Carbon dioxide-oxygen cycle

Which answer best defines organisms?

• a gas in the atmosphere that plants use during the process of photosynthesis
• living things
• tiny holes in the leaves of a plant that allow gases to enter or leave a plant
• plant parts that hold a plant in place and take in water and nutrients

Which answer best defines chlorophyll?

• the green substance in plant leaves that captures energy from the sun 
• living things
• a gas in the atmosphere that plants use during the process of photosynthesis
• the process in which plants use energy from

Which answer best defines carbon dioxide?

• A gas in the atmosphere that animals breathe to survive
• a green substance in plant leaves that captures energy fro the sun
• The process in which plants use energy fro the sun to make their own food
• a gas in the atmosphere that plants use during the process of photosynthesis

Stomata is best defined as

• tiny holes in the leaves of a plant that allow gases to enter or leave the plant
• a gas in the atmosphere that plants use during the process of photosynthesis
• Plant parts that hold a plant in place and takes in water and nutrients
• living things

Which answer best defines photosynthesis?

• the movement of carbon dioxide and oxygen between organisms and the air
• Tiny holes in the leaves of a plant that allow gases to enter or leave the plant
• the process in which plants use energy from the sun to make their own food
• a gas in the atmosphere that plants use to make food

The carbon dioxide-oxygen cycle is best defined as-

• the process in which plants use energy from the sun to make their own food
• a green substance in plant leaves that captures energy from the sun
• living things
• the movement of carbon dioxide and oxygen between organisms and the air

Which answer best defines roots?

• a plant part that holds leaves up and moves water and nutrients throughout the plant
• plant part that hold a plant in place and take in water and nutrients
• a plant part that carries out photosynthesis to make food for the plant
• tiny holes in the leaves of a plant that allow gases to enter or leave the plant

Which answer best defines stem?

• a plant part that holds leaves up and moves water and nutrients through the plant
• plant parts that hold a plant in place and take in water and nutrients
• a plant part that carries out photosynthesis to make food for the plant
• tiny holes in the leaves of a plant that allow gases to enter or leave the plant

Leaf is best defined as-

• a plant part that holds leaves up and moves water and nutrients throughout the plant
• plant parts that hold a plant in place and take in water and nutrients
• a plant part that carries out photosynthesis to make food for the plant
• tiny holes in the leaves of a plant that allow gases to enter or leave the plant