Sharks differ from most other fish in that they lack a. teeth b. bone c. paired appendages d. gill slits e. scales

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.

30 points! explain the 3 differences in the chart below: flowers cones spores 1. 1. 1. 2. 2. 2. 3. 3. 3. i am not sure what the differences between them are, if someone could explain that would be

In the absence of oxygen the net gain of atp for each glucose molecule during glycolysis is approximately