AP BIOLOGY

THE CELL

CELL THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A worm turns away from light is an example of a worm
A
reproducing
B
doing cellular respiration
C
having cells
D
responding to its environment
Explanation: 

Detailed explanation-1: -Answer: An earthworm turns away from light. Characteristic referred in this statement is Photophobia.

Detailed explanation-2: -Phototaxis is a kind of taxis, or locomotory movement, that occurs when a whole organism moves towards or away from a stimulus of light.

Detailed explanation-3: -Earthworms don’t have eyes like we do. Instead, they can sense light through their skin. These natural light sensors let the earthworms know when they are getting too close to a bright light, such as the sun. Earthworms try to stay out of sunlight because the heat from the sun dries out their skin.

Detailed explanation-4: -Even though worms don’t have eyes, they can sense light, especially at their anterior (front end). They move away from light and will become paralyzed if exposed to light for too long (approximately one hour). If a worm’s skin dries out, it will die.

Detailed explanation-5: -Earthworms have no eyes or ears, but they have light-sensitive cells that help them tell the difference between light and darkness. Their bodies are sensitive to vibrationsand worms may “outrun” the shovels of anglers digging worms for fish bait!

There is 1 question to complete.