... This was genetically passed on through generations. This was passed through genes. The ancestors were immune, therefore, they are also immune.
It begins with cells, tissues, organs, organ system to organism. There are 11 organ systems that work collectively for an organism to function. Each organ is responsible for a different function and has its own structure. The organism system that consist of the body's outer covering is the integumentary system. It consist of skin, hair, nails, and endocrine glands; they are the protectors of the body. The environment such as UV rays are harmful and the skin, hair, nails, etc protect the body as needed.
Answer:
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Explanation:
my teacher didn't teach me that topic yet
A catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.
<h3>What is the activation energy?</h3>
The activation energy of a reaction is the amount of energy required to carry out a chemical reaction.
Proteins are biological catalysts that speed up chemical reactions by lowering their activation energy.
In conclusion, a catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.
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