Answer:
They contain different five-carbon sugars and a different nitrogenous base.
Explanation: RNA has the sugar ribose and DNA has sugar deoxyribose
<span>The ligament is a soft, flexible supportive tissue that is replaced by bone during ossification. Most of the athletes have ligament injuries because of the four ligaments in our knees that can easily be injured. Ligaments are essential for they connect our organs.</span>
Answer:
dismissed the idea that species are constant and emphasized the importance of variation and change in populations
Explanation:
- Darwin and Wallace were the two scientists that contributed to the theory of evolution by natural selection.
- According to their ideas, the mechanisms that lead to evolution is natural selection.
- The idea for natural selection stems from the fact that the available resources are limited in nature and hence, there will be competition for survival and only the individuals that will have heritable traits that will favor their survival under such competition would be able to live and thus, produce more offsprings with similar traits and hence, this will lead to evolution.
- This theory of natural selection thus emphasized that the traits possessed by organisms are not constant but are variable and the populations constantly change over time.
Answer:
Cells typically communicate using chemical signals.
Explanation:
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