Kisspeptin is a protein in humans that has an important role in initiating secretion of the releasing factor gonadotropin-releasing hormone (gnrh). endocrinologists are finding that the protein kisspeptin and its receptor are central to sexual maturation at puberty. neurons that release kisspeptin carry estrogen receptors. if this is a negative feedback system, high levels of estrogen would be expected to:

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

Describe the function of the endomembrane system? what organelles are involved?

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.