The United States Has About ________ Percent of the World's

question 110

Multiple Choice

The United States has about ________ percent of the world's population and is responsible for ________ percent of its greenhouse gas emissions.

• A)1; 5
• B)4; 14
• C)10; 45
• D)20; 60

---

Definitions:

Receives Stimuli

The capacity of an organism or system to respond to environmental signals or changes.

Dendrite

is a tree-like extension of a neuron that receives electrical impulses from other neurons.

Axon

An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Myelin Sheath

A fatty layer that surrounds the axons of some nerve cells, serving to speed up the electrical communication between neurons.