1. What is the primary role of Energy Storage Molecules (ESMs) within a living organism?
- A. To provide structural support to cells
- B. To serve as the main source of fuel for life processes
- C. To carry genetic information from one generation to the next
- D. To transport oxygen throughout the body
2. Which pair of substances are both examples of Energy Storage Molecules that organisms use for fuel?
- A. Water and oxygen
- B. Glucose and fat
- C. DNA and RNA
- D. Salts and minerals
3. An animal is in an environment with very limited food, leading to a shortage of ESMs. Which biological process is most likely to be directly impaired as a result?
- A. Breathing
- B. Sensory perception
- C. Reproduction
- D. Blood circulation
4. How do organisms primarily obtain the Energy Storage Molecules they need to survive?
- A. By absorbing sunlight directly into their cells for energy
- B. By producing them from water and minerals alone
- C. By breathing in specific gases from the atmosphere
- D. By consuming food and breaking it down
5. After an organism consumes food, what must happen to the energy within the resulting ESMs to make it usable for cellular work?
- A. It must be converted into a usable form like ATP.
- B. It must be stored indefinitely as fat tissue.
- C. It must be immediately expelled from the body as waste heat.
- D. It must be transformed directly into new cells without conversion.
6. According to the principles of population biology, what is the most direct outcome for a species when its primary food source becomes more abundant?
- A. The organisms will immediately evolve new traits to consume the food faster.
- B. The population will have more energy available for reproduction.
- C. The rate of deaths from disease will suddenly increase due to overeating.
- D. The population will instinctively migrate to a new territory to prevent overcrowding.
7. A severe drought significantly reduces the berry crop that a population of bears relies on. How will this scarcity of food most likely affect the bear population in the following year?
- A. The adult bears will grow larger in size by conserving energy.
- B. Fewer female bears will successfully give birth to cubs.
- C. The population will experience a lower death rate.
- D. The bears will quickly learn to hunt for different animals.
8. Which statement best describes the relationship between resource availability and an organism's birth rate?
- A. They are inversely related.
- B. They are directly linked.
- C. The relationship is random.
- D. They are unrelated.
9. The number of births within a population is most directly controlled by which factor?
- A. The number of predators
- B. The availability of food
- C. The presence of disease
- D. The amount of available space
10. A population of rabbits lives in a field where, due to a particularly rainy spring, there is an unusually large growth of clover. What is the most likely immediate effect on the rabbit population?
- A. A decrease in the number of births due to overcrowding.
- B. A shift in the rabbits' diet to include different types of food.
- C. A rapid increase in the average lifespan of individual rabbits.
- D. An increase in the number of litters and offspring produced per female rabbit.