The diagram below shows a body of water below Earth's surface. To what does the "X" in the diagram refer?

a divide

a floodplain

a watershed

a water table

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

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

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.