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 the plants that are called "
First vascular land plants".
Q 2.
Which region of the earth is called the region of megadiversity?
Q 3.
What is a notochord? What does it do?
Q 4.
Give three examples of organisms that are arthopods.
Q 5.
Give three examples of animals belong to Echinodermata
Q 6.
Name a reptile which has four chambered heart.
Q 7.
Leeches and Earthworms belong to which phylum?
Q 8.
How do annelid animals differ from arthropods?
Q 9.
Which worms cause elephantiasis. Name the group it belongs to?
Q 10.
Will advanced organisms be the same as complex organisms? Why?
Q 11.
Explain the basis for grouping organisms into five kingdoms.
Q 12.
How Angiosperms are divided further?
Q 13.
Write the differences between monocots and dicots.
Q 14.
Give examples of Porifera or Sponges.
Q 15.
Identify the phylum having following characteristics:
Q 16.
Which animal phylum is considered to be first triploblastic animals?
Q 17.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 18.
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 19.
What is the primary characteristic on which the first division of organisms is made?
Q 20.
What is the mode of nutrition in Mushroom?
Q 21.
Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.
Q 22.
Which division of plants are often called amphibians of the plant kingdom?
Q 23.
Give three examples of Protochordata animals.
Q 25.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 26.
How do poriferan animals differ from coelenterate animals?
Q 27.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 28.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 29.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 30.
Algae belongs to which division of Plantae?
Q 31.
Give two examples of Pteridophyes
Q 32.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 33.
Identify the Animalia group having following features:
Q 34.
What do you mean by biodiversity?
Q 35.
Why is there a need for classification and systematic naming of living organisms?
Q 36.
Who wrote the book
The Origin of Species?
Q 37.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 38.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 39.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 40.
Give two examples of Gymnosperms.
Q 41.
In how many Phyla, the animal kingdom is divided into?
Q 42.
What is the type of circulatory system present in Arthropods?
Q 43.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 44.
Name the kingdom which includes the simplest form of eukaryotes.
Q 45.
Name the simplest of plants that do not have a well-differentiated body design.
Q 46.
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 47.
Name the two groups of Plantae that are commonly called phanerogams.
Q 48.
Identify which of the following are monocots and dicots : garlic, onion, tomatoes, corn, peppers, potatoes, wheat, beans
Q 49.
Name the fish which is entirely made of cartilage.
Q 50.
Name the fish having skeleton made of both bone and cartilage.
