Q: Answer the following question given this paragraph: Covalent bonds form because they give atoms a more stable arrangement of electrons. Look at the oxygen atoms in the Figure above . Alone, each oxygen atom has six valence electrons. By sharing two pairs of valence electrons, each oxygen atom has a total of eight valence electrons. This fills its outer energy level, giving it the most stable arrangement of electrons. The shared electrons are attracted to both oxygen nuclei, and this force of attraction holds the two atoms together in the oxygen molecule. Q: What do covalent bonds give atoms a more stable arrangement of? A:

OPTIONS:
- protons
- neutrons
- cell walls
- electrons

A: electrons

input: OPTIONS:
- fallopian tubes
- cervix
- vagina
- ovary Now, answer this question: Answer the following question given this paragraph: Ovulation, the release of an egg from the ovary, occurs at about the midpoint of the cycle. This would be around day 14 of a 28 day cycle. The egg is swept into the fallopian tube. If sperm is present, fertilization may occur. As sperm can only survive in the fallopian tube for up to a few days, fertilization can only occur within those few days post-ovulation. Q: Ovulation is the release of an egg from the what? A:
A:
output: ovary

Answer the following question given this paragraph: Tonicity Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three termshypotonic, isotonic, and hypertonicare used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside the cell, and water enters the cell. (In living systems, the point of reference is always the cytoplasm, so the prefix hypo- means that the extracellular fluid has a lower concentration of solutes, or a lower osmolarity, than the cell cytoplasm. ) It also means that the extracellular fluid has a higher concentration of water than does the cell. In this situation, water will follow its concentration gradient and enter the cell. This may cause an animal cell to burst, or lyse. In a hypertonic solution (the prefix hyper- refers to the extracellular fluid having a higher concentration of solutes than the cell's cytoplasm), the fluid contains less water than the cell does, such as seawater. Because the cell has a lower. Q: What describes the amount of solute in a solution? A:

OPTIONS:
- viscosity
- solubility
- frequency
- tonicity

Answer: tonicity

Problem: OPTIONS:
- ooze
- square
- plasma
- gas
Q: Answer the following question given this paragraph: Water can be a solid, liquid, or a gas. Q: Water can be a solid, liquid, and what other form? A:
Answer: gas

Problem:OPTIONS:
- tissues
- stems
- leaves
- roots

Answer the following question given this paragraph: Q: What basic structures take in nutrients from the soil and help the plant survive? A:
****
A: roots

Problem:OPTIONS:
- organs
- hemispheres
- digestive tract
- limbs

Answer the following question given this paragraph: Figure 7.2 Axial and Appendicular Skeleton The axial skeleton supports the head, neck, back, and chest and thus forms the vertical axis of the body. It consists of the skull, vertebral column (including the sacrum and coccyx), and the thoracic cage, formed by the ribs and sternum. The appendicular skeleton is made up of all bones of the upper and lower limbs. Q: The appendicular skeleton is made up of all bones of the upper and lower what? A:
****
A:
limbs