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 bryophytes.
Q 3.
Give examples of Arthropod animals.
Q 4.
What are naked-seeded plants are called?
Q 5.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 6.
What do you mean by biodiversity?
Q 7.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 8.
Write important features about Phylum Platyhelminthes.
Q 9.
How do poriferan animals differ from coelenterate animals?
Q 10.
Which division of plants are often called amphibians of the plant kingdom?
Q 11.
Who is known as the father of taxonomy?
Q 12.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 13.
In how many Phyla, the animal kingdom is divided into?
Q 14.
Differentiate between Annelida and Nematode.
Q 15.
What is the most striking feature of phylum Arthropoda?
Q 16.
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 17.
Give three examples of the range of variations that you see in lifeforms around you.
Q 18.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 20.
How do gymnosperms and angiosperms differ from each other?
Q 21.
What are the general characteristics found in all animals?
Q 22.
Which animal phylum is considered to be first triploblastic animals?
Q 23.
Why are Bats and whales classified as mammals?
Q 24.
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 25.
Do Protozoans have eyes?
Q 26.
Name the simplest of plants that do not have a well-differentiated body design.
Q 27.
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 28.
Give an example of marsupial mammal
Q 29.
Give an example of mammal that can fly.
Q 30.
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 31.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 32.
What are the uses of bryophytes?
Q 33.
On what basis plants are divided into two sub-kingdoms?
Q 34.
How are pteridophytes different from the phanerogams?
Q 35.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 36.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 37.
Give two examples of Pteridophyes
Q 38.
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 39.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 40.
Identify the Animalia group having following features:
Q 41.
Give three examples of Molluscs
Q 42.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 43.
Name the fish which is entirely made of cartilage.
Q 44.
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 45.
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 46.
Give examples of egg laying mammals
Q 48.
What is the primary reason for such a huge diversity we find in animals and plants?
Q 49.
On what bases are plants and animals put into different categories?
Q 50.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
