The Answer is: A. The North Star
Pluto is part of the Solar System as is the Asteroid Belt and Jupiter's moon. The North Star, Polaris is about 430 Light Years away. That is, it is far enough away that light has to travel 430 years in order to reach between here and there.
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the north star
i took the k12 test
Nina studies an artificial heart model. The model has tubes that supply an electric current to the model. Nina switches on the current that provides an impulse to the heart. She observes that the heart contracts and relaxes. Compare this model with that of a human heart, and place the steps describing how blood flows through the human heart in order. signal transferred to the ventricles
the atria contract
electrical signal travels toward the heart
the ventricles contract
signal by the nodes in the atrium
signal received by the atrioventricular node
puts thows in order plz
1. electrical signal travels toward the heart
2. signal by the nodes in the atrium
3. the atria contract
4. signal received by the atrioventricular node
5. signal transferred to the ventricles
6. the ventricles contract
The central nervous system includes which of these major components
The building blocks of proteins are known as
The basic building block of a protein is called an amino acid. There are 20 amino acids in the proteins you eat and in the proteins within your body, and they link together to form large protein molecules. The variety of ways they mix and match allows for the great diversity of proteins in nature. Understanding the structure of amino acids and how they relate to the proteins they create can help you appreciate how critical these nutrients are in your diet.
Competent cells are able to take up naked DNA.
are antibiotic resistant.
can be created in the laboratory.
are able to take up naked DNA, occur naturally AND can be created in the laboratory.
Answer: Competent cells are able to take up naked DNA, they occur naturally and can be created in the laboratory
Explanation: Competent cells are cells that can modify its genetic make up and take other DNA using transfomation. Competent cells are commonky made from e.coli because it can replicate faster, readily available for use. DNA is cleavedusing restriction enzymes making up sticky ends.