Breeders can use a Punnett square, such as the one below, to predict the outcome of a genetic cross.
If the genotype of both parents was Aa, what would be expected of the genotypes among their possible offspring?
Half would have the genotype AA.
Half would have the genotype Aa.
Three-quarters would have the genotype aa.
Three-quarters would have the genotype Aa.

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.