In an Open Circulatory System

question 11

Multiple Choice

In an open circulatory system,

• A) hemolymph enters the heart via ostia.
• B) blood leaves the heart via venules.
• C) the heart has two or more chambers.
• D) nutrients are exchanged across the walls of capillaries.
• E) blood is pumped into cavities called ventricles.

---

Definitions:

Explanatory Variables

Elements within a statistical model that are responsible for fluctuations in the dependent variable, often called independent variables.

Marital Status

A person's legal relationship status, indicating whether they are single, married, divorced, or widowed.

Level Of Happiness

A subjective assessment or measure of a person's feelings of well-being or joy, often on a scale.

Skill Level

A measure of competence or proficiency in a specific area or activity.