Section 1
Animals Consume Food to Obtain Energy
Unlike plants, animals are heterotrophs that must eat other organisms to survive. They can be herbivores (eat plants), carnivores (eat animals), or omnivores (eat both plants and animals).
In this Grade 7 Life Science lesson from Chapter 10, students learn that animals are consumers and heterotrophs that must obtain energy by eating other organisms, unlike plants that produce their own food. Students explore how animals are classified as herbivores, carnivores, or omnivores based on what they eat, and how digestion breaks down complex food compounds into simpler materials that cells can absorb. The lesson also covers animal behaviors such as predator-prey relationships, migration, and hibernation as ways animals respond to their environment.
Section 1
Animals Consume Food to Obtain Energy
Unlike plants, animals are heterotrophs that must eat other organisms to survive. They can be herbivores (eat plants), carnivores (eat animals), or omnivores (eat both plants and animals).
Section 2
Digestive Systems Break Down Food Into Nutrients
Animals process food through digestion, breaking complex compounds into simpler forms that cells can absorb. Most animals have tube-like digestive systems where food enters through the mouth and waste exits elsewhere.
Section 3
Animals Respond to Environmental Stimuli Through Behaviors
Animals exhibit behaviors—observable responses to stimuli like hunger, danger, or temperature changes. These behaviors can be inherited or learned, allowing animals to meet basic needs and interact with others.
Section 4
Predators Hunt While Prey Develops Defense Strategies
Predators have adaptations for hunting other animals, while prey species develop defensive behaviors and structures. Some, like antelopes, gain protection from living in herds, while others use physical defenses.
Section 5
Animals Adapt to Seasonal Changes Through Movement
When environments change seasonally, animals respond through migration (moving to different regions) or hibernation (entering a sleeplike state with slowed body systems to conserve energy during food scarcity).
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Section 1
Animals Consume Food to Obtain Energy
Unlike plants, animals are heterotrophs that must eat other organisms to survive. They can be herbivores (eat plants), carnivores (eat animals), or omnivores (eat both plants and animals).
Section 2
Digestive Systems Break Down Food Into Nutrients
Animals process food through digestion, breaking complex compounds into simpler forms that cells can absorb. Most animals have tube-like digestive systems where food enters through the mouth and waste exits elsewhere.
Section 3
Animals Respond to Environmental Stimuli Through Behaviors
Animals exhibit behaviors—observable responses to stimuli like hunger, danger, or temperature changes. These behaviors can be inherited or learned, allowing animals to meet basic needs and interact with others.
Section 4
Predators Hunt While Prey Develops Defense Strategies
Predators have adaptations for hunting other animals, while prey species develop defensive behaviors and structures. Some, like antelopes, gain protection from living in herds, while others use physical defenses.
Section 5
Animals Adapt to Seasonal Changes Through Movement
When environments change seasonally, animals respond through migration (moving to different regions) or hibernation (entering a sleeplike state with slowed body systems to conserve energy during food scarcity).
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter