Metabolism’s purpose is to conserve food into energy. Because cells have mitochondrion, which is the powerhouse of the cells, it needs something to convert to energy.
4. organism, organs, tissues, cells
Correct answer:
A vaccine is a substance that stimulates the antibodies production and helps to provide immunity against one or more than one disease. It is made by taking a small amount of dead or whole weaned germs such as bacteria or virus that cause the disease.
When these weakened pathogens are introduced in the body they evoke the immune response inside the body and activates T- cells and B-cells inside the body, which prepare antibodies against that antigen in advance in order to save the body from infection by the same pathogen in the near future.
A vaccine introduces a weakened flu virus into the body
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The immune system identifies antigens on the weakened flu virus
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Antibodies are produced, which bind to the weakened flu virus and signal immune cells to destroy it
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The actual flu virus enters the body, and lymphocytes recognize the antigens
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Antibodies are quickly produced and allow the body to fight off the infection
Answer: i would say number one
Explanation: DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change
hope this help
Your answer would be active transport now if it was to go from high to low it would be called passive transport