Define: Perigynous Flower

The point at which the soil holds the most possible water is

Movement of a plant part in response to light is called

Define: Spike

Define: Catkin

The oxygen released by photosynthesis comes from

Define: Hesperidium

Which of the following hormones promotes leaf abscission?

Which of the following structures or adaptations do not reduce the rate of transpiration?

Define: Nastic Movement