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egoroff_w [7]
4 years ago
9

The sun is wonderful source of energy. It is renewable and natural with few dangers. Solar cells rely on the sun for energy. The

se cells would be more practical to use if they were ________.
A) larger
B) Nonrenewable
C) Pollution-free
D) less expensive
Biology
2 answers:
igor_vitrenko [27]4 years ago
6 0
B:nonrenewable i think
MrRissso [65]4 years ago
3 0
I just took the test and the answer is actually D) Because Solar cells transform radiant energy from the sun into electrical energy. It is more expensive, however, than the transformation of thermal energy into electrical energy by combustion. Therefore, solar cells would be more practical if they were LESS EXPENSIVE<span><span>. </span></span>
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Explain how a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction
valkas [14]

Answer:

As a result of a change in the sequence of nucleotides in a strand of DNA (Deoxyribonucleic acid), the amino acids also change in the final protein which leads to protein malfunction.

Explanation:

As a result of a change in the sequence of nucleotides in a strand of DNA (Deoxyribonucleic acid), the amino acids also change in the final protein which leads to protein malfunction. If insulin does not work correctly, it may not be able to bind to the insulin receptor.

DNA contains genetic information. It has a double helix structure.

5 0
3 years ago
I observe that squirrels that live in the southeastern United States are much thinner than squirrels that live in the northeaste
stiv31 [10]

Answer:

No, it is not a scientific theory.

Explanation:

  • A scientific theory is a proposition that is made to explain the various phenomena that are occurring in nature and it is supported by experiments that have repeatability and well-analyzed results.
  • Scientific theories are usually tested in experiments under controlled conditions and verified as well.
  • In the given situation, the theory made by the observer is not being tested through any experimentation or quantification and therefore, it is just a hypothesis and not a scientific theory.

6 0
3 years ago
What is:<br><br>-Biology <br>-Chemistry <br>-Physics​
den301095 [7]
Biology is a branch of science that deals with living organisms and their vital processes.

Chemistry is the science that deals with the properties, composition, and structure of substances

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5 0
3 years ago
A luminosidade da estrada deve depender da constelação na qual está
Sveta_85 [38]

Answer:

....................

6 0
3 years ago
Suggest appropriate sources of food to meet their requirements for a Newborn baby and child aged 6.
pashok25 [27]

Explanation:

Calcium . Helps build strong bones and teeth.

Fat. Creates energy, helps the brain develop, keeps skin and hair healthy, and protects against infections.

Folate. Helps cells divide.

Iron. Builds blood cells, and helps the brain develop. Breast-fed babies should receive iron supplements.

Protein and carbohydrates. They provide energy and fuel growth.

Zinc. Helps the cells grow and repair themselves

Your baby also needs vitamins such as:

Vitamin A. Keeps skin, hair, vision, and the immune system healthy.

Vitamin B1 (thiamine). Helps the body turn food into energy.

Vitamin B2 (riboflavin). Helps the body turn food into energy, and protects cells from damage.

Vitamin B3 (niacin). Helps the body turn food into energy and use fats and protein.

Vitamin B6. Keeps the brain and immune system healthy.

Vitamin B12. Keeps nerve and blood cells healthy, and makes DNA -- the genetic material in every cell.

Vitamin C. Protects against infections, builds bones and muscles, and helps wounds heal.

Vitamin D. Helps the body absorb calcium from food, and keeps bones and teeth healthy. Breast-fed babies may need a D supplement.

Vitamin E. Protects cells from damage, and strengthens the immune system.

Vitamin K. Helps the blood to clot.

hope this was helpful

8 0
3 years ago
Read 2 more answers
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