Question:
Write two important characteristics of sponges ?
Answer:
Important characteristics of sponges are:
- simplest multi-cellular animals.
- most of them are marine except spongilla which is fresh water.
- non-motile and attached to support
- organisms with holes or ‘pores’, all over the body with canal systems.
- canal system of the body helps in circulating water throughout the body to bring in food andoxygen.
- animals are covered with a hard outside layer or skeleton.
- body design involves very minimal differentiation and division into tissues.
Diversity in Living Organisms
Q 1.
Name a reptile which has four chambered heart.
Q 2.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 3.
Why bryophytes are called the amphibians of the plant kingdom?
Q 4.
List important characteristics (at least three) of bryophytes.
Q 5.
How Angiosperms are divided further?
Q 6.
How is locomotion brought in animals belonging to Mollusca phylum?
Q 7.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 8.
Give three examples of Molluscs
Q 9.
Based on evolution, primarily how organisms are categorised?
Q 10.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 11.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 12.
Give examples of Porifera or Sponges.
Q 13.
Give examples of Arthropod animals.
Q 14.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 15.
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 16.
Will advanced organisms be the same as complex organisms? Why?
Q 17.
What is Symbiotic? Give an example of organisms which exhibit this relationship.
Q 18.
Which animal phylum is considered to be first triploblastic animals?
Q 19.
Name the simplest of plants that do not have a well-differentiated body design.
Q 20.
Identify plant group which has parallel venation, scattered vascular bundles, flower petals/parts in multiple of three, fibrous roots.
Q 21.
Pines and Deodar belong to which group of Plants?
Q 22.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 23.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 24.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 25.
Give three examples of Protochordata animals.
Q 26.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 27.
Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Q 28.
Give an example of marsupial mammal
Q 29.
Give an example of mammal that can fly.
Q 30.
Who is known as the father of taxonomy?
Q 31.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 32.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 33.
Why are Thallophytes called non-embryonic plants?
Q 34.
Which division among plants has the simplest organisms?
Q 35.
Which phylum is commonly called roundworms or pinworms?
Q 36.
Name the first animals (phylum) that have a true body cavity.
Q 37.
Differentiate between Annelida and Nematode.
Q 38.
What is the most striking feature of phylum Arthropoda?
Q 39.
What is the type of circulatory system present in Arthropods?
Q 40.
What kind of circulatory system is found in animals from Mollusca phylum?
Q 41.
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 42.
Who introduced the system of scientific nomenclature of organisms?
Q 43.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 44.
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 45.
Which is the largest group of animals?
Q 46.
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 47.
What changes are evolved in limbs of aves?
Q 48.
What is the primary reason for such a huge diversity we find in animals and plants?
Q 49.
What is the primary characteristic on which the first division of organisms is made?
Q 50.
Who wrote the book
The Origin of Species?
