This document discusses different types of taxis and tropisms in organisms, including:
- Phototaxis - Movement toward or away from light
- Chemotaxis - Movement toward or away from a chemical stimulus
- Geotaxis - Movement affected by gravity
- Thermotaxis - Movement toward or away from heat
- Hydrotaxis - Movement toward or away from water
It also discusses different types of plant responses like tropisms such as phototropism (growth toward light) and thigmotropism (growth influenced by touch). Several YouTube video examples are linked to demonstrate these concepts visually.
2. Simple response whose direction is determined
by the direction of the stimulus. This results in
a motile animal responding directly by moving
its whole body.
+ towards a stimulus
- away from a stimulus
Ex: phototaxis, chemotaxis, geotaxis,
magnetotaxis.
7. Parts of a plant will move slightly in response
to a stimulus. Are responses that occur in the
same way, regardless of the stimulus. Are
usually short-term, reversible changes.
8.
9. Name three types of stmuli that affect the
growth of plants.
Why is it important that the flowers of a
particular species open at the same time.
Mark which one is internal and external and
what response makes (muscular or glandular)
A- you have a stomach ache and decide to lay
down.
B- A lion gets hungry and eats a gazelle.
C- You see a spider and scream.
D- A squirrel sees a cut and runs.
E- a bird is thristy and drinks some water.
