*Question*
Answer the following question given this paragraph: Living organisms obtain chemical energy in one of two ways. Q: In how many ways ca a living organism obtain chemical energy Choices: - three - seven - four - two A:
**Answer**
two

*Question*
Answer the following question given this paragraph: Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. The difference in the concentrations of the molecules in the two areas is called the concentration gradient . Diffusion will continue until this gradient has been eliminated. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient. " The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of the membrane. Q: What is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration? Choices: - absorption - condensation - secretion - diffusion A:
**Answer**
diffusion

*Question*
Answer the following question given this paragraph: Sexual reproduction occurs in a cycle. Diploid parents produce haploid gametes that unite and develop into diploid adults, which repeat the cycle. This series of life stages and events that a sexually reproducing organism goes through is called its life cycle . Sexually reproducing organisms can have different types of life cycles. Three are represented in Figure below and described following sections. Q: What is the term for the series of life stages and events that a sexually reproducing organism goes through? Choices: - society cycle - existence - age - life cycle A:
**Answer**
life cycle

*Question*
Answer the following question given this paragraph: In a pedigree, squares symbolize males, and circles represent females. A horizontal line joining a male and female indicates that the couple had offspring. Vertical lines indicate offspring which are listed left to right, in order of birth. Shading of the circle or square indicates an individual who has the trait being traced. The inheritance of the recessive trait is being traced. A is the dominant allele and a is recessive. An "affected" individual has the trait or characteristic (or disease) in question. Q: In a pedigree what shape symbolizes males? Choices: - spheres - rectangles - triangles - squares A:
**Answer**
squares