Answer:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange.
Answer:
“Stromatolites are pervasive in the fossil record and are some of our earliest examples of life on Earth,” he says. “The microbial mats that created them were predominantly made up of cyanobacteria, which used photosynthesis – like plants do – to turn sunlight into energy while producing so much oxygen over time they changed the early Earth’s atmosphere to make it habitable for complex life.
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Answer:
osmosis is responsible for the ability of plants roots to draw water from the soil.
Explanation: osmosis is simpliy the ability of a water to pass thourgh a semipermiable membrane from a region of low concentration to a regin of high concentration, so plants concentrates solutes in their root cells by active transport and water enters the roots though osmosis. Osmosis is also responsible for movement of gurd cells.
