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.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 2.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 3.
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 4.
What are naked-seeded plants are called?
Q 6.
Identify plant group which has parallel venation, scattered vascular bundles, flower petals/parts in multiple of three, fibrous roots.
Q 7.
Why do we classify organisms?
Q 8.
On what basis plants are divided into two sub-kingdoms?
Q 9.
How Phanerogams are divided further chiefly?
Q 10.
What are the general characteristics found in all animals?
Q 12.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 13.
Algae belongs to which division of Plantae?
Q 14.
Ambibian heart is divided into how many chambers?
Q 15.
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Q 16.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 17.
In which kingdom you will place an organism which is multicellular, eukaryotic, non-green heterotroph or saprophytic, lacks chlorophyll and has an absorptive mode of nutrition?
Q 18.
Give examples of Arthropod animals.
Q 19.
How do annelid animals differ from arthropods?
Q 20.
Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?
Q 21.
Give two examples of Bryophyta plants?
Q 22.
Give two examples of Pteridophyes
Q 23.
Identify which of the following are monocots and dicots : garlic, onion, tomatoes, corn, peppers, potatoes, wheat, beans
Q 24.
Will advanced organisms be the same as complex organisms? Why?
Q 25.
In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
Q 26.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 27.
What are the uses of bryophytes?
Q 28.
In how many Phyla, the animal kingdom is divided into?
Q 29.
What is the most striking feature of phylum Arthropoda?
Q 30.
What kind of circulatory system is found in animals from Mollusca phylum?
Q 31.
Why are Bats and whales classified as mammals?
Q 32.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 33.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 34.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 35.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 36.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 37.
Which is the largest group of animals?
Q 38.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 39.
No scales on skin, mucus glands on skin, three chambered heart, respiration through gills, lungs and skin, oviparous, live on land and in water. Name the group of these vertebrates.
Q 40.
Give three examples of flightless birds.
Q 41.
What do you mean by biodiversity?
Q 42.
Who is known as the father of taxonomy?
Q 43.
Who wrote the book
The Origin of Species?
Q 44.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 45.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 46.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 47.
Give examples of Thallophyta plants.
Q 48.
Why are Thallophytes called non-embryonic plants?
Q 49.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 50.
Identify the phylum having following characteristics:
