The acidity is secretions produce by plant roots.
Most macromolecules are polymers of simple molecules (monomers). There is not a great variety of simple molecules, but their structure determines the macromolecule. For example, proteins are macromolecules synthesized from amino acids. There are only 20 amino acids and a great number of proteins made of different combinations of those 20 amino acids.
Earthworms, frog and squid have different respiratory systems in that such evolutionary features are in accord with their thriving environment. They differ basically in the adaptive makeup of these morphological features. For instance, frogs have lungs, squid have siphons and earthworms through their skin.
The purpose of all of these hard to keep the body structure the same
Answer: During photosynthesis, green plants uses light energy from sunlight to convert carbon dioxide and water to glucose and water. Light energy is converted to chemical energy during photosynthesis.
Explanation:
Photosynthesis is the process by which green plants uses light energy from sunlight to produce carbohydrates by converting carbon dioxide and water to carbohydrates and oxygen.