How Many Different Species of Organisms Do Scientists Believe Exist

question 29

Multiple Choice

How many different species of organisms do scientists believe exist on earth today?

• A)10,000
• B)1.5 million
• C)10 million
• D)1 billion

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Definitions:

Brain Structure

Refers to the physical form and organization of different parts of the brain, impacting functions and behaviors.

Left Side

Refers to the left part or aspect of something, often used in the context of locations, directions, or lateralization in the brain.

Limbic System

A complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Amygdala

A small, almond-shaped cluster of nuclei located deep within the temporal lobes of the brain, involved in processing emotions such as fear and pleasure.