Africa Storyline Unit Review

Calculate the total calories consumed by a sea turtle that eats 2 fish (400 kcal each), 1 jellyfish (100 kcal), and 3 squid (350 kcal each).

• 1,500 kcal

• 1,750 kcal

• 1,950 kcal

• 2,100 kcal

What is the caloric value of one squid?

• 250 kcal

• 300 kcal

• 350 kcal

• 400 kcal

How does the size of an organism affect its energy requirements?

• Larger organisms require more energy.

• Smaller organisms require more energy.

• Size has no effect on energy requirements.

• Energy requirements are the same for all organisms.

What is the process by which plants convert sunlight into energy?

• Respiration

• Photosynthesis

• Transpiration

• Fermentation

What is the caloric value of one jellyfish?

• 50 kcal

• 100 kcal

• 150 kcal

• 200 kcal

What is the primary source of energy for most ecosystems?

• The sun, through photosynthesis.

• Geothermal energy from the Earth's core.

• Wind energy from atmospheric movements.

• Nuclear energy from radioactive materials.

Why is energy transfer in food chains typically inefficient?

• Because energy is lost as heat at each trophic level.

• Because energy is stored in the producers only.

• Because consumers do not utilize all the energy from their food.

• Because energy is converted into matter at each trophic level.

When is it beneficial for organisms to hunt solo?

• When their prey is small in size.

• When they are in a group.

• When the environment is crowded.

• When they are competing with other predators.

What role do bacteria play in the nitrogen cycle?

• They help bring nitrogen from the atmosphere to the soil.

• They decompose organic matter into carbon dioxide.

• They convert nitrogen into ammonia for plants.

• They absorb nitrogen directly from the soil.

What is the caloric value of one fish?

• 200 kcal

• 300 kcal

• 400 kcal

• 500 kcal