Life Science

Life science includes all fields of science involving the study of living organisms such as plants, animals and humans. Life science is for upper primary/lower secondary level school students. There are 18 modules and 102 lesson topics.

Module 1: Interaction of Living Organisms

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Abiotic and Biotic Factors

Ecosystems contain all the nonliving and living parts of the environment in a given area. The nonliving parts-called abiotic factors-include sunlight, water, soil and air.


The living or once-living parts of an ecosystem- called biotic factors include living organisms and the decayed remains of dead organisms.

Interactions of Living Things

More than one population can live in the same habitat because each species has a different way of using the resources.

A niche is the way a species interacts with abiotic and biotic factors to obtain food, find shelter, and fulfill other needs.

Symbiosis

A symbiosis is a close, long term relationship between two species that usually involves an exchange of food or energy.

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Types of Symbiosis

MUTUALISM

In mutualism, both species benefit from the relationship.

COMMENSALISM

In commensalism, one species benefits from the relationship and the other species is neither harmed nor benefited.

PARASITISM

In parasitism, one species (the parasite) benefits and the other (the host) is harmed.

What Makes Something Alive? A Life Science Exploration

Have you ever wondered what makes something alive? From the smallest microbes to the largest animals, living things share unique characteristics that set them apart. In this video, we’ll explore the incredible diversity of life on Earth by understanding what living things are and how they interact with their environment.

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