A scientist isolated the dna from a frog and determines that about 20% of the nitrogenous bases are thymine. which of the following should we expected her to conclude

A. 40% of the remaining bases are Adenine

B. 20% of the remaining bases are Adenine

C. 10% of the remaining bases are Guanine

D. 20% of the remaining bases are Guanine

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

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.

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation