Concept 19 The DNA molecule<span> is shaped like a twisted ladder. James Watson and Francis Crick solved the structure of DNA. Other scientists, like Rosalind Franklin and Maurice Wilkins, also contributed to this discovery.</span>
1. <span>a. messenger RNA (mRNA)
2. </span><span>c. they have different sugars
3. </span><span>a. uracil
Hope this helps!</span>
Saliva is a part of the digestive system. saliva contains enzymes that help start the breakdown of food in the digestive process
Answer: When the weather is hot or your body temperature rises due to exercise or fever, sweat is released through ducts in your skin. It moistens the surface of your body and cools you down as it evaporates.
Explanation:
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The answer for the above question is Natural selection.
According to natural selection organisms or individuals that are better adapted to their environment are more likely to survive and reproduce passing their traits on to their offspring, while those that are less adapted tend to be eliminated fro the ecosystem.. Diversity is the different species of organisms in the same area.
