Q: Answer the following question given this paragraph: The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that closes the eye. The occipitofrontalis muscle moves up the scalp and eyebrows. The muscle has a frontal belly and an occipital (near the occipital bone on the posterior part of the skull) belly. In other words, there is a muscle on the forehead ( frontalis) and one on the back of the head ( occipitalis), but there is no muscle across the top of the head. Instead, the two bellies are connected by a broad tendon called the epicranial aponeurosis, or galea aponeurosis (galea = "apple"). The physicians originally studying human anatomy thought the skull looked like an apple. The majority of the face is composed of the buccinator muscle, which compresses the cheek. This muscle allows you to whistle, blow, and suck; and it contributes to the action of chewing. There are several small facial muscles, one of which is the corrugator supercilii, which is the prime mover of the eyebrows. Place your finger on your eyebrows at the point of the bridge of the nose. Raise your eyebrows as if you were surprised and lower your eyebrows as if you were frowning. With these movements, you can feel the action of the corrugator supercilli. Additional muscles of facial expression are presented in Figure 11.8. Q: The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that does what? A: | OPTIONS:
- pressure the eye
- opens the eye
- moisturizes the eye
- closes the eye
A: closes the eye

Q: Answer the following question given this paragraph: The objects are at different temperatures, and heat flows from the hotter to the cooler object. This is always. Q: In which direction does heat always flow through objects? A: | OPTIONS:
- from low to high
- from cooler to hotter
- from left to right
- from hotter to cooler
A: from hotter to cooler

Q: Answer the following question given this paragraph: The stratosphere contains a layer of ozone gas. Ozone consists of three oxygen atoms (O 3 ). The ozone layer absorbs high-energy UV radiation. As you can see in Figure below , UV radiation splits the ozone molecule. The split creates an oxygen molecule (O 2 ) and an oxygen atom (O). This split releases heat that warms the stratosphere. By absorbing UV radiation, ozone also protects Earth's surface. UV radiation would harm living things without the ozone layer. Q: What is the name for the stratospheric gas layer that protects living things from uv radiation? A: | OPTIONS:
- carbon layer
- atmospheric layer
- toposphere
- ozone layer
A: ozone layer

Q: Answer the following question given this paragraph: The solubility of the majority of solid substances increases as the temperature increases. However, the effect is difficult to predict and varies widely from one solute to another. The temperature dependence of solubility can be visualized with the help of a solubility curve , a graph of the solubility vs. temperature (see Figure below ). Q: As temperature increases, the solubility of the majority of solid substances does what? A: | OPTIONS:
- stays the same
- reduces
- mutates
- increases
A: increases