Swan

(D) Hamster

Answer: (C)

Question 14: A polygamous animal is

(A) Rat

(B) Deer

(C) Fox

(D) Wolf

Answer: (B)

Question 15: The occurrence of two forms of individuals in the same species is known as

(A) Differentiation

(B) Dimorphism

(C) Monoecious

(D) Polymorphism

Answer: (B)

Question 16: Physalia shows

(A) Polymorphism

(B) Dimorphism

(C) Trimorphism

(D) Metamerism

Answer: (A)

Question 17: Family formation is common feature in

(A) All animals

(B) Majority of animals

(C) Almost all animals

(D) A few animals

Answer: (D)

Question 18: Rats have

(A) Monogamy

(B) Polygamy

(C) Polyandry

(D) No fixed partners

Answer: (D)

Question 19: Presence of different types of flowers in male and female Mulberry/Palm/Papaya is

(A) Dichogamy

(B) Dimorphism

(C) Bisexuality

(D) Monoecious nature

Answer: (B)

Question 20: The dominant individual/leader of the herd is

(A) Always a male

(B) Always a female

(C) Generally a male

(D) Generally a female

Answer: (C)

Question 21: Altruistic behavior occurs in

(A) Spotted Deer

(B) Termite

(C) Honey Bee

(D) All the above

Answer: (D)

Question 22: Cooperative interaction is essential for perpetuation of

(A) Microorganisms

(B) Plants

(C) Animals

(D) Both B and C

Answer: (D)

Question 23: On being attacked by predator, the cheetals surround a stag with best antlers for its protection. It is

(A) Dominance-subordination

(B) Altruism

(C) Competitive interaction

(D) Group formation

Answer: (B)

Question 24: Emigration influences population of

(A) Land plants

(B) Land and aquatic plants

(C) Animals

(D) Animals and plants

Answer: (C)

Question 25: In terrestrial organisms, population density is expressed in space units

(A) Cubic metre

(B) Cubic centimetre

(C) Metre

(D) Square metre

Answer: (D) 

Question 26: In acquatic organisms, population density is expressed in space units

(A) Cubic metre/ cubic centimetre

(B) Metre

(C) Kilometre

(D) Square metre/square centimetre

Answer: (A)

Question 27: The factor which does not determine the population size is

(A) Mortality

(B) Emigration

(C) Migration

(D) Immigration

Answer: (C)

Question 28: Migration is

(A) Outward movement of individuals

(B) Inward movement of individuals

(C) Two-way departure and return of all the individuals

(D) Starvation based mortality

Answer: (C)

Question 29: Population size in an area tends to increase on account of

(A) Emigration

(B) Mortality

(C) Migration

(D) Natality

Answer: (D)

Question 30: Insect society is product of

(A) Instinctive behaviour

(B) Biological evolution

(C) Learnt behaviour

(D) Both A and B

Answer: (D)

Question 31: Human society is product of

(A) Learnt behaviour

(B) Biological evolution

(C) Instinctive behaviour

(D) Both A and B

Answer: (A)

Question 32: A permanent loss from population can be due to

(A) Immigration

(B) Emigration

(C) Migration

(D) All the above

Answer: (B)

Question 33: Emigration is

(A) Going out of some individuals to return after some time

(B) Temporary inward movement of some individuals

(C) Permanent outward movement of some individuals from a population

(D) Permanent inward movement of some individuals into a population

Answer: (C)

Question 34: The most thinly populated country of the world is

(A) Australia

(B) Austria

(C) Maldives

(D) Canada

Answer: (A)

Question 35: The most thickly populated country of the world is

(A) Japan

(B) Indonesia

(C) India

(D) China

Answer: (A)

Question 36: Which one is larger?

(A) Territory

(B) Defended area

(C) Home range

(D) Nesting and nursing area

Answer: (C)

Question 37: Boundary of a territory is marked by

(A) Defaecation

(B) Phermones present in excreta

(C) Excreta

(D) Urination

Answer: (B)

Question 38: An animal would defend

(A) Territory

(B) Home range

(C) Feeding area

(D) Both A and B

Answer: (A)

Question 39: Territory is defended against

(A) Any intruder

(B) Predator

(C) Intruder of same species

(D) Intruder of species having same feeding habits

Answer: (C)

Question 40: Chemicals used for transmitting messages to members of same species are

(A) Allochemics

(B) Kairomones

(C) Auxins

(D) Phermones

Answer: (D)

Question 41: Lemmings reduce their numbers by committing suicides every

(A) Eight years

(B) Alternate years

(C) Four years

(D) Two years

Answer: (C)

Question 42: Which factor maintains the distinctive traits of species?

(A) Specific niche

(B) Reproductive isolation

(C) Cooperative interaction

(D) Continuois intercommunication

Answer: (B)

Question 43: Waggle dance of a honeybee is an example of

(A) Courtship

(B) Threatening adversaries

(C) Communication for feeding site

(D) Communication for imminent danger

Answer: (C)

Question 44: Competetion between individuals of a population is

(A) Intraspecific

(B) Interspecific

(C) Internecine

(D) Local

Answer: (A)

Question 45: Study of inter-relationships between organisms and their environment is

(A) Ecology

(B) Ecosystem

(C) Phytogeography

(D) Ethology

Answer: (A)

Question 46: Study of inter-relationships between a species/individuals and its environment in a forest is

(A) Synecology

(B) Forest ecology

(C) Autecology

(D) Ecology

Answer: (C)

Question 47: Ecology is connected with the study of

(A) Environment factors

(B) Plant adaptations

(C) Effect of plants on environment

(D) All the above

Answer: (D)

Question 48: Study of inter-relationships between an entire community and its environment is

(A) Autecology

(B) Resourse ecology

(C) Species ecology

(D) Synecology

Answer: (D)

Question 49: Synecology is study of inter-relationships between environment and

(A) Individual plant

(B) A population

(C) A community

(D) Individual animal

Answer: (C)

Question 50: Individuals of a species which occur in a particular area constitute

(A) Flora

(B) Fauna

(C) Population

(D) Flora and fauna

Answer: (C)