Fact 1: Energy enters ecosystems in the form of sunlight or chemical compounds.  Fact 2: Biomes are global ecosystems.  Given the two facts above, energy enters what in the form of sunlight or chemical compounds.?

Answer: biomes


Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.  Fact 2: Acid rain is harmful rain.  Given the two facts above, what are gases from burning coal and oil dissolving in water in the atmosphere?

Answer: harmful


Fact 1: Invertebrates are animals that lack a vertebral column, or backbone.  Fact 2: Invertebrates Among the invertebrates, the largest number of species are insects.  Given the two facts above, what animals lack vertebral column or backbone?

Answer: insects


Fact 1: Viruses cannot reproduce by themselves.  Fact 2: Often viruses are the cause of myocarditis.  Given the two facts above, the cause of myocarditis cannot what?

Answer:
reproduce by themselves