Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. One of his contributions was the development of a hierarchical system of classification of nature. Today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.
Answer:
The evidence suggests that these chloroplast organelles were also once free-living bacteria.
Explanation:
The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.
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Antibiotics can have side effects.
When children take antibiotics at the first sign of an ear infection, they are more likely to have vomiting, diarrhea, and allergic reactions because of the medicine. Also, antibiotics can kill “friendly” germs in the body and cause other problems like diarrhea.
Over-use of antibiotics is a problem.
Antibiotics can help drug-resistant bacteria grow. These bacteria are harder to kill. They can cause illnesses that are harder to cure and more costly to treat. This increases the risk of complications and side effects. The resistant bacteria can also infect other people.
Hope this helps
Answer:
B) Polymerases can only synthesize in the 5' to 3' direction
Explanation:
The leading strand's directionality is 3' to 5', so polymerase has no problem with replicating this one. But the lagging strand has the opposite directionality, so the polymerase must work in the opposite direction of the replication fork.In consequence, the replication process undergoes periodic breaks, and the enzymes have to stop and start again while helicase separates both strands, resulting in the polymerization of okazaki fragments.
La respuesta es C. Aurícula derecha – ventrículo derecho y aurícula izquierda – ventrículo izquierdo.
Explicación:
El corazón, órgano encargado de bombear sangre, se divide en dos secciones principales, cada una con una función. La primera es la cavidad derecha también llamada el corazón derecho, esta estructura incluye el ventrículo derecho y la aurícula derecha; además, esta sección recibe sangre no oxigenada y la bombea hacia los pulmones. Lo que es necesario para oxigenar la sangre. La segunda cavidad es la izquierda o corazón izquierdo que incluye el ventrículo y la aurícula izquierda; además, esta sección del corazón difiere de la cavidad derecha porque distribuye la sangre al resto del cuerpo.
