Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Living things carry out seven essential life processes, often remembered by the mnemonic : Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, and Nutrition.
A habitat is a specific place where a plant or animal lives. It must provide the organism with its basic needs, including food, shelter, and .
Local environments are small-scale areas like a school garden, a local pond, or a woodpile. Within these are 'micro-habitats' which have specific conditions for small creatures.
Animals and plants are adapted to their environments. For example, a fish has gills to extract from , while a cactus stores to survive in dry deserts.
Identification keys (branching keys) are tools used to group and name living things by asking a series of questions based on physical characteristics.
📐Formulae
💡Examples
Problem 1:
A student finds a woodlouse under a damp log. Why is the log considered its habitat, and what resource is the woodlouse seeking?
Solution:
The log is the habitat because it provides shelter and moisture. The woodlouse is seeking and protection.
Explanation:
Small animals like woodlice need damp conditions to breathe and stay hydrated; the trapped under the log prevents them from drying out.
Problem 2:
Classify a rock, a dried leaf, and a pet rabbit using the categories: Living, Non-living, or Once-living.
Solution:
Rabbit = Living; Dried leaf = Once-living; Rock = Non-living.
Explanation:
The rabbit undergoes . The leaf was part of a living tree but has stopped performing life processes, so it is once-living. The rock never performed these processes.
Problem 3:
In a local pond environment, how do plants contribute to the survival of fish?
Solution:
Plants produce and provide food/shelter.
Explanation:
Through biological processes, underwater plants release into the , which fish need to breathe through their gills.