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.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 2.
Why do we classify organisms?
Q 3.
Name the phylum to which Start fish and Sea urchin belong to?
Q 4.
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 5.
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 6.
Which is the largest group of animals?
Q 7.
Give examples of egg laying mammals
Q 8.
What are naked-seeded plants are called?
Q 9.
Write the differences between monocots and dicots.
Q 10.
Name the largest group (phylum) of animals.
Q 11.
Why are Bats and whales classified as mammals?
Q 12.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 13.
Give three examples of Molluscs
Q 14.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 15.
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 16.
Who wrote the book
The Origin of Species?
Q 17.
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 18.
On what basis plants are divided into two sub-kingdoms?
Q 19.
How Phanerogams are divided further chiefly?
Q 20.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 21.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 22.
What is the primary characteristic on which the first division of organisms is made?
Q 23.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 24.
Give examples of animals belong to Nematoda.
Q 25.
What is the type of circulatory system present in Arthropods?
Q 26.
Name the kingdom which includes the simplest form of eukaryotes.
Q 27.
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 28.
Give three examples of animals belong to Echinodermata
Q 29.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 30.
Write important features about Phylum Platyhelminthes.
Q 31.
Give examples of organisms which belong to Phylum Protochordata.
Q 32.
List three important characteristics of Phylum Protochordata.
Q 33.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 34.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 35.
Name a reptile which has four chambered heart.
Q 36.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 37.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 38.
Give examples of bryophytes.
Q 39.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 40.
Which animal phylum is commonly called as flatworms?
Q 41.
Name a parasitic disease caused by members of Nematoda.
Q 42.
How is locomotion brought in animals belonging to Mollusca phylum?
Q 43.
What is a notochord? What does it do?
Q 44.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 45.
Identify the Animalia group having following features:
Q 46.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 47.
Give three examples of Protochordata animals.
Q 49.
Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Q 50.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
