Skip to content

Search for:

Menu

Close

🏡 Home
🧸 Friends
📞 Support
Log Out

🏡 Home
🧸 Friends
📞 Support
Log Out

Search for:

Civil and Mechanical

w Biology 19

Written by Admin December 9, 2025December 9, 2025

Time limit: 0

Quiz Summary

0 of 50 Questions completed

Questions:

Information

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading...

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 50 Questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 point(s), (0)

Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)

Categories

Not categorized 0%

Review
Answered
Correct
Incorrect

Question 1 of 50

1. Question

Anaerobic respiration in the organism illustrated in the diagram above produces carbon dioxide and________

ethanol
Correct Incorrect Correct answer

water
Correct Incorrect Correct answer

oxygen
Correct Incorrect Correct answer

glucose
Correct Incorrect Correct answer

Correct

Incorrect
Question 2 of 50

2. Question

Tooth decay is usually caused by___________

undigested and absorbed food
Correct Incorrect Correct answer

eating a limited amount of sweetened food.
Correct Incorrect Correct answer

the bacteria ín the mouth that metabolize sugar to acids
Correct Incorrect Correct answer

eating a lot of proteinous foods
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 50

3. Question

An example of organ level of organization is _______

bird
Correct Incorrect Correct answer

kidney
Correct Incorrect Correct answer

spermatozoon
Correct Incorrect Correct answer

xylem
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 50

4. Question

The complex relationship between the members of a community and their physical environment is known as________

commensalism
Correct Incorrect Correct answer

symbiosis
Correct Incorrect Correct answer

saprophytism
Correct Incorrect Correct answer

ecology
Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 50

5. Question

The function of the part labelled II is that it controls_______

posture and balance of the body
Correct Incorrect Correct answer

all voluntary actions
Correct Incorrect Correct answer

temperature and appetite
Correct Incorrect Correct answer

many involuntary actions
Correct Incorrect Correct answer

Correct

Incorrect
Question 6 of 50

6. Question

Tall trees with unbranched trunks which grow above the upper storey of the forest are commonly referred to as _____

Emergents
Correct Incorrect Correct answer

Herbs
Correct Incorrect Correct answer

Lianes
Correct Incorrect Correct answer

Shrubs
Correct Incorrect Correct answer

Correct

Incorrect
Question 7 of 50

7. Question

The rate of diffusion of molecules between two media will be higher if_________?

the difference in concentration of the two media is low
Correct Incorrect Correct answer

the difference in concentration of the two media is negligible
Correct Incorrect Correct answer

the difference in concentration of the two media is high
Correct Incorrect Correct answer

there is no difference in the concentration of the two media
Correct Incorrect Correct answer

Correct

Incorrect
Question 8 of 50

8. Question

The conversion of ammonium salts into nitrates is called_______

putrefaction
Correct Incorrect Correct answer

denitrification
Correct Incorrect Correct answer

fixation
Correct Incorrect Correct answer

nitrification
Correct Incorrect Correct answer

Correct

Incorrect
Question 9 of 50

9. Question

The major mineral present in the shell of Molluscs is________

Copper
Correct Incorrect Correct answer

Sodium
Correct Incorrect Correct answer

Iron
Correct Incorrect Correct answer

Calcium
Correct Incorrect Correct answer

Correct

Incorrect
Question 10 of 50

10. Question

The cross between RrTt and rrtt where R is a gene for red colour and T for tallness will result in______

all the offspring being tall with red fruits
Correct Incorrect Correct answer

25 % tall with red fruits
Correct Incorrect Correct answer

50 % tall with red fruits
Correct Incorrect Correct answer

75 % tall with red fruits
Correct Incorrect Correct answer

Correct

Incorrect
Question 11 of 50

11. Question

The salinity of a brackish habitat________

increases immediately after rainfall
Correct Incorrect Correct answer

increases at the end of the rain
Correct Incorrect Correct answer

decreases with an increase in the number of organisms
Correct Incorrect Correct answer

