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What are the basic units of life in biology?

Cells are the basic units of life, making up all living organisms.

What is the study of ecosystems concerned with?

The study of ecosystems involves understanding the interactions between organisms and their environment.

What does the particle model in chemistry explain?

The particle model explains the behavior of solids, liquids, and gases in terms of the arrangement and movement of particles.

What are mixtures and separation in chemistry?

Mixtures consist of two or more substances that are not chemically combined, and separation techniques are used to separate these substances based on their physical properties.

What are atoms, elements, and compounds?

Atoms are the smallest units of matter; elements are pure substances consisting of one type of atom; compounds are substances formed from two or more elements chemically bonded together.

What are forces in physics?

Forces are pushes or pulls that can change the motion of an object.

What is sound in physics?

Sound is a form of energy that travels through waves, produced by vibrating objects.