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.
Give examples of Arthropod animals.
Q 2.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 3.
Name a reptile which has four chambered heart.
Q 4.
Give two examples of Gymnosperms.
Q 5.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 6.
How is a body of Arthropods segmented?
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.
Give examples of bryophytes.
Q 9.
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 10.
What are the advantages of classification?
Q 11.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 12.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 13.
Why are Thallophytes called non-embryonic plants?
Q 14.
What is the primary characteristic on which the first division of organisms is made?
Q 15.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 16.
On what bases are plants and animals put into different categories?
Q 17.
On what basis plants are divided into two sub-kingdoms?
Q 18.
Name the largest group (phylum) of animals.
Q 19.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 20.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 21.
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 22.
Name the kingdom which includes the simplest form of eukaryotes.
Q 23.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 24.
Give two examples of Bryophyta plants?
Q 25.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 26.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 27.
What is Symbiotic? Give an example of organisms which exhibit this relationship.
Q 28.
How are pteridophytes different from the phanerogams?
Q 29.
How Phanerogams are divided further chiefly?
Q 30.
How do gymnosperms and angiosperms differ from each other?
Q 31.
Write two important characteristics of sponges ?
Q 32.
Which animal phylum is considered to be first triploblastic animals?
Q 33.
Write important features about Phylum Platyhelminthes.
Q 34.
Name a parasitic disease caused by members of Nematoda.
Q 35.
Differentiate between Annelida and Nematode.
Q 36.
Name the phylum to which Start fish and Sea urchin belong to?
Q 37.
Give examples of organisms which belong to Phylum Protochordata.
Q 38.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 39.
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 40.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 41.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 42.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 43.
Name the fish which is entirely made of cartilage.
Q 44.
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 45.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 46.
Give three examples of flightless birds.
Q 47.
Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Q 48.
Give examples of egg laying mammals
Q 49.
What do you mean by biodiversity?
Q 50.
Give three examples of the range of variations that you see in lifeforms around you.
