Diversity in Living Organisms Chapter 7 Class 9 Science Worksheets

Students should practice questions given in Diversity in Living Organisms Chapter 7 Class 9 Science Worksheets. These worksheets for Class 9 Science have a good collection of important questions and answers which are expected to come in your class tests and examinations. You should learn these solved worksheet questions for Science Class 9 as it will help you to understand all topics and give you more marks.

Class 9 Science Worksheets Chapter 7 Diversity in Living Organisms

Please refer to below questions and answers for Diversity in Living Organisms Chapter 7 Class 9 Science Worksheets. Prepared by expert teachers for Standard 9 Science

Question. Name the kingdom which includes monerans

Question. Give examples of the organism belonging to Monera and Protista kingdom.

Question. Name the appendages used for movement by organism belonging to Protista kingdom.

Question. Who proposed the two kingdom classification?

Question. How are pores or holes all over the body of Porifera important?

Question. Name the 5 kingdoms of living organisms.

Question. Give example of two fish which have skeleton made up of both bone and cartilage.
Tuna and rohu.

Question. If you are provided seeds of gram, wheat, rice,pumpkin, maize and pea. Classify these as Monocots/Dicots.

Question. What is lichen?

Question. What are Monerans?

Question. What is symbiotic relationship?

Question. What are symbionts?

Question. What is saprophytic nutrition?

Question. What is evolution?

Question. Give simple classification of plant kingdom.

Question. Name the plant amphibian.

Question. What are cryptogamae?

Question. Give examples of pteridophyte.

Question. Name the reproductive organ of plants.

Question. Which divisions of the plant kingdom are called cryptogams? Why are they called so?

Question. What are gymnosperms?

Question. Why bryophytes and pteriodophytes grow in moist and shady places?

Question. What are angiosperms?

Question. What are cotyledons?

Question. Define radial symmetry.

Question. What is the meaning of triploblastic?

Question. What is bilateral symmetry?

Question. What is biodiversity?

Question. What do you mean by “cold-blooded animals”?

Question. Write the name of three mammals that live in water.

Question. Name a fish with skeleton made up of cartilage.

Question. Who made 1st attempt for scientific basis of classification?

Question. Name parasitic flagellated protozoan.

Question. Name the disease caused by Trypanosoma.

Question. On what morphological criteria Aristotle classified the plants?

Question. Name the 2 kingdoms of classification?

Question. What are prokaryotes? Give one example for prokaryote.

Question. What are Eukaryotes? Give an example of Eukaryotes?

Question. Name the writer who wrote the book “The Origin of Species”.

Question. Who proposed the classification of organisms into 5 kingdoms?

Question. Give the characteristics of Protista.
Answer.
(a) Organisms are unicellular and eukaryotic.
(b) Locomotion is possible by using parts like cilia, flagella, etc.
(c) Nutrition is either autotrophic or heterotrophic.
(d) E.g., algae, protozoa.

Question. What are hermaphrodites? Give two examples.
Answer. Hermaphrodites are the organisms that have both the sexes. Thus, it can produce both sperms and eggs and called hermaphrodites. Example : Sponges, earthworms.

Question. Give the difference between radial and bilateral symmetry.
Answer.

Question. Due to global warming coral is getting diminished in all the oceans/ water bodies. People in Lakshadweep island protects their corals by not allowing people/ tourist to take few pieces away.
(a) Name the phylum of coral.
(b) What is coral made up of?
(c) What values of people in Lakshadweep island is reflected?
Answer.
(a) Phylum of coral is coelenterata.
(b) Coral is made up of calcium carbonate.
(c) People in Lakshadweep island reflect the value of being responsible (Citizen, respecting environment and nature).

Question. Differentiate between vertebrates and invertebrates.
Answer.

Question. Write the two characteristic features of kingdom protista?
Answer.
(1) All are single celled eukaryotes.
(2) It includes plant protists (photosynthetic protozoan) and animal protozoan’s (protista).
(3) Some prostistan members have flagella or cilia as locomotary organs.
(4) Protists reproduce asexually by binary fission and sexually by a process involving cell fission and zygote formation.

Question. Name the phylum of the following animals :
(a) Tapeworm
(b) Starfish
(c) Jellyfish
(d) Octopus
Answer.
(a) Tapeworm — Platyhelminthes
(b) Starfish — Echinodermata
(c) Jellyfish — Coelenterata
(d) Octopus — Mollusca

Question. State the features of all chordates.
Answer.

