Natural resources: -
Question’s-
1. how do fossil fuels cause air pollution?
2. How can we prevent the loss of topsoil?
3. How is the life of organisms living in water affected when water gets polluted?
4. During summer, if you go near a lake, you feel relief from the heat, why?
5. Soil formation is done by both a biotic and biotic factors. List the name of these factors by classifying them as abiotic and biotic?
6. All the living organisms are made up of C, N, S, P, H&O. How do they enter the living forms? Discussed?
7. Why does the percentage of gases like oxygen, nitrogen and carbon dioxide remain the same in the atmosphere?
8. Why does the water need conservation even though large oceans surround the landmasses?
9. There is mass mortality of fish is in a pond. What may be the reasons?
10. soil is formed by water. If you agree to the statement, then give reasons.
11. Why step farming is common in hills?
12. Why are root nodules useful for the plants?
13. How do fossil fuels cause air pollution?
14. What are the causes of water pollution? Discuss how you can contribute to reducing water pollution.
15. Carbon dioxide is necessary for plants. Why do we consider it as a pollutant?
Diversity in living organisms: -
Questions: -
1. A poor bearing organisms like creature a belongs to a phylum be of Kingdom animalia identify A and B.
2. Homo sapiens is the scientific name of human beings. What do these two terms imply?
3. name two egg laying mammals?
4. Which division among plants has the simplest organisms?
5. Why is it difficult to classify bacteria? Give two reasons.
6. What are cryptograms? Why are they called so?
7. What is meant by warm blooded and cold-blooded animals?
8. On what basis are plants and animals put into distinct categories?
9. Explain the basis for grouping organisms into five kingdoms
10. Explain triploblastic animals and open circulatory systems
11. Give appropriate term for each of the following:
a) Complex sugar that makes fungal cell wall
b) Plants which bear naked seeds
c) Blue green algae
d) Basic unit of classification
e) Group of unicellular eukaryotic organism
12. Who introduced the system of scientific nomenclature of organisms?
13. Give examples for.
a) Bilateral, dorsiventral symmetry is found in___________.
b) Warms causing disease elephantiasis is|__________.
c) Open circulatory system is found in___________where coelom cavity is filled with blood
d) ______are known to have pseudocoelom.
Answers
Answer:
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DIVERSITY IN LIVING ORGANISMS:
1. In Kingdom animalia , the pore bearing phylum is phylum porifera. So, B is porifera.
2. Homo sapiens was derived from the Latin word, which refers to "a wise man". Homo refers to the human being, which refers to wise or knowing.
3. Only two kinds of egg-laying mammals are left on the planet today—the duck-billed platypus and the echidna, or spiny anteater.
4. Thallophyta
5. Because bacteria are too small to classify and it needs more higher microscope to do that.
6. They are classified as cryptogams, because it is difficult to see their reproductive organs.
7. Cold-blooded animals are the animals that are not capable of regulating their body's temperature according to the temperature of the surrounding.
8. Mode of nutrition
9. The basis of grouping organisms into five kingdoms is as follows: ... Unicellular eukaryotes form the kingdom Protista, and multicellular eukaryotes form the kingdom of Fungi, Plantae, and Animalia.
10. triploblastic animals are means for the animal that has three layers in embryonic phase. and that three layers are ectoderm endoderm and mesoderm. The open circulatory system means for the circulatory system where the bloods are not flow in the blood vessels means the blood is flowing openly.
11.
(a) Chitin
(b) Gymnosperms
(c) Blue green algae - Cyanobacteria
(d) Species
(e) Protista
12. Carolus Linnaeus
13.
(a) Liver fluke
(b) Lymphatic filariasis
(c) Hemocoel
(d) Nematodes