Question:
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?
Answer:
Option (b) the kind of cells they are made of, is the more basic characteristic for classifying organisms. It is for the following reasons:
- Classifying organisms based on habitat is misleading. Apart from common habitat, there are no other common features among them. e.g. Lion and Rabbit both live on land but they differ from each other a lot. Further, sub-classification is not possible.
- Cells are the functional and structural unit of life. Primarily we can differentiate organisms are unicellular and multicellular. Further sub-classification or logical sequence is possible based on cell types, its complexity etc.
Diversity in Living Organisms
Q 1.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 2.
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 3.
Give examples of egg laying mammals
Q 4.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 5.
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 6.
Why do we classify organisms?
Q 7.
Who wrote the book
The Origin of Species?
Q 8.
Give examples of bryophytes.
Q 9.
Name the phylum to which Start fish and Sea urchin belong to?
Q 10.
Give three examples of animals belong to Echinodermata
Q 11.
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 12.
Give examples of organisms which belong to Phylum Protochordata.
Q 13.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 14.
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 15.
On what basis plants are divided into two sub-kingdoms?
Q 16.
How Phanerogams are divided further chiefly?
Q 17.
What are naked-seeded plants are called?
Q 19.
How do poriferan animals differ from coelenterate animals?
Q 20.
Give examples of animals belong to Nematoda.
Q 21.
Name the largest group (phylum) of animals.
Q 22.
How is a body of Arthropods segmented?
Q 23.
What is a notochord? What does it do?
Q 24.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 25.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 26.
Give three examples of Molluscs
Q 27.
Spiny skin, marine, triploblastic coelomates having water-driven tube system for locomotion. What type of group are we talking of?
Q 28.
Give three examples of Amphibians.
Q 29.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 30.
What do you mean by biodiversity?
Q 31.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 32.
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 33.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 34.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 35.
How do the saprophytes get their food? Give two examples of a saprophyte.
Q 36.
Write the differences between monocots and dicots.
Q 37.
Leeches and Earthworms belong to which phylum?
Q 38.
What is the type of circulatory system present in Arthropods?
Q 39.
Why are Bats and whales classified as mammals?
Q 40.
In which Kingdom, an organism does not have a well defined nucleus and organelles?
Q 41.
Do Protozoans have eyes?
Q 42.
Which division of plants are often called amphibians of the plant kingdom?
Q 43.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 44.
Give two examples of Pteridophyes
Q 45.
Which is the largest group of animals?
Q 46.
What are the advantages of classification?
Q 47.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 48.
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 49.
Why are Thallophytes called non-embryonic plants?
Q 50.
Name the plants that are called "
First vascular land plants".
