No individual is immortal except:

(1) Single celled organisms

(2) Green plants

(3) Sponges

(4) Drones

Which among the following is immortal

A. Sea algae

B. Amoeba

C. Plants grown by vegetative propagation

D. Every living organism is mortal

Life span of an organism

1. Does not include the phase of senescence

2. Is not necessarily correlated with body size of organism

3. Is very short in a unicellular organism like Amoeba

4. Includes accidental death of organism also

Select incorrect statement with respect to life span.

a. It is the period from the reproductive phase to the senescent phase.

b. Life spans of organisms are not necessarily correlated with their sizes.

c. No individual is immortal, whether single-celled or multi-celled.

d. The life span of banana tree is 25 years.

1. a & d

2. a & b

3. a & c

4. c & d

Life span of parrot is 

(1) 140 years

(2) 60 years

(3) 80 years

(4) 40 years

Which of the following is a false statement?

(1) All organisms have evolved similar mechanism to multiply and produce offsprings

(2) Asexual reproduction is uniparental

(3) Sexual reproduction is biparental

(4) In asexual reproduction no fertilization occurs

Individuals of a clone:

(1) Are genetically similar but morphologically different

(2) Are morphologically similar but genetically different

(3) Are morphologically and genetically similar

(4) Are genetically and phenotypically different

In biological world each organism has evolved its own mechanism of reproduction, which depends upon?
1. Habitat
2. Internal physiology
3. Size of organism
4. Both 1 and 2

There are various types of reproduction. The type of reproduction adopted by an organism depends on:

A.The habitat and morphology of the organism

B.Morphology of the organism

C.Morphology and physiology of the organism

D.The organism’s habitat, physiology and genetic makeup

Mark the correct statement ( with respect to reproduction)

1. A biological process to produce new offsprings

2. Enables the continuity of the species, generation after generation

3. Incorporates genetic variations and makes the basis of evolution

4. More than one option is correct