Question:
Write important features about Phylum Platyhelminthes.
Answer:
- Mostly parasitic
- First simplest triploblastic animals i.e. having three layers of body cells.
- Bilaterally symmetrical
- No true internal body cavity or coelom
- Body is dorsoventrally flattened
- Examples: Planaria, Liverfluke, Tapeworm
Diversity in Living Organisms
Q 1.
Which region of the earth is called the region of megadiversity?
Q 2.
Name the plants that are called "
First vascular land plants".
Q 3.
Give three examples of animals belong to Echinodermata
Q 4.
Name a reptile which has four chambered heart.
Q 5.
Leeches and Earthworms belong to which phylum?
Q 6.
How do annelid animals differ from arthropods?
Q 7.
What is a notochord? What does it do?
Q 8.
Which worms cause elephantiasis. Name the group it belongs to?
Q 9.
Give three examples of organisms that are arthopods.
Q 10.
Will advanced organisms be the same as complex organisms? Why?
Q 11.
Which animal phylum is considered to be first triploblastic animals?
Q 12.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 13.
What is the primary characteristic on which the first division of organisms is made?
Q 14.
What is the mode of nutrition in Mushroom?
Q 15.
Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.
Q 16.
Which division of plants are often called amphibians of the plant kingdom?
Q 17.
Give three examples of Protochordata animals.
Q 18.
Explain the basis for grouping organisms into five kingdoms.
Q 20.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 21.
How Angiosperms are divided further?
Q 22.
Write the differences between monocots and dicots.
Q 23.
Identify the phylum having following characteristics:
Q 24.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 25.
Who wrote the book
The Origin of Species?
Q 26.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 27.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 28.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 29.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 30.
Name the simplest of plants that do not have a well-differentiated body design.
Q 31.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 32.
Name the two groups of Plantae that are commonly called phanerogams.
Q 33.
Give two examples of Pteridophyes
Q 34.
Identify the Animalia group having following features:
Q 35.
Name the fish which is entirely made of cartilage.
Q 36.
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 37.
What do you mean by biodiversity?
Q 38.
Why do we classify organisms?
Q 39.
Why is there a need for classification and systematic naming of living organisms?
Q 40.
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 41.
Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Q 42.
Name the organisms which are outside the classification.
Q 43.
(a) What are saprophytes?
(b) Name the kingdom to which they belong.
(c) What is the cell wall of fungi made up of?
Q 44.
Give examples of Thallophyta plants.
Q 45.
Why bryophytes are called the amphibians of the plant kingdom?
Q 46.
List important characteristics (at least three) of bryophytes.
Q 47.
How Phanerogams are divided further chiefly?
Q 48.
Give examples of Porifera or Sponges.
Q 49.
How do poriferan animals differ from coelenterate animals?
Q 50.
Which phylum is commonly called roundworms or pinworms?
