Which of the following items are biodegradable?
dirt
twigs and branches
grass clippings or leaves
food garbage (such as banana peels and apple cores)
plastic cup
newspaper
aluminum foil
tissues
paper towels
tin can

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

If a baby girl guinea pig looks almost identical to its mother, does this then mean that it inherited more alleles from its mother? explain. (hint: think about the vocabulary words dominant and recessive.)

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.