Ok I think its small polar molecules but I could be wrong.
nuclear envelope contains a double membrane in order to protect the nucleus.
Answer:
A novel GPCR role in regulating cell density sensing. Homeostasis modulation (e.g., water balance). Involved in growth and metastasis of some types of tumors. Used in the endocrine system for peptide and amino-acid derivative hormones that bind to GCPRs on the cell membrane of a target cell.
Answer:
i think B.
Explanation:
That destroys a habitat for many species