Question:
Define Cryptograms.
Answer:
- Cryptograms are plants with hidden (inconspicuous) reproductive organs.
- The thallophytes, the bryophytes and the pteridophytes collectively called cryptograms.
- External flowers or seeds are absent and they have naked embryos called spores.
Diversity in Living Organisms
Q 1.
Give examples of Arthropod animals.
Q 2.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 3.
On what bases are plants and animals put into different categories?
Q 4.
Name the kingdom which includes the simplest form of eukaryotes.
Q 5.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 6.
List important characteristics (at least three) of bryophytes.
Q 7.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 8.
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 9.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 10.
Give three examples of Protochordata animals.
Q 11.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 12.
Name a parasitic disease caused by members of Nematoda.
Q 13.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 14.
Name the simplest of plants that do not have a well-differentiated body design.
Q 15.
Ambibian heart is divided into how many chambers?
Q 16.
Name five countries that lie in the region of megadiversity.
Q 17.
What are four main features of phylum coelenterates?
Q 18.
What is the type of circulatory system present in Arthropods?
Q 19.
Who introduced the system of scientific nomenclature of organisms?
Q 20.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 21.
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 22.
Give two examples of Bryophyta plants?
Q 23.
Give two examples of Pteridophyes
Q 24.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 25.
Name a reptile which has four chambered heart.
Q 26.
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 27.
What do you mean by biodiversity?
Q 28.
Why is there a need for classification and systematic naming of living organisms?
Q 29.
Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Q 30.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 31.
(a) What are saprophytes?
(b) Name the kingdom to which they belong.
(c) What is the cell wall of fungi made up of?
Q 32.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 33.
Why are Thallophytes called non-embryonic plants?
Q 34.
How are pteridophytes different from the phanerogams?
Q 35.
How Angiosperms are divided further?
Q 36.
How do annelid animals differ from arthropods?
Q 37.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 38.
What type of circulatory system do Molluscs have?
Q 39.
Give three examples of animals belong to Echinodermata
Q 40.
Give three examples of flightless birds.
Q 41.
Give three examples of the range of variations that you see in lifeforms around you.
Q 43.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 44.
How Phanerogams are divided further chiefly?
Q 45.
Give two examples of Gymnosperms.
Q 46.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 47.
Which animal phylum is commonly called as flatworms?
Q 48.
What is a notochord? What does it do?
Q 49.
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 50.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