increases during the dry season
Correct Incorrect Correct answer

Correct

Incorrect
Question 12 of 50

12. Question

The digestion of proteins starts in the______

small intestine
Correct Incorrect Correct answer

stomach
Correct Incorrect Correct answer

large intestine
Correct Incorrect Correct answer

mouth
Correct Incorrect Correct answer

Correct

Incorrect
Question 13 of 50

13. Question

The process is called_______

replication
Correct Incorrect Correct answer

cell maturation
Correct Incorrect Correct answer

crossing over
Correct Incorrect Correct answer

mutation
Correct Incorrect Correct answer

Correct

Incorrect
Question 14 of 50

14. Question

The part labelled I is the________

centromere
Correct Incorrect Correct answer

spindle fibre
Correct Incorrect Correct answer

centriole
Correct Incorrect Correct answer

chiasmata
Correct Incorrect Correct answer

Correct

Incorrect
Question 15 of 50

15. Question

Deficiency in insulin could lead to________

cirrhosis
Correct Incorrect Correct answer

hepatitis
Correct Incorrect Correct answer

diabetes
Correct Incorrect Correct answer

reas either does not produce enough insulin or the body cannot effectively use the insulin that is produced. When there is not enough insulin in the body, glucose builds up in the bloodstream instead of being absorbed by cells to provide energy. This can lead to high blood sugar levels, which can cause a range of health problems over time, including damage to the kidneys, nerves, eyes, and cardiovascular system. Therefore, insulin plays a crucial role in regulating blood sugar levels, and a deficiency in insulin can lead to diabetes.
Correct Incorrect Correct answer

Correct

Incorrect
Question 16 of 50

16. Question

In a complete dominance monohybrid cross between a pure breeding yellow-flowered plant Y and a pure breeding white-flowered plant y, the result of the first filial generation is _________

50 % yellow flowers
Correct Incorrect Correct answer

75% yellow flowers
Correct Incorrect Correct answer

all yellow flowers
Correct Incorrect Correct answer

all white flowers
Correct Incorrect Correct answer

Correct

Incorrect
Question 17 of 50

17. Question

Muscle fatigue in the body of an athlete is due to__________

low pH
Correct Incorrect Correct answer

high oxygen content
Correct Incorrect Correct answer

accumulation of lactic acid
Correct Incorrect Correct answer

accumulation of carbonic acid
Correct Incorrect Correct answer

Correct

Incorrect
Question 18 of 50

18. Question

Organisms in an ecosystem are usually grouped according to their trophic level into__________

carnivores and omnívores
Correct Incorrect Correct answer

consumers and parasites
Correct Incorrect Correct answer

producers, and saprophytes
Correct Incorrect Correct answer

Producers and consumers
Correct Incorrect Correct answer

Correct

Incorrect
Question 19 of 50

19. Question

Which of the following nucleotides is not found in the DNA molecules?

Adenine
Correct Incorrect Correct answer

Cytosine
Correct Incorrect Correct answer

Guanine
Correct Incorrect Correct answer

Uracil
Correct Incorrect Correct answer

Correct

Incorrect
Question 20 of 50

20. Question

The main function of the amniotic fluid is for______________

respiration in the foetus
Correct Incorrect Correct answer

protection of the foetus from shock
Correct Incorrect Correct answer

Lubricating the birth canal foetus
Correct Incorrect Correct answer

nourishing the foetus
Correct Incorrect Correct answer

Correct

Incorrect
Question 21 of 50

21. Question

In the pyramid of energy illustrated above, the organism with the least amount of transferred energy is___________

Spirogyra
Correct Incorrect Correct answer

Tadpole
Correct Incorrect Correct answer

Fish
Correct Incorrect Correct answer

Bird
Correct Incorrect Correct answer

Correct

Incorrect
Question 22 of 50

22. Question

Light is excluded from a water culture experiment in order to_______

prevent overheating of the roots
Correct Incorrect Correct answer

enable the roots to grow straight down
Correct Incorrect Correct answer

prevent ionization of water molecules
Correct Incorrect Correct answer

prevent the growth of algae
Correct Incorrect Correct answer

Correct

Incorrect
Question 23 of 50

23. Question

The classes of plants the root systems in diagrams I and II above represent respectively are______________

Dicotyledoneae and Monocotyledoneae
Correct Incorrect Correct answer

Monocotyledoneae and Dicotyledoneae
Correct Incorrect Correct answer

Dicotyledoneae and Dicotyledoncae
Correct Incorrect Correct answer

Monocotyledoneae and Monocotyledoneae
Correct Incorrect Correct answer

Correct

Incorrect
Question 24 of 50

24. Question

The biological importance of the dance by the worker honeybee is that it___________

acts as a signal for mating
Correct Incorrect Correct answer

serves as a warning signal
Correct Incorrect Correct answer

signals the availability of food
Correct Incorrect Correct answer

serves as a means of identifying members of the caste
Correct Incorrect Correct answer

Correct

Incorrect
Question 25 of 50

25. Question

Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?

