Which is a complete sentence? a. beavers building dams and heron searching for fish. b. the most important sites for seabirds. c. there are over five hundred kinds of wildflowers. d. long, lazy days of bird watching.

Mason joined the water polo team at his school. as part of his conditioning, mason's coach requires a 25-minute run during practice. mason's heart rate reaches 125 beats per minute, but his target heart rate zone is 138—183 beats per minute. what should mason do to get the most benefit for his heart? increase the amount of time he runs increase the speed at which he runs decrease the amount of time he runs decrease the speed at which he runs