It is avantagous for animals that migrate to store energy in the form of lipids instead of carbohydrates this is becuause

Exit what always affects measurement error in an experiment? a. investigator bias b. variability in nature c. instrument precision d. misreading the instrument

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

If a cell is placed into a hypertonic environment,what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge