Advertisements
Advertisements
प्रश्न
A ball of snow when rolled over snow increases in mass, volume and size. Is this comparable to growth as seen in living organisms? Why?
Advertisements
उत्तर
Yes, a snowball indeed gains mass, volume, and size; when it is rolled over. But in this case, the increase in the size of the ball is due to the accumulation of material from outside. In the case of growth in a living being, the growth happens because When the cell cycle is completed in the cell, i.e. meiosis and mitotic divisions leading to the generation of new protoplasm and nuclear mass, material accumulates inside the cells of organisms. As a result, the growth of a snowball differs from the growth of a live organism.
APPEARS IN
संबंधित प्रश्न
Why are living organisms classified?
What do we learn from identification of individuals and populations?
How is a key helpful in the identification and classification of an organism?
A particular plant is strictly seasonal plant. Which one of the following is best suited if it is to be studied in the laboratory?
A group of students found two cockroaches in the classroom. They had a debate whether they are alive or dead. Which life property will help them to do so?
Distinguish between botanical gardens, zoological park and biodiversity park with reference to characteristics.
Answer the following questions.
Riya found peculiar plant on her visit to Himachal Pradesh. What are the ways she can show it to her biology teacher and get information about it?
Answer the following questions.
At Andaman, authorities do not allow tourists to collect shells from beaches. Why it must be so?
What do you understand from terms like in situ and ex situ conservation?
Write a short note on Importance of botanical garden.
How can you, as an individual, prevent the loss of Biodiversity?
All living organisms are linked to one another because ______.
Which of the following is a defining characteristic of living organisms?
Define metabolism.
What is meant by living? Give any four defining features of life forms.
Do you consider a person in coma-living or dead?
What is the similarity and dissimilarity between “whole moong daal” and “broken moong daal” in terms of respiration and growth? Based on these parameters classify them into living or nonliving?
Some of the properties of tissues are not the constituents of its cells. Give three examples to support the statement.
