How can the type of asexual reproduction bacteria reproduce quickly

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the