What is a stimulus?
It's something in an environment that CAUSES a living thing to REACT.
What are the three types of plant stimuli?
They're: LIGHT, WATER, and GRAVITY.
How do plants respond to stimuli?
Wow, you really know your stuff! / Sorry, we were looking for...
What is a tropism?
It's the REACTION of a plant to its ENVIRONMENT.
How are the adaptations of a desert plant different from those of a rainforest plant?
Wow, you really know your stuff! / Sorry, we were looking for...
Explain the adaptations of a cactus.
The STEM, SHAPE, ROOTS, and SPINE all have specific adaptations to help a cactus survive in the desert.
Other than water, light, and gravity, what TWO stimuli do plants react to?
CHEMICALS and HEAT.
Explain the adaptations of a mangrove tree.
They have WIDE SPREADING ROOTS FOR STABILIZATION IN WATER, THEIR ROOTS FILTER SALT WATER, and THEY GROW NEAR THE EDGE THE RAINFOREST FOR THE BEST SUNLIGHT.
How do "drip tip leaves" best suit plants in the rainforest?
Many plants have developed drip tip leaves to quickly FUNNEL WATER OFF THEMSELVES to prevent rotting and fungus growth.
Plants cannot move freely. How do they compensate for not being able to move and change their environment?
Plants instead ADAPT, REACT and CHANGE to their environment.
