Biology Test For W.A.S.S.C.E & N.E.C.O Candidates (40 Questions) Trials

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1. Which of the following is an example of a monohybrid cross?

A) Aa x Aa B) AaBb x AaBb C) AaBbCc x AaBbCc D) AaBB x AaBB

2. What is the function of the Golgi apparatus in a cell?

A) Protein synthesis B) ATP production C) Lipid breakdown D) Protein modification and packaging

3. Which of the following is an example of a vestigial structure in humans?

A) Human brain B) Human eye C) Appendix D) Heart

4. The process of glycolysis takes place in which cellular organelle?

A) Mitochondria B) Nucleus C) Golgi apparatus D) Cytoplasm

5. Which of the following is responsible for regulating blood sugar levels in the body?

A) Insulin B) Glucagon C) Thyroxine D) Adrenaline

6. In which phase of mitosis do the sister chromatids separate and move to opposite poles of the cell?

A) Prophase B) Metaphase C) Anaphase D) Telophase

7. Which type of biomolecule is composed of amino acids and plays a crucial role in cell structure and function?

A) Lipids B) Nucleic acids C) Carbohydrates D) Proteins

8. Which of the following is a greenhouse gas responsible for trapping heat in Earth's atmosphere?

A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen

9. What is the smallest unit of life that can carry out all the functions of life?

A) Cell B) Tissue C) Organ D) Organism

10. Which of the following is a method of asexual reproduction in plants where a new plant grows from a specialized stem?

A) Budding B) Regeneration C) Fragmentation D) Runners

11. Which part of the human brain is responsible for coordinating muscle movements and maintaining balance?

A) Cerebrum B) Cerebellum C) Medulla oblongata D) Hypothalamus

12. The Hardy-Weinberg equilibrium describes a situation in which:

A) Mutation rates are high in a population. B) Genetic drift is the primary factor influencing allele frequencies. C) Allele frequencies remain constant from generation to generation. D) Natural selection leads to the extinction of a species.

13. What is the role of the enzyme DNA polymerase in DNA replication?

A) Unzipping the DNA double helix B) Adding nucleotides to the growing DNA strand C) Proofreading and correcting errors in the DNA sequence D) Initiating the formation of the RNA primer

14. Which of the following is a function of the respiratory system?

A) Pumping blood throughout the body B) Producing hormones for growth and development C) Breaking down food for energy D) Exchanging gases with the external environment

15. Which of the following is NOT a characteristic of living organisms?

A) Growth and development B) Reproduction C) Ability to move D) Response to stimuli

16. In which ecosystem would you expect to find organisms adapted to extreme conditions like high salinity?

A) Tropical rainforest B) Desert C) Coral reef D) Grassland

17. What is the main function of white blood cells in the human body?

A) Carrying oxygen B) Fighting infections C) Producing insulin D) Digesting food

18. Which type of ecological pyramid represents the biomass of various trophic levels in an ecosystem?

A) Pyramid of numbers B) Pyramid of energy C) Pyramid of biomass D) Pyramid of biodiversity

19. Which of the following is an example of a parasitic relationship?

A) Bees pollinating flowers B) Humans farming crops C) Sharks and remoras D) Wolves hunting in a pack

20. Which process involves the conversion of nitrogen gas in the atmosphere into forms that can be used by plants?

A) Photosynthesis B) Respiration C) Nitrogen fixation D) Transpiration

21. Which of the following is a key difference between mitosis and meiosis?

A) Mitosis results in genetically diverse daughter cells. B) Meiosis results in diploid daughter cells. C) Mitosis occurs only in gametes. D) Meiosis involves two rounds of cell division.

22. What is the role of the pancreas in the digestive system?

A) Producing bile for fat digestion B) Absorbing nutrients from digested food C) Producing enzymes that break down carbohydrates, proteins, and fats D) Regulating blood sugar levels by releasing insulin and glucagon

23. Which of the following is a renewable energy source produced through the process of photosynthesis?

A) Natural gas B) Coal C) Wind D) Oil

24. Which of the following is an example of convergent evolution?

A) Dolphins and sharks both having streamlined bodies for swimming B) Humans and chimpanzees sharing a common ancestor C) Darwin's finches on the Galápagos Islands adapting to different diets D) Bats and birds both having wings for flight

25. Which of the following is a component of the central nervous system?

A) Spinal cord B) Somatic nervous system C) Autonomic nervous system D) Peripheral nervous system

26. What is the primary function of the small intestine in the digestive system?

A) Absorbing water B) Storing bile C) Breaking down carbohydrates D) Absorbing nutrients from digested food

27. Which of the following is NOT a characteristic of the Kingdom Animalia?

A) Multicellular B) Heterotrophic C) Autotrophic D) Eukaryotic

28. Which of the following is a type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed?

A) Mutualism B) Parasitism C) Commensalism D) Predation

29. What is the process by which water vapor is released from plant leaves into the atmosphere?

A) Condensation B) Transpiration C) Precipitation D) Evaporation

30. Which of the following is the primary function of the endocrine system?

A) Pumping blood throughout the body B) Breaking down food for energy C) Regulating hormone levels D) Exchanging gases with the environment

31. Which of the following cellular structures is responsible for producing energy in the form of ATP?

A) Nucleus B) Golgi apparatus C) Mitochondria D) Endoplasmic reticulum

32. Which of the following is a type of genetic variation caused by a change in a single nucleotide of DNA?

A) Chromosomal rearrangement B) Gene duplication C) Point mutation D) Hybridization

33. Which type of muscle is under voluntary control and is responsible for movements like walking and talking?

A) Smooth muscle B) Cardiac muscle C) Skeletal muscle D) Striated muscle

34. Which of the following is a type of ecological succession that occurs in an area with no previous soil?

A) Primary succession B) Secondary succession C) Climax community D) Pioneer community

35. In which phase of the cell cycle does DNA replication occur?

A) G1 phase B) G2 phase C) S phase D) M phase

36. What is the process by which an organism produces its own food using sunlight?

A) Photosynthesis B) Respiration C) Fermentation D) Digestion

37. Which of the following is responsible for carrying oxygen in the bloodstream?

A) Hemoglobin B) Myoglobin C) Insulin D) Melanin

38. What is the term for the process by which water evaporates from the surface of plant leaves?

A) Transpiration B) Condensation C) Precipitation D) Sublimation

39. Which of the following cell organelles is responsible for packaging and shipping proteins within the cell?

A) Nucleus B) Mitochondria C) Golgi apparatus D) Chloroplast

40. Which of the following is a type of cell division that produces two identical daughter cells?

A) Mitosis B) Meiosis C) Binary fission D) Budding