Which of these is incorrect? a. most extracellular signal molecules specifically bind to a single type of receptorb. for a given signaling molecule, every cell will have the receptor for that moleculec. different cell types may respond to the same signal molecule in different waysd. cell "relay" systems for signaling can cause more than a single cell responsee. cells may respond to multiple, different signals that converge and integrate with each other.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

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

Match the following terms and definitions. the transformation of a larva to an adult; occurs only in animals having great differences in form between the larva and adult pupa 2. type of mammal that lays eggs monotreme nymph the part of certain insect life cycles in which the young animal has no wings or reproductive organs the developmental stage between larva and adult in insects undergoing metamorphosis metamorphosis 5. the male gonad which produces sperm testes