Which change would create a new ecosystem? an introduced species

a dam flooding a valley

a lake freezing over

a yearly migration

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change.

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.

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.