What are the main functions of the circulatory system?

• The main functions of the circulatory system are transportation of blood and nutrients, regulation of body temperature, and immune response.

• Digestion of food and absorption of oxygen

• Storage of fat and minerals

• Production of hormones and enzymes

Name the three types of blood vessels in the human body.

• arteries, veins, capillaries

• veins, capillaries, tissues

• arteries, veins, lymphatics

• arteries, capillaries, nerves

What is the primary function of the respiratory system?

• To digest food and absorb nutrients.

• To circulate blood throughout the body.

• To regulate body temperature through sweating.

• To facilitate gas exchange (oxygen and carbon dioxide) between the body and the environment.

How do the skeletal and muscular systems work together?

• The skeletal system generates heat for muscle function.

• Muscles provide nutrients to the bones.

• The skeletal and muscular systems work together to facilitate movement and provide structural support.

• They operate independently without interaction.

What are the four states of matter?

• solid, liquid, gas, fog

• solid, liquid, gas, vapor

• solid, liquid, gas, plasma

• solid, liquid, gas, crystal

What happens to the particles in a solid when it melts?

• The particles in a solid gain energy, vibrate more, and move freely, transitioning into a liquid.

• The particles in a solid break apart and form gas immediately.

• The particles in a solid expand but remain fixed in place.

• The particles in a solid lose energy and become stationary.

How does temperature affect the state of matter?

• Temperature only affects gases, not solids or liquids.

• Temperature changes can cause matter to transition between solid, liquid, and gas states.

• Temperature changes do not affect the state of matter at all.

• All matter remains in a solid state regardless of temperature.

What is the difference between a physical change and a chemical change?

• A physical change alters the chemical composition, while a chemical change does not.

• A physical change creates energy, while a chemical change does not.

• A physical change is always reversible, while a chemical change is always irreversible.

• A physical change involves changes in state or appearance, while a chemical change results in new substances being formed.

Define an ecosystem.

• A group of unrelated animals in a zoo.

• A type of weather pattern.

• An ecosystem is a community of living organisms and their physical environment interacting as a system.

• A collection of plants in a garden.

What are the main components of a habitat?

• Only biotic factors like plants and animals

• Only abiotic factors like water and air

• The climate and geography of an area

• The main components of a habitat are abiotic factors (water, sunlight, soil, air) and biotic factors (plants, animals, microorganisms).