SPECIES,COMMUNITY AND ECOSYSTEM
| SPECIES1.Every different living thing is called a species2.Examples:a) A sparrow is a species of bird.b)A pigeon is another species of bird.3.Individuals from the same species have the same appearance and characteristics.4.Individuals from the same species are able to reproduce among themselves.
| POPULATION1.A group of the same species living together in the same habitat forms a population. 2.EXAMPLES:a)A group of sparrows living together forms a population of sparrows. b)A group of goats in a farm forms a population of gaoats.
3.A population can change due to Births,deaths and migration.
1.Several populations of living things living together in a habitat forms a population.
2.The individuals in a community depend on one another for survival.
3.A change in one population in a community another populations.
1.An ecosystem is made up of all the living thing and non-living things in a habitat.
2.The individuals members in an ecosystem:
a)interact with one another.
b)Are dependent on one another for survival.
3.The living things form the biological factors in an ecosystem.
4.The physical factors in an ecosystem include:
5.An ecosystem can provide different sorts of habitats for the living things.
interdependence of organisms and balanced ecosystem
1.The living organisms in a ecosystem are interdependent.
2.In this way of organisms control one another and so control the populations in the ecosystem
3.The control of the populations brings about a balanced ecosystem,as one population and must balance another.
A)INTERDEPENDENCE OF PLANTS AND ANIMALS FOR ESSENTIALS GASSES.
1.Green plants depend on carbon dioxide released by animnals during respiration for making food.
2.Animals depend on oxygen released by green plants during photosynthesis for respiration to get energy.
B)DEPENDENCE OF ANIMALS ON PLANTS
1.Animals depend on green plants for food for only green plants can make their own food by photosynthesis.
2.Herbivores feed on the green plants and carnivores feed on the herbivores.
C)DEPENDENCE OF GREEN PLANTS ON THE ENVIRONMENT
1.Green plants require sunlight,carbon dioxide and water for making food during photosynthesis.
2.All these essential requirements are obtained from the environment.
D)DEPENDENCE OF ANIMALS ON PLANTS FOR MATERIALS TO BUILD THEIR HOMES
1.animals,including human beings,depend on plants for materials to build their nests or homes.
2.birds build their nests from plant materials.
3.our houses are partly built of wood.
E)DEPENDENCE OF PLANTS ON ANIMALS FOR POLLINATION
1.pollination is the process of placing pollen grains on the stigmas of flowers.
2.some flowering plants depend on birds and insects such as bees and butterflies to polinate their flowers.
3.flowers need to be pollinated before they can develop into fruit and seeds.
F)DEPENDENCE OF ANIMALS ON ONE ANOTHER FOR PROTECTION
1.many animals such as zebras,and deer live in groups.
2.this enables them to detect approaching predators such as lions and tigers more
interaction among living things
1.predator is an organism that kills and eats other organisms.
2.prey is the organism that is eaten by a predator.
3.a predator usually has special physical characteristics such as sharp claws and fangs,or a sharp beak,which it uses to kill its prey.
4.a prey usually has physical characteristics that allow it to escape from a predator.
1.There are three types of symbiotic relationships,namely commensalism,parasitism and ,mutualism.
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