What is the structure of a DNA molecule called?

double helix

double stranded

double braid

How do exit hermit and endothermic reactions differ?

An increase in Earth's average temperature due to the buildup of carbon dioxide and other gases in Earth's atmosphere is called A) ozone buildup. B) global warming. C) bioremediation. D) thermal pollution.

Explain ways we turn the wind energy into energy we can use.

Which habitat would have the least variation in its salinity? a. salt marsh b. mangrove forest c. lake d. estuary I don't think it's D

Amoeba paramecium and spirogyra are diverse. why then are they all classified as protists

What body system contains hemoglobin

A distinguishing characteristic that can be inherited is what

The forming and breaking of bonds in a chemical reaction always involves changes in energy what are the 2 options of what happens to that energy?

Demographic transition is the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system. A demographic transition involves four stages.

Why does the oxygen atom in a water molecule have a negtive change