Question:
Write two important characteristics of sponges ?
Answer:
Important characteristics of sponges are:
- simplest multi-cellular animals.
- most of them are marine except spongilla which is fresh water.
- non-motile and attached to support
- organisms with holes or ‘pores’, all over the body with canal systems.
- canal system of the body helps in circulating water throughout the body to bring in food andoxygen.
- animals are covered with a hard outside layer or skeleton.
- body design involves very minimal differentiation and division into tissues.
Diversity in Living Organisms
Q 1.
Give examples of Arthropod animals.
Q 2.
On what bases are plants and animals put into different categories?
Q 3.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 4.
Name the kingdom which includes the simplest form of eukaryotes.
Q 5.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 6.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 7.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 8.
Give three examples of Protochordata animals.
Q 9.
Name five countries that lie in the region of megadiversity.
Q 10.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 11.
Name the simplest of plants that do not have a well-differentiated body design.
Q 12.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 13.
Minimal body design, have holes which lead to canal system that helps in circulating water, marine habitat. Which division of Animalia it refers to?
Q 14.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 15.
Why are Thallophytes called non-embryonic plants?
Q 16.
List important characteristics (at least three) of bryophytes.
Q 17.
Name a parasitic disease caused by members of Nematoda.
Q 18.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 19.
Give two examples of Bryophyta plants?
Q 20.
What type of circulatory system do Molluscs have?
Q 21.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 22.
Ambibian heart is divided into how many chambers?
Q 23.
Name a reptile which has four chambered heart.
Q 24.
How are pteridophytes different from the phanerogams?
Q 25.
What is the type of circulatory system present in Arthropods?
Q 26.
How do annelid animals differ from arthropods?
Q 27.
Amar, Ujala and Anara wrote the scientic name of mango as follows. Who wrote it correctly.
Amar - Mangifera Indica
Ujala - Mangifera indica
Anara - mangifera indica
Q 28.
Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Q 29.
Give two examples of Pteridophyes
Q 30.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 31.
Give three examples of Molluscs
Q 32.
Give three examples of animals belong to Echinodermata
Q 33.
Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Q 34.
What do you mean by biodiversity?
Q 35.
What is the primary reason for such a huge diversity we find in animals and plants?
Q 37.
Explain the basis for grouping organisms into five kingdoms.
Q 38.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 39.
In how many Phyla, the animal kingdom is divided into?
Q 40.
What are four main features of phylum coelenterates?
Q 41.
Which phylum is commonly called roundworms or pinworms?
Q 42.
What is a notochord? What does it do?
Q 43.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 44.
Who introduced the system of scientific nomenclature of organisms?
Q 45.
What is the mode of nutrition in Mushroom?
Q 46.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 47.
Give three examples of flightless birds.
Q 48.
Why is there a need for classification and systematic naming of living organisms?
Q 49.
Who wrote the book
The Origin of Species?
