Uno
This part of the plant anchors it into the ground.
What are the roots?
This part of the plant carries substances between the root and leaves.
What is the stem?
This type of root system has single, thick root structures with smaller branching roots.
What are taproot systems?
This part of the plant absorbs water and nutrients.
What are roots?
These root systems are small and branch out from a single point.
What are fibrous roots?
What is a negative tropism?
This is the part of the leaf that connects the blade to the stalk.
What is the petiole?
This is another name for water loss.
What is transpiration?
This is the thin, flat section of leaf that captures sunlight.
What is the blade?
These are the openings on the underside of the leaves that facilitate O2 and CO2 exchange and help reduce water loss.
What are stomata?
These are the places on the stem where the leaves are attached.
What are nodes?
These capture sunlight and carry out photosynthesis.
What are leaves?
What is the undeveloped plant tissue on the stem near the nodes called?
What are buds?
A plant's growth response toward or away from a stimulus.
What is a tropism?
The regions on the stem between where the leaves are attached are called ____.
What are internodes?
These angiosperms live for more than two years.
What are perennials?
These angiosperms complete their life cycle within two years.
What are biennials?
A chemical that affects how a plant grows and develops is called a _____.
What is a hormone?
These angiosperms have a life cycle within one growing season.
What are annuals?
This is the period when an organism's growth or activity stops.
What is dormancy?
When a plant grows toward light.
What is phototropism?
A plant's growth in response to gravity is called ____.
What is gravitropism?
This is a plant's growth in response to water.
What is hydrotropism?
This is a plant's response to touch.
What is thigmotropism?
This is a plant's response to seasonal changes in the length of night and day.
What is photoperiodism?