Question:
What is a notochord? What does it do?
Answer:
The notochord is a long rod-like support structure (chord=string) which runs along the back of the animal separating the nervous tissue from the gut. It provides a place for muscles to attach for ease of movement.
Diversity in Living Organisms
Q 1.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 2.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 3.
Why do we classify organisms?
Q 5.
Give examples of Arthropod animals.
Q 6.
Give three examples of flightless birds.
Q 7.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 8.
Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Q 9.
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 10.
How do annelid animals differ from arthropods?
Q 11.
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 12.
Do Protozoans have eyes?
Q 13.
Give two examples of Bryophyta plants?
Q 14.
Which worms cause elephantiasis. Name the group it belongs to?
Q 15.
Ambibian heart is divided into how many chambers?
Q 16.
On what bases are plants and animals put into different categories?
Q 18.
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 19.
Give examples of Thallophyta plants.
Q 20.
How Phanerogams are divided further chiefly?
Q 21.
What are the general characteristics found in all animals?
Q 22.
Which animal phylum is commonly called as flatworms?
Q 23.
What is the type of circulatory system present in Arthropods?
Q 24.
Name the phylum to which Start fish and Sea urchin belong to?
Q 25.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 26.
Algae belongs to which division of Plantae?
Q 27.
Identify plant group which has parallel venation, scattered vascular bundles, flower petals/parts in multiple of three, fibrous roots.
Q 28.
Identify which of the following are monocots and dicots : garlic, onion, tomatoes, corn, peppers, potatoes, wheat, beans
Q 29.
Which is the largest group of animals?
Q 30.
Give three examples of Protochordata animals.
Q 31.
What are the advantages of classification?
Q 32.
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Q 33.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 34.
On what basis plants are divided into two sub-kingdoms?
Q 35.
What are naked-seeded plants are called?
Q 36.
Give examples of Porifera or Sponges.
Q 37.
Which phylum is commonly called roundworms or pinworms?
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 is a notochord? What does it do?
Q 42.
Why are Bats and whales classified as mammals?
Q 43.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 44.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 45.
What is the mode of nutrition in Mushroom?
Q 46.
Which division of plants are often called amphibians of the plant kingdom?
Q 47.
Give two examples of Pteridophyes
Q 48.
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 49.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 50.
Give three examples of Molluscs
