a.What is classification of living things? b. State four ways each by which the following...
a.What is classification of living things?
b. State four ways each by which the following groups of organisms are of economic importance in their habitats:
i) fungi ii) plants.
c. complete the table below by stating five major phyla of the kingdom Animalia and give one example of each
| Phyla of kingdom Animalia | Example |
Explanation
a.Classification of living things is the grouping/arrangement of organisms; with similar characteristics based on structural/genetic/cellular/evolutionary trends; for easy identification.
bi. -cause various plant/animal diseases;
-act as decomposers;
-recycle nutrients;
-bring about fermentation in breweries;
-used in baking industries;
-serve as source of food;
-are used in pharmaceutical industries/production of antibiotics/vitamins;
-destroy various substances/cloth/paper/wood/food
bii. -are involved in nutrient recycling;
-purify the environment/reduce greenhouse effects;
-provide shade/shelter;
-provide food;
-provide oxygen;
-prevent erosion;
-are sources of timber for building/construction;
-provide materials for pharmaceuticals/production of drugs.
c.
| phyla of Kingdom Animalia | Examples |
| Porifera | Sponges,venus flower basket |
| Cnidaria/coelenterata | Hydra,obelia,sea anemone,jelly fish,aurelia,coral |
| Platyhelminthes | Liverfluke,tapeworm,schistosoma,planaria |
| Nematoda | Whipworm,ascaris,guinea worm,hookworm,wucheria |
| Annelida | Marine worm, leech,earthworm,lugworm,seaworm,bobbit worm, fireworm. |
| Mollusca | Snail, bivalve,slug,octopus,clam,oyster,squid |
| Arthropoda | Scorpion,spider,butterfly,housefly,cockroach,crab,crayfish,grasshopper,centipede,millipede,ant. |
| Echinodermata | Starfish,sea lily, sea urchin,sea cucumber,brittle star,sea star. |
| Chordata | Fish,frog,bird,man,cat,tiger,lion,dog,salamander,alligator,snake,giraffe |