*Question*
Answer the following question given this paragraph:      Q: Phylum chordata consists of two subphyla of invertebrates, as well as the hagfishes and what else?   Choices:  - lipids  - organs  - cells  - vertebrates  A:
**Answer**
vertebrates

*Question*
Answer the following question given this paragraph:   Physical science is the study of matter and energy. It includes chemistry and physics.   Q: What type of science is the study of matter and energy and includes chemistry and physics?   Choices:  - biology  - Earth science  - genetics  - physical science  A:
**Answer**
physical science

*Question*
Answer the following question given this paragraph:   The focus of an earthquake is in the ground where the ground breaks. The epicenter is the point at the surface just above the focus.   Q: Which part of an earthquake is in the ground where the ground breaks?   Choices:  - the epicenter  - the tectonic plate  - the fault  - the focus  A:
**Answer**
the focus

*Question*
Answer the following question given this paragraph:   The process in which organ systems work to maintain a stable internal environment is called homeostasis. Keeping a stable internal environment requires constant adjustments. Here are just three of the many ways that human organ systems help the body maintain homeostasis:.   Q: What is the process in which organ systems work to maintain a stable internal environment?   Choices:  - ketosis  - homogeneity  - organ balance  - homeostasis  A:
**Answer**

homeostasis