Veins transport blood.

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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

Types of scientific inquiry that biologist engage in that cannot be completely controlled

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million