Which statements accurately describe the evidence that scientists gather using fossils? check all that apply.
-the fossil record can be used to date rocks.
-living things with many cells have always lived on earth.
-simple organisms are found only in young rocks.
-geologists study ancient remains of plants and animals.
-scientists can figure out what ancient living things ate.
-pollen and seeds provide clues about ancient climates.

Give an example of a trait that is controlled by more than one gene.

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.

The smallest parts of these that retain their original properties are called