Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 281:

  Which of the following is TRUE of the process of conjugation in Paramecium?

  Options:
  A) Micronucleus disintegrates
  B) Each ex-conjugant divides only once
  C) Macro nucleus undergoes division
  D) Each micronucleus divides twice
  Show Answer
  The correct answer is D .
• Question 282:

  Rabbits cannot survive in an aquatic habitat because they have

  Options:
  A) fore and hind limbs
  B) no gills
  C) no fins
  D) no scales
  Show Answer
  The correct answer is B .
• Question 283: Carbon (IV) oxide content of the atmosphere is least affected by Options:
  A) cutting down and clearing of forests
  B) forest fires
  C) burning of fossil fuels
  D) plant and animal respiration
  Show Answer
  The correct answer is A .
• Question 284: Which of the following groups of environmental factors are density-dependent? Options:
  A) Food, salinity, accumulation of matabolites and light
  B) Temperature, salinity predation and disease
  C) Food predation, disease and accumulation of metabolites
  D) Temperature food disease and light
  Show Answer
  The correct answer is C .
• Question 285: The factor that least affects food shortages in sub-saharan Africa is Options:
  A) flooding
  B) pests
  C) mixed-cropping
  D) drought
  Show Answer
  The correct answer is C .
• Question 286:

  The type of fruit that is formed from a single flower having several free carpels is?

  Options:
  A) indehiscent fruit
  B) aggregate fruit
  C) simple fruit
  D) fleshy fruit
  Show Answer
  The correct answer is B .
• Question 287: One common feature of the fungi, algae, mosses and ferns is that they Options:
  A) are photosynthetic
  B) show alternation of generation
  C) reproduce by means of conjugation
  D) can survive dry conditions
  E) have no seeds
  Show Answer
  The correct answer is E .
• Question 288: The appendicular skeleton comprises of Options:
  A) pectoral and pelvic girdles
  B) forelimbs, skull and pectoral girdle
  C) lungs and ribs
  D) skull and the vertebral column
  Show Answer
  The correct answer is A .
• Question 289: In eukaryotic cells,cellular respiration takes place in the Options:
  A) nucleus
  B) cytoplasm
  C) centrioles
  D) mitochondrion
  Show Answer
  The correct answer is D .
• Question 290: Coelom is absent in the class of animals termed Options:
  A) mollusca
  B) reptilia
  C) arthropoda
  D) coelenterata
  Show Answer
  The correct answer is D .