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Montano1993 [528]
3 years ago
9

Hurry i’ll give you 50 point Part A: Define the Problem

Biology
1 answer:
laila [671]3 years ago
5 0

Answer:

Despite the availability of cleaner energy sources, most of the energy used to power American homes comes from the

burning of fossil fuels such as coal and oil. The burning of fossil fuels releases carbon dioxide into the air. Carbon dioxide

is a greenhouse gas that contributes to climate change.

Why do you think it's a challenge to reduce fossil fuel usage in homes in the United States? How could the use of fossil

fuels affect the biodiversity in neighborhoods and the surrounding ecosystems?

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Part B: Conduct Background Research

Research is the first step in engin

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How does the development of cell theory serve as an example for the development of scientific theories in general?
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The development of cell theory serves to show the rigorous activities that must be accomplished before a theory can be developed. A scientific theory is a tested and acceptable explanation for a particular observation. A scientific theory usually started as an observation. The observation is use to formulate an hypothesis which is then tested by carrying out an appropriate experiment. If the experiment confirms the hypothesis to be true, then other scientists from different parts of the world will carry out their own experiments in order to confirm the result of the experiment.
When the result of the experiment has been tested continuously for a long time and find to be true, then it becomes a theory. This is the chains of activities which the observations made in cells undergo before it becomes cell theory.
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Answer: Cell division or mitosis is a nuclear cell division that results to two daughter cells having the same genetic code as the parent cell. The division starts at the nucleus. The chromosomes divide into two and a spindle is formed at middle of the cell. The spindle shortens and breaks resulting to two daughter cells.

Explanation:

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What is a major problem with using foreign cells grown in culture for transplantation in humans?
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The major problem with using foreign cells grown in culture for transplantation in humans is the host immune system would destroy such cells.

The body of your child is shielded from external invaders by the immune system. These include poisons, bacteria, viruses, fungus, and other types of germs (chemicals made by microbes). The various organs, cells, and proteins that make up the immune system cooperate with one another. Infections like measles, mono (mononucleosis), and the flu virus can also temporarily impair immunity. Additionally, unhealthy eating habits, alcoholism, and smoking might impair your immune system.

Antigens, which are proteins on the surface of the invading cells, are used by the immune system to identify invaders. Every substance or cell has a unique set of antigens, and every person's cells include "self-antigens" that are particular to that person.

To know more about immune system refer to:  brainly.com/question/15975169

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