Estrogen, a hormone, is released by the ovaries. once released, it travels to cells where it has an influence on sexual development. in order for estrogen to achieve its purpose, it must a. travel using a transport protein to cross the cell membrane. b. travel through the cell membrane and bind to an intracellular receptor inside. c. estrogen does not need to cross the cell membrane to get to the nucleus. d. bind to a membrane receptor on the cell's surface.

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

Clues to ecological principles are given in numerous passages of the bible. a bible study of ecology actually opens the doors to better understanding of god's love and concern for the earth. use a concordance to locate bible passages associated with words concerning our stewardship of the earth. you may use a dictionary to find synonyms for these words: dominion replenish subdue judgment stewardship find each of the passages using these words related to principles of ecology. list all passages by quote, book, chapter, and verse under each word. use your own interpretation to rewrite what you think each verse is saying. after your discussion of each of these words, ask one other person to explain his understanding of the word and a related verse without any hints. summarize what he tells you. a concluding paragraph for each of the words should be written noting similarities and differences between your interpretation and that of each person consulted.

Long term exposure to waves can cause sunburns and skin cancer.