U DNT NEED TO BLAME US COS OF THE LITTLE DELAY. WE ARE REALLY TRYING OUR BEST. SOLVING AND TYPING AT THE SAME TIME IS NOT EASY. AFTER ALL MUCH STRESS, OTHER SITES WILL STILL COPY OUR ANSWERS WHICH THEY BOAST THEY SOLVE THEMSELVES. ++++++++++++++++++++++++++++ Verified BIOLOGY OBJ: 1-10: BADDAABABC 11-20: DDCCBAADCB 21-30: BADAACCABB 31-40: CDBDBCBDDC 41-50: ADACAACABB (2a) this is because glucose helps to renew the energy expended by athletes and very good source of energy. (2b) (i)a brick- red precipitate is observed. (ii) this is because urine contains simple sugar. (iii) diabetes (2c) -it helps in growth -it is one of the major source of energy -it helps to build skeleton -it helps to repair worn-out tissue -it aids reproduciton (2di) Vitamin A(retinol) (2dii)egss,fish,milk (2e) -it helps in manufacturing body temperature -it provides more energy -it supplies essential fatty acid to human body (2f) -insulin -glycogen ========================================= (3a) The three reasons are. 1. Birds have Structural adaptation 2. Birds have powerful eagles 3. They have sharp,strong and curved claws for adaptation (3b) 1. it provides food for human consumption 2. it generates revenue for government 3. it can serve as tourist centres for pleasure and relaxation 4. it provides research work for scientists 5. it can generate employment for some people (3c) 1. it helps to control diseases 2. it helps to control erosion 3. it helps to control growth of weeds (3d) 1. it is never used-up 2. it does not cause environmental damages 3. it is clean 4. it is readily available 5. it is affordable ========================================== (6a) Hydra symmetry: radial symmetry Bodylayer: Two layers Body carily: jelly-like Flatworm symmetry: bilaterally symmetry Body layer: Three layers Body Cavity: No body cavity (6b) a apical(terminal) bud occurs on the main axis of a stem,it helps in the elongation of the main axis. a lateral bud occurs on the sides of that main axis,it helps in the branching of the plant,generates new stem (secondary) to the main axis,those newly generated branches end also with apical buds that help in their elongation and may have lateral buds to generate new branches and so on . A whole plant is simply a network of branches with lateral buds on the sides and apical buds on the main axis. (6c) (i.) Anaemia is caused by deficiency of copper and iron in the body. Symptons: 1. deficiency in iron 2. improper respiration (ii.) Goitre is caused by lack of iodine in the body Symptoms: 1. swelling jaw 2. Lack of thyroxine (6di) A biomes comprises of tropical rainforest,saranna,desert,shrub and swamp of the world (6dii) 1. tropical rainforest 2. Afro-alphine 3. Swamp 4. Shrub 5. Desert (6e) 1. evaporation from oceans and land 2. transpiration from plants 3. Breathing or respiration by plant 4. Rainfall or precipitation 5. Infitration and peracolation (6g)Genetic variation is useful to plants for the following reason -in knowing the gene variation -for cross breeding (6g)Genetic variation is useful to plants for the following reason -in knowing the gene variation -for cross breeding (6h) convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. (6hii) -evidence form comparative anatomy -vestigal organs
Posted on: Fri, 12 Sep 2014 10:46:58 +0000
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