5. What would be the consequence of an ecosystem that had no nitrogen-fixing bacteria? (1 point) O Nitrogen from decomposing animals would never be returned to the soil. O Decomposers would not be able to break down the nitrogen present in plants they feed on. O Plants would have to rely on biologically available nitrogen present in the soil. O Consumers would not survive since they would have no way to obtain the nitrogen they need.​

Match each organ or function with its body system. produces urine large intestine ureters mouth filters blood absorbs nutrients from food

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere