Explanation

• Human beings are omnivores because we eat a variety of foods including plants (fruits, vegetables, grains), animals (meat, poultry, fish), and products derived from animals (dairy, eggs).

Explanation

• Omnivores can be both secondary and tertiary consumers, depending on their diet and position in the food chain.
• They can eat primary consumers (herbivores) as secondary consumers, and also eat secondary consumers (other carnivores or omnivores) as tertiary consumers.

Explanation

• Omnivores are consumers that eat both producers (plants and algae) and consumers (other animals).
• They have a varied diet that includes both plant and animal matter.
• Examples of omnivores include humans, bears, pigs, and chimpanzees.

Explanation

Wolf is a tertiary consumer because it eats both primary consumers (mice) and secondary consumers (cats).

Explanation

• Tertiary consumers are animals that eat primary and secondary consumers.
• They are typically apex predators that have no natural predators in the wild and are at the top of their food chain.
• Examples of tertiary consumers include lions, sharks, bears, and humans.

Explanation

• Cat is a secondary consumer because it eats primary consumers (birds and mice).
• Which are herbivores that eat plants and plant products.

Explanation

• Carnivores are secondary consumers that eat primary consumers (herbivores).
• In this case, birds and mice are primary consumers (herbivores) that eat plants and plant products.
• Carnivores that eat birds and mice are secondary consumers.

Examples of carnivores that might eat birds and mice include:

• Hawks and owls (birds of prey)
• Foxes, wolves, and cats (mammals)
• Snakes and lizards (reptiles)

Explanation

Secondary consumers are animals that eat primary consumers (herbivores). They are carnivores that feed on the animals that eat plants and plant products. Examples of secondary consumers include:

• Predators like lions, dogs, wolves, and hawks
• Fish that eat smaller fish or crustaceans
• Insects like ladybugs that eat aphids

Explanation

Sheep and birds are primary consumers because they eat plants and plant products, such as grass, leaves, seeds, and fruits.

Explanation

In the absence of sunlight, the entire food chain would become inactive and collapse because:

• Plants and algae, the primary producers, cannot undergo photosynthesis and produce energy.
• Herbivores cannot feed on plants, and carnivores cannot feed on herbivores.
• The energy flow from producers to consumers would be disrupted, leading to a collapse of the food chain.