Ima

it is usually about non-native (invasive) species entering the Sonoran Desert ecosystem.

The Sonoran Desert is a large desert that stretches across parts of Arizona, California, Sonora (Mexico), and Baja California. It is home to unique plants and animals such as saguaro cacti, coyotes, roadrunners, and Gila monsters.

Who are the intruders?"Intruders" are usually invasive species—plants or animals that do not naturally belong in the Sonoran Desert but have been introduced there.

Examples include:

• Buffalo grass – an invasive grass that spreads quickly and increases the risk of wildfires.

• Red brome – another invasive grass that competes with native plants.

Nutrients are substances in food that our body needs to live, grow, stay healthy, and get energy.

There are 6 main nutrients:

1. Carbohydrates – The body's main source of energy.

   • Examples: Rice, bread, potatoes, pasta.

2. Proteins – Help build and repair muscles, skin, and other body tissues.

   • Examples: Eggs, fish, beans, meat, milk.

Definition:Breathing (or ventilation) is the process of taking air into the lungs (inhalation) and pushing air out of the lungs (exhalation).

Two stages of breathing

1. Inhalation (Breathing in)

• The diaphragm contracts and moves downward.

• The rib muscles contract, moving the ribs up and out.

Thermal Energy is the energy that comes from the movement of tiny particles (atoms and molecules) inside a substance.

A simple definition:

Thermal energy is the total energy of all the moving particles in an object.

Examples:

• A hot cup of tea has more thermal energy than a cold cup of tea.

• Fire gives off thermal energy.