A flower is damaged just as it opens. For this flower to become a fruit, which flower structure must remain undamaged?

Which flower, after it is fertilized, will develop the most seeds?

Which of the following is a substance that contaminates the environment?

Which process is a major source of oxygen in the atmosphere?

Which gases are exchanged during photosynthesis?

What happens to light energy during photosynthesis?

An indoor plant is placed in front of a window. After two weeks, the plant is leaning towards the window. Why is the plant leaning?

The main result of respiration is the

Which of these is a necessary requirement for photosynthesis to occur?

Why are plants that photosynthesize important for the human population?

What is the function of plant leaves?

Which plant function do flowers serve?

Root systems of some plants help to anchor them into the soil. What other function do roots serve in plants?

Which is the best explanation for why a flower's petals are more colorful than other plant parts?

Which part of the flower is the pistil?

Which of the following is the male flower part?

What gas do plants take in from the air for photosynthesis?

What is needed for respiration to occur?

The main result of respiration is the

The loss of water through the tiny holes on the leaves of plants, also known as the stomata, is called

Some trees are dormant during the winter in order to

What plant process produces water, carbon dioxide, and energy?

What are the products of photosynthesis?

Which plant pigment traps most of the light energy used in photosynthesis?

Which plant function do flowers serve?

What do geologists call the Earth's crust and upper mantle?

Tectonic plate movement is caused by

Waves move