Malcolm Is Visiting a Fish Farm and Is Imagining an Analogy

question 329

Multiple Choice

Malcolm is visiting a fish farm and is imagining an analogy for the action potential.He notices that all the fish start out in separate tanks that all feed into a main tank,where the food is.The entrance to the main tank is covered with some bars that the farmer can control.When he opens the bars,all the fish flow into the main tank in a massive rush.In his analogy,the fish are ions,and their flow into the main tank is what would cause the neuron to fire.What type of ion would the fish represent?

• A) potassium
• B) calcium
• C) sodium
• D) dopamine

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Definitions:

Acheulean Technology

A Stone Age technology characterized by distinctive oval and pear-shaped hand-axes, associated with early humans, particularly Homo erectus.

Genus Homo

The genus to which modern humans belong, characterized by higher mental faculties, upright posture, and bipedal locomotion.

Oldowan Tools

The earliest known stone tool industry, dating back to about 2.6 million years ago, associated with Homo habilis and used by early hominins for cutting, scraping, and processing animal and plant materials.

Homo Floresiensis

A species of small hominin that lived on the island of Flores, Indonesia, until about 50,000 years ago, known for its relatively small stature and brain size.