The Horizontal Axis on a Time- Series Graph

question 30

Multiple Choice

The horizontal axis on a time- series graph

• A) runs parallel to the y- axis.
• B) measures units of time such as years.
• C) measures how the variable being graphed changes.
• D) measures the variable being graphed.

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Definitions:

Protonephridia

A network of dead-end tubules lacking internal openings in certain invertebrates, serving as an excretory and osmoregulatory system.

Nephridia

Excretory organs in many invertebrates, responsible for the removal of waste products from an organism's body.

Lancelets

Small, fish-like marine animals belonging to the subphylum Cephalochordata, known for their role as a model organism in evolutionary biology.

Nephridiopores

External openings of the nephridia, which are excretory organs in many invertebrates, allowing waste to exit the body.