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.
Name a reptile which has four chambered heart.
Q 2.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 3.
Give three examples of Protochordata animals.
Q 4.
Why bryophytes are called the amphibians of the plant kingdom?
Q 5.
Give examples of Arthropod animals.
Q 6.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 7.
List important characteristics (at least three) of bryophytes.
Q 8.
Which animal phylum is commonly called as flatworms?
Q 9.
Name the first animals (phylum) that have a true body cavity.
Q 10.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 11.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 12.
Name the simplest of plants that do not have a well-differentiated body design.
Q 13.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 14.
Identify plant group which has parallel venation, scattered vascular bundles, flower petals/parts in multiple of three, fibrous roots.
Q 15.
Give examples of egg laying mammals
Q 16.
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 17.
Which region of the earth is called the region of megadiversity?
Q 18.
Based on evolution, primarily how organisms are categorised?
Q 19.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 20.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 21.
How are pteridophytes different from the phanerogams?
Q 22.
How do gymnosperms and angiosperms differ from each other?
Q 23.
How Angiosperms are divided further?
Q 24.
Write two important characteristics of sponges ?
Q 25.
Do sponges have a nervous system?
Q 26.
Name a parasitic disease caused by members of Nematoda.
Q 27.
Name the largest group (phylum) of animals.
Q 28.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 29.
What is a notochord? What does it do?
Q 30.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 31.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 32.
Give two examples of Pteridophyes
Q 33.
Identify which of the following are monocots and dicots : garlic, onion, tomatoes, corn, peppers, potatoes, wheat, beans
Q 34.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 35.
What type of circulatory system do Molluscs have?
Q 36.
Give three examples of animals belong to Echinodermata
Q 37.
What changes are evolved in limbs of aves?
Q 38.
Give an example of marsupial mammal
Q 39.
What do you mean by biodiversity?
Q 41.
Who is known as the father of taxonomy?
Q 42.
Give three examples of the range of variations that you see in lifeforms around you.
Q 43.
Name five countries that lie in the region of megadiversity.
Q 45.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 46.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 47.
According to the five-kingdom system, which kingdom contains organisms whose structure is composed of prokaryotic cells?
Q 48.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 49.
How do poriferan animals differ from coelenterate animals?
Q 50.
Give examples of animals belong to Nematoda.
