Answer:
When Swedish botanist Carolus Linnaeus was formulating his system of taxonomy to name and categorize organisms in the 1700s, how the species looked was the determining factor of the group in which the species was placed. As time passed and technology advanced, homologous structures became more important in deciding the final placement on the phylogenetic tree of life.
Linnaeus's taxonomy system places species into broad categories. The major categories from general to specific are kingdom, phylum, class, order, family, genus, and species. As technology evolved, allowing scientists to study life at the genetic level, these categories have been updated to include domain, the broadest category in the taxonomic hierarchy. Organisms are grouped primarily according to differences in ribosomal RNA structure.
Explanation:
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Answer:
ATP consists of an adenosine molecule
bonded to three phophate groups in a row.
In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP.
This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a third phosphate group, becoming a molecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy.
Explanation:
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3 elements: calcium, carbon, and oxygen
Answer:
They have homologous structures because they have a common ancestor.
Explanation:
