What can you summarize from labeled image the genotype is heterozygous

There are six elements that make up most of the human body. which of the following is not one of these six elements?

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart