Answer:
Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules.
Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.
Explanation:
The dorsal horn of the spinal cord contains cell bodies of somatic motor neurons. there are two kinds of horns found in the spinal cord: <span>dorsal horns are described as mainly sensory, while on the other hand, those in the ventral horns are are motor in majority. Answer is C.</span>
Answer:
Noble gases are likely to be least reactive, because they have complete octet in their valence shell.
Halogens are likely to be most reactive, because they want only one electron to complete its octet in their valence shell.
A: Skin. heart is a organ but it's sorta small. Same with liver. Skeleton is not a organ
Answer: B. Low pressure
Explanation: Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward towards these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms.
