Question:
How Angiosperms are divided further?
Answer:
Angiosperms are divided into two groups on the basis of the number of cotyledons present in the seed.
- Monocotyledonous or monocots: These are the plants with seeds having a single cotyledon, e.g. maize, wheat, rice, etc.
- Dicotyledonous or dicots: These are plants with seeds having two cotyledons, e.g. pea, gram, bean, etc.
Diversity in Living Organisms
Q 1.
Which region of the earth is called the region of megadiversity?
Q 2.
Name the plants that are called "
First vascular land plants".
Q 3.
What is a notochord? What does it do?
Q 4.
Give three examples of organisms that are arthopods.
Q 5.
Give three examples of animals belong to Echinodermata
Q 6.
Name a reptile which has four chambered heart.
Q 7.
Explain the basis for grouping organisms into five kingdoms.
Q 8.
Leeches and Earthworms belong to which phylum?
Q 9.
How do annelid animals differ from arthropods?
Q 10.
Which worms cause elephantiasis. Name the group it belongs to?
Q 11.
Who wrote the book
The Origin of Species?
Q 12.
Will advanced organisms be the same as complex organisms? Why?
Q 13.
How Angiosperms are divided further?
Q 14.
Write the differences between monocots and dicots.
Q 15.
Give examples of Porifera or Sponges.
Q 16.
Identify the phylum having following characteristics:
Q 17.
Which animal phylum is considered to be first triploblastic animals?
Q 18.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 19.
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 20.
What is the primary characteristic on which the first division of organisms is made?
Q 21.
What is the mode of nutrition in Mushroom?
Q 22.
Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.
Q 23.
Which division of plants are often called amphibians of the plant kingdom?
Q 24.
Give three examples of Protochordata animals.
Q 26.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 27.
In how many Phyla, the animal kingdom is divided into?
Q 28.
How do poriferan animals differ from coelenterate animals?
Q 29.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 30.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 31.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 32.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 33.
Algae belongs to which division of Plantae?
Q 34.
Give two examples of Pteridophyes
Q 35.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 36.
Identify the Animalia group having following features:
Q 37.
Ambibian heart is divided into how many chambers?
Q 38.
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 39.
Give an example of marsupial mammal
Q 40.
What do you mean by biodiversity?
Q 41.
Why is there a need for classification and systematic naming of living organisms?
Q 42.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 43.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 44.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 45.
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 46.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 47.
(a) What are saprophytes?
(b) Name the kingdom to which they belong.
(c) What is the cell wall of fungi made up of?
Q 48.
Give examples of Thallophyta plants.
Q 49.
Why bryophytes are called the amphibians of the plant kingdom?
Q 50.
List important characteristics (at least three) of bryophytes.
