Biology Past Questions And Answers
Which of these plants has an emerginate apex?
- A) Bauhinia
- B) Pistia
- C) Ixora
- D) Musa
In monohybrid inheritance, if an organism carries two different alleles for a particular gene, it is called:
- A. Homozygous
- B. Dominant
- C. Heterozygous
- D. Recessive
Which of the following soil types becomes less fertile due to the intense leaching caused by tropical rains?
- A. Yellow soil
- B. Laterite soil
- C. Red soils
- D. Black soil
Even though some flowering plants contain accessory pigments which give them colors, they still contain the pigment
- A) melanin
- B) chlorophyll
- C) carotene
- D) xanthophill
The direction wind is determined by
- A. an anemometer
- B. a Secchi disc
- C. a wind vane
- D. a barometer
What will be the chromosome number of the hybrid of two varieties of a plant with 36 chromosomes in the endosperm cell?
- A. 12
- B. 24
- C. 35
- D. 48
The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?
- A. osmosis
- B. autolysis
- C. plasmolysis
- D. diffusion
The sheet of muscle that separates the thoracic and the abdominal cavities is the?
- A. diaphragm
- B. intercostal muscle
- C. pleural memberane
- D. pericardium
Which of the following is not an organ?
- A) leaf
- B) heart
- C) kidney
- D) bone
An example of Vascular tissues is _______
- A) Trichome
- B) Xylem
- C) Stomata
- D) Epidermis