If You Play with a Living Anemone with a Probe,it

question 38

Multiple Choice

If you play with a living anemone with a probe,it will withdraw even if you vibrate the probe like a food animal would vibrate; it also withdraws if you just add sugar.However,it reaches out and grasps an object that both vibrates and tastes like food.The use of such a double system prevents unnecessary firing of expensive nematocysts.Why are nematocysts "expensive"?

• A) The organism dies without nematocysts.
• B) The research equipment to detect them is very expensive.
• C) Nematocysts are used in medicine and are very expensive to harvest.
• D) The nematocyst is very complex and costs the anemone much energy to build.
• E) The nematocyst can only be used for food and doesn't "fire" for non-food objects.

---

Definitions:

Setting Goals

The process of identifying something that you want to accomplish and establishing measurable objectives and timeframes to help you achieve it.

Dreaming

The experience of images, ideas, emotions, and sensations occurring involuntarily in the mind during certain stages of sleep.

Complex Tasks

Tasks that involve multiple steps, components, or variables, requiring higher-order thinking skills to accomplish.

Inattentional Blindness

A psychological lack of attention that is not associated with any vision defects or deficits, causing an individual to fail to perceive an unexpected stimulus.