What are the characteristics of an indicator species

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

What molecule does hemoglobin decay into over time