Which gland is responsible for producing the hormone insulin?
- A. Thyroid gland
- B. Pituitary gland
- C. Pancreas
- D. Adrenal gland
Which of the following is the primary organ involved in gas exchange during respiration in humans?
- A. Diaphragm
- B. Bronchi
- C. Lungs
- D. Trachea
The term cell was given by
- A. Robert Hooke
- B. Schwann
- C. De Bary
- D. Tatum
Which of the following represents an example of ecological management and conservation through a biological association?
- A. Construction of a dam for hydroelectric power
- B. Introduction of an invasive species for pest control
- C. Clear-cutting of a forest for timber extraction
- D. Establishment of marine protected areas
Which of the following are components of the skeletal system in humans?
- A. Cartilage and blood vessels
- B. Ligaments and tendons
- C. Muscles and nerves
- D. Bones and joints
Which of the following is an example of physiological variation in organisms?
- A. Variation in blood pressure among individuals
- B. Variation in beak shape among finches
- C. Differences in fur color in rabbits
- D. Variation in leaf shape in plants
A biome characterized by hot summer, warm winter and treeless vegetation is
- A. Steppe grasslands
- B. Temperate deserts
- C. Savannah grassland
- D. Tropical deserts
Which of the following is a characteristic feature of Kingdom Plantae?
- A. Presence of chloroplasts
- B. Ability to perform photosynthesis
- C. Lack of cell walls
- D. Heterotrophic mode of nutrition
Which of the following is an evolutionary trend commonly observed in organisms?
- A. Decreased complexity over time
- B. Increased dependence on external resources
- C. Increased genetic diversity within populations
- D. Decreased adaptation to the environment
Which of the following is NOT a part of the alimentary canal?
- A. Oesophagus
- B. Large intestine
- C. Liver
- D. Small intestine
Which of the following is an example of an adaptation for survival in social insects?
- A. Migration to warmer climates
- B. Production of venom for defense
- C. Formation of complex caste systems
- D. Hibernation during winter months
Which of the following is evidence of evolution?
- A. All of the above.
- B. Similarities in embryonic development
- C. Fossils of extinct organisms
- D. Homologous structures in different species
The membrane around the vacuole is known as
- A. Elaioplast
- B. Amyloplast
- C. Tonoplast
- D. Cytoplast
Which of the following is a characteristic of cells related to irritability?
- A. Ability to respond to stimuli
- B. Ability to synthesize proteins
- C. Ability to generate energy
- D. Ability to replicate DNA
Which of the following is an example of a microorganism in action as a disease vector?
- A. Fungi decomposing dead plant material
- B. Mosquito transmitting malaria
- C. Bacteria causing food poisoning
- D. Algae producing oxygen through photosynthesis