A hydrometer is an instrument that measures the specific gravity (relative density) of liquids. The ratio of the density of the liquid to the density of water. A hydrometer is usually made of glass, and consists of a cylindrical stem and a bulb weighted with mercury or lead shot to make it float
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The answer is D. Double Helix
The correct answer is Includes the Golgi apparatus and the endoplasmic reticulum.
The endomembrane systemrepresents a group of membranes and organelles that works together to modify, package, and transport lipids and proteins. It exists in eukaryotic cells only. The endomembrane system does not include all the organelles, like mitochondria, chloroplasts, or peroxisomes.
An increase in insulating atmospheric gasses (e.g. carbon dioxide)