Figure: Amphioxus
All chordates possess the following features :

1. Have a notochord
2. Have a dorsal nerve chord
3. Are triploblastic
4. Bilaterally symmetrical body
5. Respire through lungs on land and through gills in water

Question. A group of students had gone for educational trip clicked photographs of endangered plants. These photographs were used by the school laboratory to study these plants.
(i) Name two endangered plants.
(ii) Name any one medicinal plant and give its medicinal use.
Answer.
(i) Two endangered plants are Euphrasia and Ubnus rubra.
(ii) Aloe-vera : Juice of Aloe-vera is used in case of indigestion, treating skin infection, etc.

Question. Give general characteristics of ‘Platyhelminthes’.
Answer.

(a) Flatworms
(c) Triploblastic animal
(b) Parasitic mode of nutrition
(d) No true internal body cavity
Example : Tapeworm, planaria, liver fluke.

Question. Give general characteristics of Porifera.
Answer.
(a) Animals with pores all over the body.
(b) Body is not well differentiated.
(c) Non-motile animals remain attached to solid support.
(d) Body is covered with hard outer skeleton. Example : Sponges.

Question. Give the characteristics of Monera.
Answer.
(a) Organisms are unicellular and do not have a defined nucleus.
(b) Some organisms can have cell wall while some cannot.
(c) Cell organelles are not covered with double membrane.
(d) Autotrophic or Heterotrophic.

Figure: Monera Family

Question. Give the characteristics of Arthropoda with 2 examples.
Answer.(a) Arthropoda means jointed legs.
(b) Animals are bilaterally symmetrical and segmented.
(c) It has an open circulatory system.
(d) This is the largest group of animals.
Examples : Spider, scorpions, crabs, house flies.

Question. Give the difference between thallophyta and bryophyta.
Answer.

Question. Give the difference between monocots and dicots.
Answer.

Question. Write the general characteristics of kingdom – fungi.
Answer.
(1) The fungi are the unique heterotrophic organisms either saprophytic or parasitic or symbiotic.
(2) The fungi are cosmopolitan in distribution and occur in air, water, soil and on plants and animals.
(3) They are unicellular (yeast) or multicellular, eukaryotic organisms.
(4) Fungi are filamentous and the body consisting of long, slender thread-like structures called hyphae, may be coenocytes hyphane or septate hyphore.
(5) The network of hyphae in fungi is called mycelium.
(6) The cell walls of fungi are composed of chitin and polysaccharides.
(7) Reproduction in fungi can take place by three methods :
(a) Vegetative
(b) Asexual
(c) Sexual reproduction.

Question. What is the importance of classification?
Answer. Classification is important because :
(a) Classification makes the study of wide variety of organisms systematic and easier.
(b) It projects a picture of all organisms and their interrelation with each other.
(c) It provides a base for the study of other branches of biology.
(d) It is useful in the study of ecology, which deals with the inter-relation of an organism with their environment.
(e) It helps to establish a hierarchy of groups of organisms.

Question. What are the characteristic features of mammals?
Answer. Characteristic features of mammals :
(a) Body is covered with hair.
(b) Skin is provided with sweat and sebaceous glands.
(c) Heart is four-chambered.
(d) Fertilization is internal.
(e) Females have mammary glands to produce milk to nourish their young ones.
(f) External ear–pinna present.
(g) Eyes have eye lids.
(h) Warm-blooded.
(i) Respiration through lungs.

Question. What are the characteristic features of reptiles?
Answer.
The characteristics of reptiles :
(a) Dry scaly, impermeable skin.
(b) Respiration through lungs.
(c) Cold-blooded
(d) Internal fertilization.
(e) Heart is three chambered.
(f) Two pairs of pentadactyl limbs are present.

Question. What is the basis for classification of organisms?
Answer.
The basis for classification are :
(a) Presence or absence of nucleus.
(b) Organisms are unicellular, or multicellular.
(c) Autotrophic mode of nutrition or heterotrophic mode of nutrition.
(d) Of the organisms that perform photosynthesis (plants), their level, or organisation of the body.
(e) Of the animals, how does the individuals body develop and organise its different parts.

Question. Give difference between algae and Fungi ?
Answer.

Question.Give the classification of plant kingdom.
Answer.

Question. Give difference between Cryptogamae and Phanaerogamae.
Answer.

Download Free Worksheets for Chapter 7 Diversity in Living Organisms Class 9 Science

Worksheet for Class 9 Science Diversity In Living Organisms Animals

Worksheet for Class 9 Science Diversity in Living Organisms assignment

Worksheet for Class 9 Science Diversity In Living Organisms Plants

Worksheet for Class 9 Science Diversity In Living Organisms