Give the main features of algae.
(i) They are autotrophic as they possess chlorophyll. (ii) They are mainly aquatic but some also grow in moist places. (iii) The body is not divided into root, stem and…
Write similarities between plants and animals.
(i) Plants and animals are both made up of cells. (ii) Both contain protoplasm and the genetic material, DNA. (iii) Both plants and animals show growth. (iv) Both show response…
Write the main characteristics of kingdom Plantae.
(i)They are all complex multicellular plants which prepare their own food by photosynthesis. (ii) They possess cell wall made of cellulose. (iii) Plants are immobile and do not show locomotion.…
Give the main features of kingdom Fungi.
(i)They are non-green because of the absence of chlorophyll. (ii) They are heterotrophic and obtain food from dead and decaying organic matter by absorption (iii) The body organisation is mycelial…
Enlist the main features of organisms placed under Protista.
(i) Most of the members are unicellular and primarily aquatic. (ii) They have nucleus and typical eukaryotic cell organelles. (iii) Most of the organisms bear flagella or cilia for movements.…
Give the general characters of kingdom Animalia.
(i) In kingdom Animalia, all the members are multicellular eukaryotes with tissue differentiation. (ii) They are heterotrophic with ingestive mode of intake of food. (iii) They possess a well-developed nervous…
Differentiate between species and taxon.
Species and taxon differ in the following ways: (i) Species represents the basic taxonomic category while the taxon represents any level of taxonomic category. (ii) Species is always monophyletic while…
State reasons for each of the following Echidna and platypus lay eggs but are considered as mammals. (ii) Forelimbs of birds are modified. (iii) Crocodiles have four-chambered heart but are still reptiles.
(i) They have mammary glands for the production of milk to nourish their young ones. (ii) To reduce body weight for flight, forelimbs of birds are modified. (iii) Crocodiles are…
What is a species? Give its main features.
Species is defined as a dynamic group of organisms, which resemble each other in all essential aspects, i.e., structure and function, and interbreed to produce fertile young ones of their…
Endoskeleton of fishes are made up of cartilage and bone. Classify the following fishes as cartilagenous or bony: Torpedo, Sting ray, Dog fish, Rohu, Angler fish, Exocoetus
Torpedo - Cartilagenous, Sting ray - Cartilagenous Dog fish - Cartilagenous Rohu - Bony Angler fish…