Application of N-P-K fertilizer
Correct Incorrect Correct answer

Shifting cultivation
Correct Incorrect Correct answer

Mixed farming
Correct Incorrect Correct answer

Crop rotation
Correct Incorrect Correct answer

Correct

Incorrect
Question 26 of 50

26. Question

The specific role of a species within íts environment is known as its_________

habitat
Correct Incorrect Correct answer

niche
Correct Incorrect Correct answer

trophic level
Correct Incorrect Correct answer

biotic community
Correct Incorrect Correct answer

Correct

Incorrect
Question 27 of 50

27. Question

Which of the following structures will NOT be found in the nucleus of a cell?

DNA
Correct Incorrect Correct answer

Nucleolus
Correct Incorrect Correct answer

Lysosome
Correct Incorrect Correct answer

Centriole
Correct Incorrect Correct answer

Correct

Incorrect
Question 28 of 50

28. Question

To focus on a distant object, the ciliary muscle of the eye______

contracts and the eye lens gets thicker
Correct Incorrect Correct answer

relaxes and the eye lens gets thinner
Correct Incorrect Correct answer

contracts and the eye lens gets thinner
Correct Incorrect Correct answer

relaxes and the eye lens gets thicker
Correct Incorrect Correct answer

Correct

Incorrect
Question 29 of 50

29. Question

The process of maintaining a steady internal environment is known as__________

osmoregulation
Correct Incorrect Correct answer

equilibration
Correct Incorrect Correct answer

homeostasis
Correct Incorrect Correct answer

plasmolysis
Correct Incorrect Correct answer

Correct

Incorrect
Question 30 of 50

30. Question

If 90 ants are found in a field with a total area of 100 m. what is the population density of the ants?

0.09
Correct Incorrect Correct answer

0.9
Correct Incorrect Correct answer

9
Correct Incorrect Correct answer

90
Correct Incorrect Correct answer

Correct

Incorrect
Question 31 of 50

31. Question

The diagram above is an illustration of the longitudinal section of a flower. Study it and answer this question Which part of the flower is responsible for the protection of young flower buds?

I
Correct Incorrect Correct answer

II
Correct Incorrect Correct answer

III
Correct Incorrect Correct answer

IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 32 of 50

32. Question

The essential parts of the flower are labelled_______

I, II and III
Correct Incorrect Correct answer

II, III and IV
Correct Incorrect Correct answer

III, V and VI
Correct Incorrect Correct answer

IV, V and VI
Correct Incorrect Correct answer

Correct

Incorrect
Question 33 of 50

33. Question

Maize grains are best stored against insect attacks by__________________

keeping in a silo
Correct Incorrect Correct answer

storing in the room
Correct Incorrect Correct answer

leaving them on their cobs
Correct Incorrect Correct answer

covering with leaves
Correct Incorrect Correct answer

Correct

Incorrect
Question 34 of 50

34. Question

Which of the following statements is not true about hormones?

Their responses are voluntary
Correct Incorrect Correct answer

They may affect more than one target organ
Correct Incorrect Correct answer

They are chemical messengers in animals
Correct Incorrect Correct answer

They are transported by the blood to the target organs
Correct Incorrect Correct answer

Correct

Incorrect
Question 35 of 50

35. Question

The heart can beat continuously without being fatigued because it is composed of________

skeletal muscles
Correct Incorrect Correct answer

smooth muscles
Correct Incorrect Correct answer

cardiac muscles
Correct Incorrect Correct answer

renal muscles
Correct Incorrect Correct answer

Correct

Incorrect
Question 36 of 50

36. Question

The diagram above is an illustration of a human brain. Study it and answer this question The part labelled I is the________

olfactory lobe
Correct Incorrect Correct answer

cerebellum
Correct Incorrect Correct answer

cerebrum
Correct Incorrect Correct answer

medülla oblongata
Correct Incorrect Correct answer

Correct

Incorrect
Question 37 of 50

37. Question

A structural similarity between Parameciumn and Amoeba is the presence of______

one food vacuole
Correct Incorrect Correct answer

two contractile vacuoles
Correct Incorrect Correct answer

two nuclei
Correct Incorrect Correct answer

one gullet
Correct Incorrect Correct answer

Correct

Incorrect
Question 38 of 50

38. Question

A man whose blood group is heterozygous B is married to a woman whose blood up is also heterozygous B Which of the following statements is correct about the blood group of their four offspring?

