Which is a better source of water vapor, landmasses or oceans?

When organisms are classified ,they are given a two part name

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .