Which of the following is an organic molecule?
salt
carbon dioxide
lipid
water

Lipid

Explanation:

The four organic molecules are:

Carbohydrates - Carbs are bread, cereal, pasta, rice and sweet foods some examples of carbohydrates. Carbs give you energy. There are 2 types of carbs: Sugar and Starches which your body breaks down into a simple form of sugar called glucose. (Carbs have carbon, hydrogen and Oxygen)

Protein - Meat, fish, eggs, beans and milk are foods that have a lot of protein. Protein builds up and repairs the body's cells. In fact, the organs and muscles are almost fully protein. (Protein is made up of amino acid)

Nucleic Acids - are the most important macromolecules for the continuing of life. They carry genetic blueprints of a cell and carry those instructions to the brain so they can function the cells. Cereals, mushrooms, and spinach are some nucleic acids (NCs are a long chain of components such as DNA and RNA).

Lipids - Food with Lipids are canola, corn, olive and peanut oil. Lipids are important to our health. The body uses lipids to store energy, along with instruction and to make cell membrane. (Lipids include lots of fats + waxes.)

So, Lipids is the correct answer, but to back it up, lets look at the other choices.

Sugar, starches and oils are made of organic molecules.

Water, battery acid and table salt are inorganic. So, It is not salt.

So, Is carbon dioxide and organic molecule?

No. Compounds such as carbon dioxide and sodium carbonate are considered to be inorganic.

how about water?

Inorganic substances usually don't have a carbon atom, when organic substances contain more than 1.

Therefore the only correct answer would be the lipids.

Hope this helped! Please mark me brainliest and have a great day!

"do a testcross with a homozygous recessive plant."

a- all cells come from pre-existing cells