Growth of Organisms

Front

What is Gravitropism?

Back

Gravitropism is the growth of plant roots downward in response to gravity, allowing them to access water and nutrients in the soil.

Front

What is Phototropism?

Back

Phototropism is the growth of a plant toward a light source.

Front

What is Thigmotropism?

Back

Thigmotropism is the growth of a plant in response to touch or physical contact.

Front

What is the effect of burning fossil fuels on the atmosphere?

Back

Burning fossil fuels increases the amount of carbon dioxide in the atmosphere.

Front

What human activities can be harmful to plants?

Back

Introducing invasive plant species, blocking sunlight with structures, and polluting soil and groundwater are harmful activities.

Front

Who collects information about crop yields in the US?

Back

The US Department of Agriculture collects information about crop yields each year.

Front

What is the role of roots in plants?

Back

Roots anchor the plant in the soil and absorb water and nutrients necessary for growth.

Front

What is the importance of sunlight for plants?

Back

Sunlight is essential for photosynthesis, the process by which plants make their food.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What are invasive species?

Back

Invasive species are non-native plants or animals that can harm the ecosystem they invade.