Neco Real Biology Obj and Theory Ready

By 10:08 Mon, 07 Jul 2014 Comments


ANSWERS

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ANSWERS OBJ & THEORY

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BIOLOGY TYPE B

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BIOLOGY

TYPE BĂ‚Â

1CAAEACDBED

11AEEECEBEDE

21CAEABBEAAB

31ECCCEEEBBD

41CDDCECCABD

51BBEADCABDD

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1. Protein synthesis

2. Centromere

3. Anaphase

4.Spindle

5. Apple

6. Spleen

7. Spinal cord

8. Ligament

9. Syncarpous

10.phototropism

11.biological

12.prolactin

13.spirogyra

14.toad

15.locus

16. wind intensity

17. iris

18.parthenocarpy

19. lenticel

20.pseudopodia

21. III

22. Erothrocutes

23. pinna

24. Cocoa

25. Female aedes

26. central

27. Stigma

28. I

29. Breathing

30. Asthma

31.Trypanosoma gambiense

32. Phosphorus

33. Desert

34. Emigration

35. Xlem

36. Thyroxin

37. Tundra

38. Cervical rib

39. Evaporation

40. Pond

41. Heredity

42. Taxonomy

43. medicine

44. Inversion

45. Xerophytes

46. discontinuous variation

47. Left- handedness

48. Ant

49.Dominant

50. mutation

51. Englena

52.Coelentrata

53.Virus

54.Annelid

55.Mithochondrion

56.Leached soil

57. Diabetes

58. VItamin C

59.seminiferous tubules

60. Sundew.

Theory

(1ai)

Osmosis is the process by which water molecules are transmitted from region of lower concentration to region of higher concentration through a semi permeable membrane

(ii)

-Concentration

-Presence of semi-permeable membrane

(1bi)

Temperature, humidity, rainfall and wind

(ii)

i. WHO is responsible for provision of medical facilities to warring nations

ii. It is responsible for provision of drugs to nations at subsidized prices

iii. it provides vital information on various disease epidemy

iv. it render financial assistance to war-striken nations.

(1ci)

flooding destroys farmland

flooding leads to leaching of soil

it destroy soil fertility

it destroy soil structure

(ii)

Air pollution brings about difficulty in breathing

It leads to reduction of oxygen content in the atmosphere

(iii)

Guard cells regulate the rate of transpiration

They aid in photosynthesis because they contain chlorophyll.

==================================

(3a)

-an organ is the collection of specialized tissues which are similar in function.

-cell tissue, organ and system

(3bi)

-crop rotation

-shifting cultivation

-cover cropping

-application of fertilizer

-liming

-enzymes are catalysts.

-they are specific in action

-they are organic substances

-they do not partake in chemical reactions

(3ci)

-astigmatism, myopia and hypermetropia

-dermis and epidermis

============================

(4a)

-it is richly supplied with blood

-it is covered by semi-permeable membrane.

-it possess small area to volume rate

(4aii)

-spiroygyra is photosynthetic while rhizopus is heterotrophic

-spirogyra is autotropic while rhizopus is aprophytic

-spirogyra is autotrophic while rhizopus is saprophytic

(4bi)

Tabulate:

Photosynthesis:

-it is anabolic

-it involves plastic only

-it uses up carbon dioxide

-it absorbs energy(solar energy)

Respiration:

-it is catabolic

-it involves both plants and animals

-it releases carbon dioxide

-it releases energy.

(4bii)

hepatitis, kidney stones, cancer of the kidney,

(4ci)ecosystem is a unit of the earth which involves the interaction between plants and animals and their interrelationship with their environment.

(4cii)biological and chemical control.

===========================

(5ai) dentition refers to the number, arrangement and conformation of teeth in an organism

(5aii)

-incisors

-canines

-premolars

-molars

(5bi)

-marginal placentation

-pariental placentation

-axile placentation

-basal placentation

(5bii)

-arch

-loop

-whorl

-compound

(5ci)

competition is defined as the process by which living organisms in a living habitat struggle with one another for such limited essential needs in the environment

(5cii)

-competition

-presence of light

(5ciii)

-phloem

-xylem


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