Answer:
The Digestive System
Explanation:
Organs such as the stomach, esophagus, and intestines work together to break down food and nutrients.
They are genetically identical because when the cell splits into the daughter cells, it makes an exact copy of DNA chromosomes, forcing the cells to be identical.
Answer:
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Explanation:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
The Earth's surface lithosphere rides atop the asthenosphere and the two form the components of the upper mantle. The lithosphere is divided into a number of tectonic plates that are continuously being created or consumed at plate boundaries. Accretion occurs as mantle is added to the growing edges of a plate, associated with seafloor spreading. This hot added material cools down by conduction and convection of heat. .
Bacteria.
When bacteria are exposed to antibiotics, the antibiotics kill the bacteria that does not have resistance gene while the bacteria that have the resistance gene survive and produce offspring with the gene creating generations of bacteria with a resistance gene. This demonstrates that through natural selection, bacteria are evolving into antibiotic-resistant bacteria. The selective agent is the antibiotic and the main culprits are the humans.
J.A.R Newlands
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