Advertisements
Advertisements
प्रश्न
Answer the following questions.
At Andaman, authorities do not allow tourists to collect shells from beaches. Why it must be so?
Advertisements
उत्तर
- Seashells are an important part of the coastal ecosystem and are crucial for the survival of various marine creatures.
- They provide material for building nests of birds and also act as a substratum for attachment of algae, sea grass, sponges and various microbes.
- Fishes use shells for hiding from predators, whereas hermit crabs use shells as temporary shelters.
- Removal of seashells from seashores may also indirectly affect the rate of shoreline erosion.
Hence, in an attempt to protect the ecosystem, authorities in Andaman do not allow tourists to collect shells from beaches.
APPEARS IN
संबंधित प्रश्न
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?
Write a short note on Importance of botanical garden.
Which of the following is a defining characteristic of living organisms?
Amoeba multiplies by mitotic cell division. Is this phenomena growth or reproduction? Explain.
Define metabolism.
Properties of cell organelles are not always found in the molecular constituents of cell organelles. Justify.
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?
