Troy's weight has always been around 180 pounds. when he gains a few pounds, he usually drops the extra weight relatively quickly but rarely drops below 180. troy's ability to maintain a "standard" weight exemplifies which theory?

What is the most appropriate method of gaining weight (muscle mass)

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere

Thyroid-stimulating hormone stimulates the thyroid gland to secrete sex hormones. true or false