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.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 2.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 3.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 4.
What are naked-seeded plants are called?
Q 6.
What is the primary characteristic on which the first division of organisms is made?
Q 7.
Why do we classify organisms?
Q 8.
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 9.
Give examples of Porifera or Sponges.
Q 10.
Give examples of Arthropod animals.
Q 11.
How do annelid animals differ from arthropods?
Q 12.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 13.
Give an example of marsupial mammal
Q 14.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 15.
Do Protozoans have eyes?
Q 16.
Identify which of the following are monocots and dicots : garlic, onion, tomatoes, corn, peppers, potatoes, wheat, beans
Q 17.
Which worms cause elephantiasis. Name the group it belongs to?
Q 18.
Give three examples of organisms that are arthopods.
Q 19.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 20.
Ambibian heart is divided into how many chambers?
Q 21.
What changes are evolved in limbs of aves?
Q 22.
Give examples of egg laying mammals
Q 23.
Give three examples of the range of variations that you see in lifeforms around you.
Q 24.
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 25.
What is the primary characteristic on which the first division of organisms is made?
Q 26.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 27.
Name the organisms which are outside the classification.
Q 28.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 29.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 30.
Give examples of Thallophyta plants.
Q 31.
Why are Thallophytes called non-embryonic plants?
Q 32.
Define Cryptograms.
Q 33.
In how many Phyla, the animal kingdom is divided into?
Q 34.
What are four main features of phylum coelenterates?
Q 35.
Name the first animals (phylum) that have a true body cavity.
Q 36.
Leeches and Earthworms belong to which phylum?
Q 37.
Name the largest group (phylum) of animals.
Q 38.
What is the most striking feature of phylum Arthropoda?
Q 39.
How is a body of Arthropods segmented?
Q 40.
Give examples of animals that belong to Phylum Mollusca.
Q 41.
What kind of circulatory system is found in animals from Mollusca phylum?
Q 42.
Give examples of organisms which belong to Phylum Protochordata.
Q 43.
Why are Bats and whales classified as mammals?
Q 44.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 45.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 46.
What is the mode of nutrition in Mushroom?
Q 47.
Name the kingdom which includes the simplest form of eukaryotes.
Q 48.
Name the simplest of plants that do not have a well-differentiated body design.
Q 49.
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 50.
Name the two groups of Plantae that are commonly called phanerogams.
