Perform the Indicated Operations

question 7

Multiple Choice

Perform the indicated operations.
--2(9 - 4 + 3)

• A)16
• B)20
• C)-20
• D)-16

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Definitions:

Cephalopods

Cephalopods are a class of mollusks that includes squid, octopuses, and cuttlefish, known for their advanced nervous systems, highly developed eyesight, and ability to change color and texture.

Annelids

A phylum of invertebrate worms characterized by segmented bodies and often found in wet environments.

Hemoglobin

A protein found in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Oxygen-Transporting Pigment

Molecules, such as hemoglobin in vertebrates, responsible for carrying oxygen from the respiratory organs to the rest of the body.