Question:
List important characteristics (at least three) of bryophytes.
Answer:
Characteristics of bryophytes:
- The plant body is differentiated to form stem and leaf-like structures.
- These are considered first true plants.
- These are called amphibians of the plants since they live in soil and water both.
- There is no specialised tissue for the conduction of water and other substances from one part of the plant body to another (no vascular system).
- An embryo is formed upon fertilisation. Water is necessary for fertilisation.
Diversity in Living Organisms
Q 1.
Name a reptile which has four chambered heart.
Q 2.
Give examples of Arthropod animals.
Q 3.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 4.
How is a body of Arthropods segmented?
Q 5.
Give three examples of Protochordata animals.
Q 6.
Name five countries that lie in the region of megadiversity.
Q 7.
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 8.
Give examples of bryophytes.
Q 9.
Name the plants that are called "
First vascular land plants".
Q 10.
Differentiate between Annelida and Nematode.
Q 11.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 12.
What is the primary characteristic on which the first division of organisms is made?
Q 13.
Name the two groups of Plantae that are commonly called phanerogams.
Q 14.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 15.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 16.
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 17.
Give examples of egg laying mammals
Q 18.
What do you mean by biodiversity?
Q 19.
What are the advantages of classification?
Q 20.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 21.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 22.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 23.
Why bryophytes are called the amphibians of the plant kingdom?
Q 24.
List important characteristics (at least three) of bryophytes.
Q 25.
How Phanerogams are divided further chiefly?
Q 26.
How Angiosperms are divided further?
Q 27.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 28.
Write two important characteristics of sponges ?
Q 29.
Which animal phylum is commonly called as flatworms?
Q 30.
Give examples of animals belong to Nematoda.
Q 31.
Name the phylum to which Start fish and Sea urchin belong to?
Q 32.
Give examples of organisms which belong to Phylum Protochordata.
Q 33.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 34.
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 35.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 36.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 37.
Identify the Animalia group having following features:
Q 38.
What type of circulatory system do Molluscs have?
Q 39.
Name the fish having skeleton made of both bone and cartilage.
Q 40.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 41.
Give three examples of flightless birds.
Q 42.
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 43.
Give an example of mammal that can fly.
Q 44.
Which region of the earth is called the region of megadiversity?
Q 45.
Will advanced organisms be the same as complex organisms? Why?
Q 46.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 47.
Explain the basis for grouping organisms into five kingdoms.
Q 48.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 49.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 50.
On what basis plants are divided into two sub-kingdoms?