Three of them belong to blood group B
Correct Incorrect Correct answer

Three of them belong to blood group O
Correct Incorrect Correct answer

None of them belongs to blood group O
Correct Incorrect Correct answer

Two of them belong to blood group B
Correct Incorrect Correct answer

Correct

Incorrect
Question 39 of 50

39. Question

The diagram above is an illustration of a stage in a biological process. Study it and answer this question What stage of cell division is illustrated in the diagram?

Prophase
Correct Incorrect Correct answer

Metaphase
Correct Incorrect Correct answer

Anaphase
Correct Incorrect Correct answer

Telophase
Correct Incorrect Correct answer

Correct

Incorrect
Question 40 of 50

40. Question

Which of the following roles is not performed by a government agency responsible for forest maintenance?

Regulating the harvest of timber and poaching
Correct Incorrect Correct answer

Creating, protecting and managing the forest reserves
Correct Incorrect Correct answer

Tracking the movement of timber, wood, and wildlife
Correct Incorrect Correct answer

Regulating mining activities in the forest
Correct Incorrect Correct answer

Correct

Incorrect
Question 41 of 50

41. Question

Which of the following resources is renewable?

Petroleum
Correct Incorrect Correct answer

Coal
Correct Incorrect Correct answer

Iron
Correct Incorrect Correct answer

Trees
Correct Incorrect Correct answer

Correct

Incorrect
Question 42 of 50

42. Question

Which of the following forms of energy is utilized during photosynthesis?

Potential
Correct Incorrect Correct answer

Kinetic
Correct Incorrect Correct answer

Solar
Correct Incorrect Correct answer

Chemical
Correct Incorrect Correct answer

Correct

Incorrect
Question 43 of 50

43. Question

The yellow and black stripes on the body of wasps is an example of________

mimicry
Correct Incorrect Correct answer

courtship behaviour
Correct Incorrect Correct answer

camouflage
Correct Incorrect Correct answer

warning colouration
Correct Incorrect Correct answer

Correct

Incorrect
Question 44 of 50

44. Question

Underground storage stems which grow horizontally in the soil are_______

bulbs
Correct Incorrect Correct answer

runners
Correct Incorrect Correct answer

rhizomes
Correct Incorrect Correct answer

corms
Correct Incorrect Correct answer

Correct

Incorrect
Question 45 of 50

45. Question

Cholera is mostly spread by_______

air
Correct Incorrect Correct answer

soil
Correct Incorrect Correct answer

water
Correct Incorrect Correct answer

noise
Correct Incorrect Correct answer

Correct

Incorrect
Question 46 of 50

46. Question

Individuals with blood group AB can donate blood to individuals with blood group(s)___________?

A and B
Correct Incorrect Correct answer

A and O
Correct Incorrect Correct answer

AB only
Correct Incorrect Correct answer

O only
Correct Incorrect Correct answer

Correct

Incorrect
Question 47 of 50

47. Question

The products of tissue respiration are_________

glucose, oxygen, and water
Correct Incorrect Correct answer

oxygen, water, and energy
Correct Incorrect Correct answer

glucose, carbon dioxide, and energy
Correct Incorrect Correct answer

water, carbon dioxide, and energy
Correct Incorrect Correct answer

Correct

Incorrect
Question 48 of 50

48. Question

Which of the following factors is not a source of variation in living organisms?

Environment
Correct Incorrect Correct answer

Inheritance
Correct Incorrect Correct answer

Mitosis
Correct Incorrect Correct answer

Meiosis
Correct Incorrect Correct answer

Correct

Incorrect
Question 49 of 50

49. Question

Excretory products in plants responsible for the discoloration of flowers are called__________

alkaloids
Correct Incorrect Correct answer

tannins
Correct Incorrect Correct answer

anthocyanins
Correct Incorrect Correct answer

resins
Correct Incorrect Correct answer

Correct

Incorrect
Question 50 of 50

50. Question

The diagram above is an illustration of a process occurring in a living animal cell. Study it and answer this question The process occurs in the _______

Nucleus
Correct Incorrect Correct answer

Mitochondrion
Correct Incorrect Correct answer

Golgi body
Correct Incorrect Correct answer

Cytoplasm
Correct Incorrect Correct answer

Correct

Incorrect

Posted in Civil and Mechanical

Post navigation

Copyright © 2026 | Powered by BuddyX WordPress Theme