Answer:
Each DNA strand is composed of nucleotides—units made up of a sugar (deoxyribose), a phosphate group, and a nitrogenous base. Each strand of DNA is a polynucleotide composed of units called nucleotides. A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base. Explanation:
<span>The experimental evidence that leads </span><span>scientists to believe that only quantized electronic energy states exist in atoms </span>was the Niels Bohr experiment on Hydrogen gas. The quantized model for electron orbits in atoms that effectively explained the spectroscopic behavior of the atoms. Each line in the spectrum corresponds to one exact frequency of light emitted by the atom.
Answer is C. the limbs resemble that of the ancient lobe- finned fish but the limbs all have different uses in the bird, mammal and reptile than it does in the fish
The answer would have to be the third option "<span>Clusters and constellations." Clusters is a group of stars that is in a galaxy. Constellations is a line connected by stars to make a picture for example a kite. Galaxy's also include: planets, stars, clusters, comets, and sometimes asteroids.
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Answer:
False
Explanation:
Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances.