Question:
What are four main features of phylum coelenterates?
Answer:
Main features of phylum Coelenterata:
- Aquatic habitat (marine + freshwater)
- radially symmetrical
- Show more body design differentiation.
- Sac-like body cavity (coelenteron) with a single opening to the outside for ingestion and egestion.
- First of multicellular animals which possess tissue level organisation with a distinct division of labour.
- Body wall made up of two layers (diploblastic), of which outer is called ectoderm and inner is endoderm. Between these two layers found jelly like substance mesoglea.
- Surrounding the mouth tentacles are found, that helps in locomotion and to catch the prey.
- Some of the species live in colonies (corals), while others have a solitary life-span (Hydra).
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.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 5.
Give three examples of Protochordata animals.
Q 6.
Give examples of bryophytes.
Q 7.
How is a body of Arthropods segmented?
Q 8.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 9.
List important characteristics (at least three) of bryophytes.
Q 10.
Which animal phylum is commonly called as flatworms?
Q 11.
Differentiate between Annelida and Nematode.
Q 12.
Name the phylum to which Start fish and Sea urchin belong to?
Q 13.
Give examples of organisms which belong to Phylum Protochordata.
Q 14.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 15.
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 16.
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 17.
What do you mean by biodiversity?
Q 18.
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Q 19.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 20.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 21.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 22.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 23.
What are the general characteristics found in all animals?
Q 24.
Write two important characteristics of sponges ?
Q 25.
Which animal phylum is considered to be first triploblastic animals?
Q 26.
Write important features about Phylum Platyhelminthes.
Q 27.
Give examples of animals belong to Nematoda.
Q 28.
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 29.
Who introduced the system of scientific nomenclature of organisms?
Q 30.
Name the two groups of Plantae that are commonly called phanerogams.
Q 31.
Identify plant group which has parallel venation, scattered vascular bundles, flower petals/parts in multiple of three, fibrous roots.
Q 32.
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 33.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 34.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 35.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 36.
What are the advantages of classification?
Q 38.
Who is known as the father of taxonomy?
Q 39.
Name five countries that lie in the region of megadiversity.
Q 41.
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 42.
Name the plants that are called "
First vascular land plants".
Q 43.
How Phanerogams are divided further chiefly?
Q 44.
Give two examples of Gymnosperms.
Q 45.
Identify the phylum having following characteristics:
Q 46.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 47.
Name the substance which makes the cell wall of fungi.
Q 48.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 49.
What is the primary characteristic on which the first division of organisms is made?
Q 50.
Name the kingdom which includes the simplest form of eukaryotes.
