input: OPTIONS:
- hydrophillic head , and adhesion tails
- hydrophillic head , and substrate tails
- hemophillic head, and substrate tails
- hydrophillic head , and hydrophobic tails Now, answer this question: Answer the following question given this paragraph: Figure 5.3 This phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. The hydrophilic head group consists of a phosphate-containing group attached to a glycerol molecule. The hydrophobic tails, each containing either a saturated or an unsaturated fatty acid, are long hydrocarbon chains. Q: What two things are a phospholipid molecules composed of? A:
A:
output: hydrophillic head , and hydrophobic tails

Answer the following question given this paragraph: Pollutants in surface water can filter into the ground and enter a groundwater aquifer. Irrigation water can bring pesticides and other chemicals. Water can seep through landfills. Tanks of gasoline stored underground can leak. Q: Pollutants in surface water can filter into the ground and enter a what? A:

OPTIONS:
- hydro plant
- turbine
- combustion aquifer
- groundwater aquifer

Answer: groundwater aquifer

Problem: OPTIONS:
- 25
- 24
- 13
- 23
Q: Answer the following question given this paragraph: Human cells have 23 pairs of chromosomes, and each chromosome within a pair is called a homologous chromosome . For each of the 23 chromosome pairs, you received one chromosome from your father and one chromosome from your mother. Alleles are alternate forms of genes found on chromosomes. Homologous chromosomes have the same genes, though they may have different alleles. So, though homologous chromosomes are very similar, they are not identical. The homologous chromosomes are separated when gametes are formed. Therefore, gametes have only 23 chromosomes, not 23 pairs. Q: How many pairs of chromosomes are found in human cells? A:
Answer: 23

Problem:OPTIONS:
- hydrogen
- neon
- oxygen
- carbon

Answer the following question given this paragraph: The cell is the basic unit of life. A cell is made of molecules, which are made of elements. All life-which means all bacteria and archaea, all protists, fungi, plants and animals-is built around the element carbon, and four categories of organic compounds: carbohydrates, lipids, proteins, and nucleic acids. These molecules come together to form a cell, which is the basis of life. One particular type of protein, enzymes, are biological catalysts, allowing biochemical reactions to proceed at the rate necessary to maintain life. One other molecule, water, is also essential to life, though water is not an organic compound. Q: What element is all life built around? A:
****
A: carbon

Answer the following question given this paragraph: Q: Dessication is an extreme and usually fatal form of what in animals? A:
OPTIONS:
- diarrhea
- depletion
- starvation
- dehydration
dehydration

Answer the following question given this paragraph: Neural Regulation The nervous system plays a critical role in the regulation of vascular homeostasis. The primary regulatory sites include the cardiovascular centers in the brain that control both cardiac and vascular functions. In addition, more generalized neural responses from the limbic system and the autonomic nervous system are factors. Q: What system plays a critical role in the regulation of vascular homeostasis? A:
OPTIONS:
- endocrine system
- circulatory system
- renal system
- nervous system

Answer:
nervous system