The four main macromolecules are carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates typically are used for energy production within the body, lipids are used for energy storage, proteins are typically used for structural support in things like your hair or nails, and nucleic acids are used for storing genetic material.
Organisms called <u>pathogens</u> live on or in the body of a host and cause some degree of harm.
<h3>What are pathogens, and where do they live?</h3>
These are the organism that lives inside or over the surface of our body and causes harm to us and they took nutrition from us.
The pathogen which lives inside may be in the form of some bacteria or virus.
The pathogen which causes harm to us by living on the surface of our body is called a parasite. they may reside in the form of some fungi, lice, etc.
<h3>Conclusion</h3>
These pathogens are very harmful to our body whether they live inside or on the surface of it.
Learn more about Parasite here: brainly.com/question/2280046
#SPJ4
I believe that the common features of the three is that they usually give a suggestion that brain stimulation is effective when treating severe forms of depression. These methods are usually used after other methods have been tried and failed. They involve the stimulation of the brain.
Answer/Explanation:
Onions are stem modifications of bulbs. Onions grow during a cold weather, but forms bulbs when the weather is warm. Onions can either be grown using seeds or through their bulbs. That is why, the stem modification of onions are bulbs. Tuber is from potatoes, whereas corm is from crocuses and gladioli.