BT101 Practice Questions

BT101 MCQ’s FOR FINALS PREPRATION

Q1. The term ecology was invented by the Ernst Haeckel in

1. 1865
2. 1866
3. 1867

Correct answer: 1866

Q2. A group of organisms of the same species that live in the same area at the same time called

1. Community
2. Ecosystem
3. Population

Correct answer: Population

Q3. Biomes are often defined by which factors

1. Biotic
2. Abiotic

Correct answer: Abiotic

Q4. Prokaryotes can be divided into two domains

1. Viruses and bacteria
2. Archaea and bacteria
3. Archaea and viruses

Correct answer: Archaea and bacteria

Q5. A catfish species in a pond usually shares the pond with other fish species, and with plants, insects, ducks, and many other species that make up the

1. Population
2. Specie
3. Community
4. Ecosystem

Correct answer: Community

Q6. The term "ecosystem" was first used by

1. Arthur Tansley
2. Ernst Haeckel

Correct answer: Arthur Tansley

Q7. Producers are

1. Heterotroph
2. Autotroph

Correct answer: Autotroph

Q8. Which one is example of decomposers

1. Plants
2. Bacteria
3. Animals

Correct answer: Bacteria

Q9. Which one is example of chemical components of environment

1. Air
2. Water
3. Oxygen
4. Light

Correct answer: Oxygen

Q10. A pattern of living of species is called

1. Habitant
2. Niche

Correct answer: Niche

Q11. horseshoe crab is the example of

1. Generalist specie
2. Native specie
3. Non-native specie
4. Specialist specie

Correct answer: Generalist specie

Q12. One species of cockroach can survive being frozen for

1. 24 hours
2. 30 hours
3. 32 hours
4. 48 hours

Correct answer: 48 hours

Q13. In only a year, a single Asian cockroach and its offspring can add about how many new cockroaches to the world.

1. 10 million
2. 1 million
3. 7 million
4. 20 million

Correct answer: 10 million

Q14. Those species that normally lives and thrives in a particular ecosystem called

1. Generalist specie
2. Native specie
3. Non-native specie
4. Specialist specie

Correct answer: Native specie

Q15. Introduction of non native species is a major cause of--------

1. Diversity
2. Evolution
3. Species loss
4. Invasive species

Correct answer: Species loss

Q16. Species that are deliberately or accidently introduced into an ecosystem ?

1. Native species
2. Non native species
3. Indigenous species
4. Endemic species

Correct answer: Non native species

Q17. Non native species also known as

1. Exotic species
2. Invasive species
3. Alien species
4. All

Correct answer: All

Q18. Species are introduced in the new environment by -- ways

1. One
2. Two
3. Three
4. Four

Correct answer: Two

Q19. Intentional introduction is done for which cause?

1. Economical gain
2. Neutralization societies
3. A and B
4. None

Correct answer: A and B

Q20. When species are introduced by human vectors it is called

1. Unintentional introduction
2. Intentional introduction
3. Both
4. None

Correct answer: Unintentional introduction

Q21. What is the impact of non-native species?

1. Diversity
2. Habitat loss
3. Ecosystem disturbance
4. B and c

Correct answer: B and c

Q22. Non-native species that have a potential to cause economic or environmental harm to humans are

1. Endemic species
2. Invasive species
3. Endangered species
4. Extinct species

Correct answer: Invasive species

Q23. Grass carp is a great ------ source

1. Carbohydrate
2. Lipids
3. Protein
4. Fats

Correct answer: Protein

Q24. In 1957,who imported wild African bees to help increase honey production?

1. India
2. Brazil
3. Africa
4. China

Correct answer: Brazil

Q25. Species that provide early warnings of damage to a community or an ecosystem ?

1. Non native species
2. Endangered species
3. Indicator species
4. Keystone species

Correct answer: Indicator species

Q26. The presence or absence of trout species in water at temperatures within their range of tolerance is an indicator of

1. Water level
2. Water nutrients
3. Water quality
4. Water abundance

Correct answer: Water quality

Q27. Plants or lichens sensitive to heavy metals or acids in precipitation may be indicators of ?

1. Water pollution
2. Air pollution
3. Land pollution

Correct answer: Air pollution