Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
Tropism
|
The growth response of a plant toward or away from the stimulus
|
|
|
Hormone
|
A chemical that affects growth and development
|
|
|
Auxin
|
A plant hormone that speeds up the rate of growth of plant cells
|
|
|
Photoperiodism
|
A plant's response to seasonal changes in length of night and day
|
|
|
Short-day plant
|
A plant that flowers when the nights are longer than the plant's critical night length
|
|
|
Long-day Plant
|
A plan's flowers when the nights are shorter that the plant's critical night length
|
|
|
Critical Night Length
|
The numbers of hours of darkness that determines whether or not a plant will flower
|
|
|
Day-neutral plant
|
A plant with a flowering cycle that is not sensitive to periods of darkness and light
|
|
|
Dormancy
|
A period when an organism's growth or activity stops
|
|
|
Annual
|
A flowering plant that completes its life cycle in one growing season
|
|
|
Biennial
|
A flowering plant that completes its life cycle in two years
|
|
|
Perennial
|
A flowering plant that lives for more than two years
|
