Question

 How many of the following organisms have a lifespan of more than 20 years?

Elephant, parrot, dog, rose, crow, banyan tree, crocodile

A. 3

B. 4

C. 5

D. 6

Answer 1

Hint: The average number of years that a group of persons who are born at the same time may be expected to live is known as lifespan. Over many past years, the death rate changed and the lifespan is based on the death rate.

Complete answer:

Reproduction specifically is defined as a biological process in which an organism gives rise to particularly young ones similar to itself and the offspring grow, mature and in turn produce new offspring, and this process is fairly constant which keeps the continuity of life on earth. Thus, their cycle of birth, growth, and death is essential in a major way. Reproduction enables the continuity of the species, generation after generation, which is fairly significant. The lifespan of a person, animal, or plant is the period of time for which they live or are normally expected to live or the period from birth to the natural death of an organism is known as the lifespan of that organism. The rough idea of life span of some animals are mentioned below:

Elephant Life span is from 40 to 75 years.

Parrot lifespan is from 100 to 140 years. 

Dog lifespan is from 10 to 13 years. 

Rose lifespan is from 5 to 7 years. 

Crow lifespan is upto 15 years. 

Banyan tree life span is upto 200 years.

Crocodile lifespan is upto 60 year. 

Hence the correct answer is option B. 

Note: The mammal with the longest lifespan is the bowhead whale and its lifespan is upto 200 years. Bowhead whales are also called arctic whale. 211 Years is the highest recorded age of bowhead whales. This bowhead whale is a big animal that lives in cold water. As the arctic whale lives in cold water it has a slow metabolism.