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.
Name a reptile which has four chambered heart.
Q 3.
Give two examples of Gymnosperms.
Q 4.
What are the advantages of classification?
Q 5.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 6.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 7.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 8.
How is a body of Arthropods segmented?
Q 9.
Give three examples of the range of variations that you see in lifeforms around you.
Q 11.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 12.
Which animal phylum is considered to be first triploblastic animals?
Q 13.
What is the most striking feature of phylum Arthropoda?
Q 14.
What is the primary characteristic on which the first division of organisms is made?
Q 15.
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 16.
Give three examples of Molluscs
Q 18.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 19.
Why are Thallophytes called non-embryonic plants?
Q 20.
Give examples of bryophytes.
Q 21.
Give examples of Porifera or Sponges.
Q 22.
How is locomotion brought in animals belonging to Mollusca phylum?
Q 23.
Give two examples of Pteridophyes
Q 24.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 25.
Give an example of marsupial mammal
Q 26.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 27.
In which kingdom you will place an organism which is multicellular, eukaryotic, non-green heterotroph or saprophytic, lacks chlorophyll and has an absorptive mode of nutrition?
Q 29.
On what basis plants are divided into two sub-kingdoms?
Q 30.
What are the general characteristics found in all animals?
Q 31.
In how many Phyla, the animal kingdom is divided into?
Q 32.
What kind of circulatory system is found in animals from Mollusca phylum?
Q 33.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 34.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 35.
Who introduced the system of scientific nomenclature of organisms?
Q 36.
Name the kingdom which includes the simplest form of eukaryotes.
Q 37.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 38.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 39.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 40.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 41.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 42.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 43.
Which worms cause elephantiasis. Name the group it belongs to?
Q 44.
Give three examples of animals belong to Echinodermata
Q 45.
What changes are evolved in limbs of aves?
Q 46.
Give an example of mammal that can fly.
Q 47.
What do you mean by biodiversity?
Q 49.
Who wrote the book
The Origin of Species?
Q 50.
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?
