During stage i of development, a human embryo, a bat embryo, and a chicken embryo look strikingly similar. what theory does this support?

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

Anton created a chart listing different types of materials. which best complete the chart?