Answer:
B. An egg cell and a sperm cell unite.
Explanation:
Answer:
The product that must be produced to kill a bacterium —which causes a disease— is an antibiotic, which through biotechnology can investigate the structure of the bacterium and synthesize the chemical formula needed to produce antibiotics in high amounts.
Explanation:
Antibiotics are specific medicines for the treatment of infectious diseases, produced by bacteria. <u>Antibiotics can kill bacteria and prevent their replication</u>.
If a disease is produced by bacteria, the product that is necessary to kill those microbes is an antibiotic, for which biotechnology is useful.
By using biotechnology —a branch of biology that uses technology as a research and development tool— it is possible:
- <em>Know the structure, functions and behavior of pathogenic bacterial strains.
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- <em>Create chemical formulas -antibiotics- that serve to effectively eliminate bacteria, and cure infectious diseases.
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- <em>The synthesis and production of antibiotics on a large scale, allowing their sufficient availability for use.</em>
Answer:
1) Hunger, savor, appetite. Three main biological reasons why we eat. Also, the economic ability to pay for the food. And the fisical capability to go and buy food, to cook.
2) Our physiological needs are the main reason why we choose food. People need energy to survive.
Everyone would like to have the possibility to eat what he wants. But food choices depend on the financial situation, social class, and preferences.
That is why poor people or people who have less money to spend on food, often eat food that can feed more people but it doesn’t have nutritional values. When people have money, they immediately have a wider spectrum of groceries that can choose from.
Explanation:
Savour is equal to enjoying. When people are not hungry they are happier. We choose what to eat depending on the look, taste, smell, texture. As sweets smell good, people consider them the most attractive food. Food is not just the source of nutrition, it is also the source of satisfaction.
<span>A. Restriction enzymes would be used to cut the DNA into smaller pieces. The first step in DNA manipulation for genetic engineering is </span>to choose the piece of DNA from a source. Restriction enzymes are used in cutting these DNA pieces.
Natural Selection helps animals survive in their habitats and they have adaptations to help them survive better.
