The brain and spinal cord work together so the body can receive signals and react to the environment. What is the spinal cord? A) a cell B) a tissue C) an organ D) and organ system

Which resource does not need to be cycled by ecosystem because a continuous, unlimited supply is available

What is the "fishapod" Tiktaalik

4. removes excess water, salts, uric acids, and chemicals from the blood pulmonary circulation

which is a true fact about two rocks belonging to the same age one containing fossils of an amphibian and the others containing fossils of mosses

The layers of the earth are described by the composition but not their mechanical properties?

What makes a molecule a saturated fat?

Muscles or nerves or hormones control (s) the functioning of organs

How are Australia's fires relevant to today's vocabulary word "Succession"?

Water moves between the ocean, atmosphere, and land. In which form does water enter the atmosphere?

Suppose you use a microscope to look at a cell from the leaf of a tree. What structure will you see that would not be found in a cell from your fingernail? A. mitochondria B. cilia C. cell wall D. ribosomes