Many reactions in living organisms could happen even if enzymes weren’t there. Despite this, organisms couldn’t live without enzymes. Explain why they are essential to life.

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.