Question:
How do gymnosperms and angiosperms differ from each other?
Answer:
| Num. | Gymnosperms | Angiosperms |
|---|
| 1. | Naked seed i.e. seeds not enclosed within a fruit. | Seeds are enclosed with fruit walls (cotyledons). |
| 2. | Flowers are represented as unisexual cones which produce spores. | Microspores are anthers while megaspores are ovules. |
| 3. | Ovules not located in ovary | Ovules present inside an ovary. |
| 4. | Examples: Pines, Cycas, Deodar etc. | Examples: Sunflower, Maize, Wheat, Pea, bean etc. |
Diversity in Living Organisms
Q 1.
Name a reptile which has four chambered heart.
Q 2.
Give examples of bryophytes.
Q 3.
Give examples of Arthropod animals.
Q 4.
What are naked-seeded plants are called?
Q 5.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 6.
What do you mean by biodiversity?
Q 7.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 8.
Write important features about Phylum Platyhelminthes.
Q 9.
How do poriferan animals differ from coelenterate animals?
Q 10.
Which division of plants are often called amphibians of the plant kingdom?
Q 11.
Who is known as the father of taxonomy?
Q 12.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 13.
In how many Phyla, the animal kingdom is divided into?
Q 14.
Differentiate between Annelida and Nematode.
Q 15.
What is the most striking feature of phylum Arthropoda?
Q 16.
Why are Bats and whales classified as mammals?
Q 17.
Do Protozoans have eyes?
Q 18.
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 19.
Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Q 20.
Give three examples of the range of variations that you see in lifeforms around you.
Q 21.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 23.
How do gymnosperms and angiosperms differ from each other?
Q 24.
What are the general characteristics found in all animals?
Q 25.
Which animal phylum is considered to be first triploblastic animals?
Q 26.
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 27.
Name the simplest of plants that do not have a well-differentiated body design.
Q 28.
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 29.
Give an example of marsupial mammal
Q 30.
Give an example of mammal that can fly.
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 the saprophytes get their food? Give two examples of a saprophyte.
Q 33.
What are the uses of bryophytes?
Q 34.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 35.
On what basis plants are divided into two sub-kingdoms?
Q 36.
How are pteridophytes different from the phanerogams?
Q 37.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 38.
Do sponges have a nervous system?
Q 39.
What are four main features of phylum coelenterates?
Q 40.
Which phylum is commonly called roundworms or pinworms?
Q 41.
Name the substance which makes the cell wall of fungi.
Q 42.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 43.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 44.
Give two examples of Pteridophyes
Q 45.
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 46.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 47.
Identify the Animalia group having following features:
Q 48.
Give three examples of Molluscs
Q 49.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 50.
Name the fish which is entirely made of cartilage.
