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-Single/independent free living organism eg amoeba
-As a colony eg volvox
-As a filament
eg spirogyra


-Plant cell are rectangular in shape while Animal cell are spherical in shape
-Plant cell contain chloroplast while animal cell do not contain chloroplast
-Plant cell contain cell wall while animal cell do not contain cell wall
-Plant cell nucleus is at the side while the animal cell is at the middle

-They both have nucleus
-They both have mitochondrion
-They both have endoplasmic reticulum

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Mouth,Oesophagus,Stomach,Duodenum,Small intestine,Caecum,Appendix,Large intestine,Rectum,Anus

Alimentary canal of birds|Alimentary canal of man
-There is presence of crop|Crop absent
-There is presence of proventiculus|Proventiculus absent
-There is presence of gizzard|Gizzard is absent

-Both have caecum
-Both have Oesophagus
-Both have duodenum

Herbivore posses heterodant type of dentition in which they posses teeth of different shapes and sizes.Herbivores feed mainly on vegetable hence its teeth is 28 in numbers.Its incisors are flat with sharp cutting edges for cutting vegetables or grasses .canine is absent.the space creates due to absense of the canine is called diastema.Diastema allows manipulation of grasses in the mouth.It has a very large molar and premolar closely packed and have very large ridged surface area for cutting and grinding
-They help in regulation of blood sugar by producing insuling and glucagon
-They help in digestion

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A habitat comprises of an organism immediate environment or where it lives or resides

-They help in the decay of the organisms
-They also help to return certain substances like gases eg Nitrogen to the atmosphere thereby regulating certain biological processes such as the Nitrogen cycle,carbon cycle
-Some of the substances released are important in processes such as respiration,photosynthesis

Energy flows basically from the producers in a fresh water habitat to the consumers.The producers usually are phytoplanktons which are taken up by the primary consumers usually small fishes.The primary consumer are taken up by the secondary consumers which are larger fishes such as sharks.This sharks may inturn be taken up by man which is the tertiary consumer
Phytoplanktons->Small fishes->Sharks->Man

-They causes diseases such as rice smut,black pod of cocoa which may lead to waste
-They also reduce the economic value of plants leading to financial loss

-They help in fermentation of certain substances like yughourt eg lactobacillus species
-They help in decomposition and decay of substances eg sprophytic micro organism
-They causes diseases eg smallpox and chicken pox hence have been useful tools in the development of antibiotics and vaccines
-They are useful in certain biological processes eg photosynthesis
-They are used in sewage treatment
-Sources of enzymes

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-Tactic movement movement is found in some plant and animals while nastic movement is found in plants alone
-Tactic movement rsponse to directional stimuli while nastic movement respond to non directional stimuli


-Mimosa plant

-Regular cleaning
-Exposure to fresh air
-Eating balanced diet
-Regular exercise


-High temperature affect evaporation and reduces performance
-High temperature may lead to seed dormancy
-It leads to loss of soil nutrients through evaporation
-It affects the ripening and maturity of plant
-it is necessary for germination of seeds

Courtship behaviour refers to the instructive behaviour on response to certain external stimuli in animals.It is the pattern of behaviour that preceeds mating and reproduction in animals.It is performed by male and female organism


Holozoic nutrition:
-Entamoeba histolytica

Crime detection using finger print method: this applies to forensic.In this method,individuals having different finger print pattern can be identified using database of stored information of such individuals.These method correctly identifies such individuals aptly and is useful in crime detection

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