The movement of oxygen molecules over time from one side of the semipermeable membrane to the other side is known as a) osmosis. b) diffusion. c) plasmolysis. d) active transport.

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

According to this food web which of the following would be considered primary consumers