Organism

Q. Small animals are rarely found in polar regions because _________.

1. they rapidly lose heat due to their large surface area compared to volume
2. they rapidly lose heat due to their small surface area compared to volume
3. they slowly gain heat due to their large volume compared to surface area
4. they slowly lose heat due to their small surface area compared to volume

Q. Assertion: Consciousness is considered as the defining property of living organisms.

Reason: All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental stimuli.

1. Both assertion and reason are true and reason is the correct
   explanation of assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false

Q.

Autecology is the:

1. Relation of a population to its environment

2. Relation between a species and its environment

3. Relation of a community to its environment

4. Relation of a biome to its environment

Q.

The study of the relation of an organism with its environment is called

1. Autecology

2. Herpetology

3. Bionomics

4. Synecology

Q. Assertion: Living organisms are regarded as closed systems.
Reason: Energy of living organisms can be lost to or gained from external environment

1. Assertion is true but reason is false
2. Assertion is false and reason is true
3. Both assertion and reason are true and the reason is the correct explanation of assertion
4. Both assertion and reason are true but reason is not the correct explanation of assertion

Q. The basic unit of ecological hierarchy exhibits which of the following attributes?

1. Birth rate
2. Birth
3. Sex ratio
4. Both a and b

Q. The basic unit of study in ecology is

1. community
2. species
3. organism
4. population

Q.

Autecology refers to

1. An ecological study of a group of species, which is grown together

2. Animal ecology

3. Ecological study of individual species.

4. Plant ecology

Q. In the living things, growth

1. From outside
2. Happens from inside
3. Both A and B
4. None of these

Q. Basic component of any ecological system is the .

1. community
2. population
3. organism
4. biome

Q. The basic unit of study in ecology is

1. population
2. organism
3. community
4. species

Q. The ecological niche of population is a

1. Geographical area that it covers
2. Place where it lives
3. Set of conditions and resource it uses
4. None of the above

Q. Niche overlap indicates-

1. Active cooperation between two species
2. Two different parasites on the same host
3. Sharing of one or more resources between the two species
4. Mutualism between two species

Q.

The basic unit of study in ecology is

1. Organism

2. Population

3. Species

4. Community

Q. Autecology is the?

1. Relation of a population to its environment
2. Relation of an individual to its environment
3. Relation of a community to its environment
4. Relation of a biome to its environment

Q. Which of the following is the characteristics of a living organism?

1. Metabolism
2. Homeostasis
3. Adaptation
4. All of the above

Q. Life exists in

1. Frigid poles of the Earth
2. Human Gut
3. Geothermal Vents
4. All of these
5. The depths of the ocean

Q. The term niche of a species refers to

1. Specific and habitual function.
2. Specific place where an organism lives and performs its duty.
3. Competitive power of an organism.
4. Specific function of organism.

Q. Niche overlap indicates

1. Sharing of one or more resources between the two species
2. Mutualism between two species
3. Active cooperation between two species
4. Two different parasites on the same host

Q. 1. Glomus aureus was found to form an association with the plant irrespective of the presence of other species.
2. Glomus virdis formed an association with the plant only in the presence of another species of Glomus.
3. Glomus lobatus formed an association with Abies only when no other species of Glomus was present.
4. Diaspora spectabil is formed an association with the plant in the presence of Glomus virids only.

Q. Life exists in

1. The depths of the ocean
2. Frigid poles of the Earth
3. Geothermal Vents
4. Human Gut
5. All of these

Q. It has been said that life violates the second law of thermodynamics. What observations led to such a statement? Why is the statement untrue?

Q. Assertion: Living organisms are regarded as closed systems.
Reason: Energy of living organisms can be lost to or gained from external environment

1. Both assertion and reason are true and the reason is the correct explanation of assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Assertion is true but reason is false
4. Assertion is false and reason is true

Q. The pattern of ecosystem in which density and distribution of species vary along a horizontal gradient is

1. Ecological niche
2. Speciation
3. Zonation
4. Stratification

Q.

Autecology is the:

1. Relation of a population to its environment

2. Relation between a species and its environment

3. Relation of a community to its environment

4. Relation of a biome to its environment