Which two statements are MAIN ideas of the article?

1. Zero waste is the idea that everything gets reused and nothing is thrown away.

2. Plants and animals use each other's waste as part of nature's zero waste processes.

3. More zero waste programs for people and businesses can help conserve resources.

4. The Zero Waste Institute was founded by a chemist named Paul Palmer in the 1970s.

Name the organs of humanelemintary canal.

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.

How many copies of genes do gametes have?