Living Organisms Exhibit Awareness

Q. Select the incorrectly matched pair with respect to asexual reproduction.

1. Budding - Hydra
2. Fragmentation - Yeast
3. Spores - Fungi
4. Regeneration - Planaria

Q.

Name the animals that hop.

Q.

Do you consider a person in coma-living or dead?

Q.

Can growth be considered as a defining feature of all living things without an exception

Q.

What is meant by living? Give any four defining features of life forms.

Q. Which of the following is an exclusive characteristic of living things?

1. Isolated metabolic reactions in vitro
2. Perception of events happening in the environment
3. Increase in mass
4. All of these

Q. State whether true or false:
Human beings are the only organisms who are aware of their surroundings.

1. True
2. False

Q.

The reaction to a stimulus is called

Q. Stimuli can be

1. Physical
2. Chemical
3. Biological
4. All of the above.

Q. Which of the following is a correct statement?

1. Isolated metabolic reactions in vitro are living things
2. Linnaeus coined the term taxonomy
3. Prokaryotes can sense and respond to environmental cues
4. Worker bees are sterile males

Q.

The NCERT defines living organisms as self replicating , evolving , self regulating interactive systems capable of responding to external stimuli. However , patients in coma who cannot respond to external stimuli are living . How is this definition justified?

Q.

Which of the following is a defining characteristic of living organisms?

(a) Growth

(b) Ability to make sound

(c) Reproduction

(d) Response to external stimuli

Q. An example of short tem adaptation is:

1. Hibernation in reptiles
2. Claws in Ostrich
3. Webbed feet of duck
4. Claws of pigeons

Q.

Animals undergo an inactive stage during the winter known as

1. Acclimatisation

2. Aestivation

3. Hibernation

4. Adaptation

Q. State whether true or false:
Human beings are the only organisms who are aware of their surroundings.

1. True
2. False

Q.

Define phenotypic adaptation. Give one example.

Q. Assertion (A): Cellular organisation of the body is the defining feature of life forms.
Reason (R): Isolated metabolic reactions are living reactions.

1. Both A and R are correct, and R is the correct explanation for A.
2. Both A and R are correct, but R is not the correct explanation for A.
3. Only A is correct and R is incorrect.
4. Both A and R are incorrect.

Q.

Differentiate between external and internal stimuli.

Q. Binomial nomenclature is

1. not applicable to cyanobacteria
2. not accepted by a number of countries
3. universal with one specific name to each organism
4. universal with two specific names to each organism

Q. Which is an exclusive characteristic of living beings

1. Increase in mass from inside only
2. Increase in mass by accumulation of material both on surface as well as internally
3. Perception of events happening in the environment and their memory
4. Isolated metabolic reactions occur in vitro

Q. Assertion (A): Cellular organisation of the body is the defining feature of life forms.
Reason (R): Isolated metabolic reactions are living reactions.

1. Both A and R are correct, and R is the correct explanation for A.
2. Both A and R are correct, but R is not the correct explanation for A.
3. Only A is correct and R is incorrect.
4. Both A and R are incorrect.

Q. Stimuli can be

1. Physical
2. Chemical
3. Biological
4. All of the above.

Q.

The stimulus received by an organism from within its body.

Q. If respond to stimulus is defining feture of life, then a non living stone should not respond by heating, breaking, etc when stimulus of heating, breaking, etc

Q. Lizards in one region developed longer leg bones to help it climb up during periods of flood and to escape predators in the ground. The given adaptation is an example of

1. Colouration
2. Physiological adaptations
3. Skeletal Adaptations
4. None of the above

Q. State whether the following statements are true or false .
All living things contain a vital force that gives them the characteristics of life.

1. True
2. False

Q. An example of short tem adaptation is:

1. Hibernation in reptiles
2. Claws in Ostrich
3. Webbed feet of duck
4. Claws of pigeons

Q. Total weight of haemoglobin in adult human body is around

1. 5.5 kg
2. 500 gm
3. 1.0 kg
4. 55 gm.

Q. Explain the two defense mechanisms evolved in preys to avoid over population of their predator.

Q. Metabolism is considered to be a defining feature, a feature which is found in all living organisms and absent in all non living ones. Bt metabolic rxs can also be performed in the non living environment that is in laboratory then how can it be a defining feature?