Q: Answer the following question given this paragraph: Acne Acne is a skin disturbance that typically occurs on areas of the skin that are rich in sebaceous glands (face and back). It is most common along with the onset of puberty due to associated hormonal changes, but can also occur in infants and continue into adulthood. Hormones, such as androgens, stimulate the release of sebum. An overproduction and accumulation of sebum along with keratin can block hair follicles. This plug is initially white. The sebum, when oxidized by exposure to air, turns black. Acne results from infection by acne-causing bacteria (Propionibacterium and Staphylococcus), which can lead to redness and potential scarring due to the natural wound healing process (Figure 5.22). Q: Acne is a skin disturbance that typically occurs on areas of the skin that are rich in sebaceous glands (face and back). it is most common along with the onset of puberty due to association with these? A:

OPTIONS:
- mental changes
- digestive changes
- thermal changes
- hormonal changes

A: hormonal changes

input: OPTIONS:
- endocytosis
- isolation
- morphogenesis
- exocytosis Now, answer this question: Answer the following question given this paragraph: Q: What is the process called when secretory cells export products? A:
A:
output: exocytosis

Answer the following question given this paragraph: Air pollution is harmful to human beings and other living things. About 22 million people die from air pollution each year. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution. That's because their lungs are still developing and growing. Children also take in more air for their size than adults do. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant. Air pollution can also harm the environment. Q: How many people die from air pollution each year? A:

OPTIONS:
- 14 million
- 17 million
- 5 million
- 22 million

Answer: 22 million

Problem: OPTIONS:
- monocytes
- white blood cells
- plateletes
- red blood cells
Q: Answer the following question given this paragraph: Composition of Blood You have probably had blood drawn from a superficial vein in your arm, which was then sent to a lab for analysis. Some of the most common blood testsfor instance, those measuring lipid or glucose levels in plasmadetermine which substances are present within blood and in what quantities. Other blood tests check for the composition of the blood itself, including the quantities and types of formed elements. One such test, called a hematocrit, measures the percentage of RBCs, clinically known as erythrocytes, in a blood sample. It is performed by spinning the blood sample in a specialized centrifuge, a process that causes the heavier elements suspended within the blood sample to separate from the lightweight, liquid plasma (Figure 18.2). Because the heaviest elements in blood are the erythrocytes, these settle at the very bottom of the hematocrit tube. Located above the erythrocytes is a pale, thin layer composed of the remaining formed elements of blood. These are the WBCs, clinically known as leukocytes, and the platelets, cell fragments also called thrombocytes. This layer is referred to as the buffy coat because of its color; it normally constitutes less than 1 percent of a blood sample. Above the buffy coat is the blood plasma, normally a pale, strawcolored fluid, which constitutes the remainder of the sample. The volume of erythrocytes after centrifugation is also commonly referred to as packed cell volume (PCV). In normal blood, about 45 percent of a sample is erythrocytes. The hematocrit of any one sample can vary significantly, however, about 3650 percent, according to gender and other factors. Normal hematocrit values for females range from 37 to 47, with a mean value of 41; for males, hematocrit ranges from 42 to 52, with a mean of 47. The percentage of other formed elements, the WBCs and platelets, is extremely small so it is not normally considered with the hematocrit. So the mean plasma percentage is the percent of blood that is not erythrocytes: for females, it is... Q: Normal blood is comprised of nearly half erythrocytes, which is another word for what cells? A:
Answer: red blood cells

Problem:OPTIONS:
- erosion
- evaporation
- sediment
- precipitation

Answer the following question given this paragraph: Some precipitation that falls on land soaks into the ground. This water becomes groundwater. Groundwater may seep out of the ground at a spring or into a body of water such as the ocean. Some groundwater is taken up by plant roots. Some may flow deeper underground to an aquifer. An aquifer is an underground layer of rock that stores water. Water may be stored in an aquifer for thousands of years. Q: Where does groundwater primarily come from? A:
****
A: precipitation

Problem:OPTIONS:
- water - combining cells
- water - raising cells
- water-phobic cells
- water-conducting cells

Answer the following question given this paragraph: Q: How does water from roots reach the leaves? A:
****
A:
water-conducting cells