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.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 2.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 3.
Why do we classify organisms?
Q 4.
How Phanerogams are divided further chiefly?
Q 5.
Give examples of organisms which belong to Phylum Protochordata.
Q 6.
Why are Bats and whales classified as mammals?
Q 7.
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 8.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 9.
Who wrote the book
The Origin of Species?
Q 10.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 11.
Write the differences between monocots and dicots.
Q 12.
Identify the division of Plantae having following characteristics:
i. Seeds not enclosed within fruit.
ii. Flowers represented as cones (unisexual)
iii. Ovules not located in ovary.
Q 13.
Give examples of egg laying mammals
Q 14.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 15.
What are naked-seeded plants are called?
Q 16.
Which animal phylum is commonly called as flatworms?
Q 17.
Write important features about Phylum Platyhelminthes.
Q 18.
Which is the largest group of animals?
Q 19.
Give three examples of animals belong to Echinodermata
Q 21.
Name a parasitic disease caused by members of Nematoda.
Q 22.
Name the largest group (phylum) of animals.
Q 23.
Name the phylum to which Start fish and Sea urchin belong to?
Q 24.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 25.
Name the kingdom which includes the simplest form of eukaryotes.
Q 26.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 27.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 28.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 29.
Give three examples of Molluscs
Q 30.
Give three examples of Protochordata animals.
Q 31.
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 32.
How do gymnosperms and angiosperms differ from each other?
Q 33.
Give examples of animals belong to Nematoda.
Q 34.
Give examples of Arthropod animals.
Q 35.
How do annelid animals differ from arthropods?
Q 36.
Give examples of animals that belong to Phylum Mollusca.
Q 37.
What is a notochord? What does it do?
Q 38.
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 39.
Algae belongs to which division of Plantae?
Q 40.
Name the two groups of Plantae that are commonly called phanerogams.
Q 41.
Name a reptile which has four chambered heart.
Q 42.
Which do you think is a more basic characteristic for classifying organisms?(a) the place where they live.(b) the kind of cells they are made of. Why?
Q 44.
On what basis plants are divided into two sub-kingdoms?
Q 45.
How Angiosperms are divided further?
Q 47.
Give examples of Porifera or Sponges.
Q 48.
Animals belong to phylum Coelenterata are diploblastic. What do you mean by the term diploblastic?
Q 49.
How do poriferan animals differ from coelenterate animals?
Q 50.
Differentiate between Annelida and Nematode.
