Answer:
Experimentos de índole descriptiva han demostrado que diferentes tipos de virus no pueden desplazarse por aire, con lo cual estas estrategias resultan efectivas para evitar su esparcimiento en la población
Explanation:
El distanciamiento social y el uso de barbijos son herramientas útiles para combatir la propagación de muchos virus, especialmente aquellos con un alto indice de infección, como es el caso del nuevo Coronavirus Sars-Cov-2 el cual está asociado a un síndrome respiratorio agudo que puede incluso llevar a la muerte del individuo. Sars-Cov-2 es un virus muy peligroso porque todavía no contamos con un tratamiento efectivo tal como, por ejemplo, una vacuna que permita generar una respuesta inmunológica permanente contra el virus. De este modo, es imprescindible evitar la propagación del virus hasta que la comunidad científica pueda desarrollar un tratamiento efectivo.
Answer:
Unlike a wild guess, a hypothesis is based on observations and it must be testable.
Explanation:
Answer:
Predator foraging traits include;
- body size (mass or length),
- gape size,
- hunting or foraging mode (for example, ambush or active hunting), and
- feeding mode (for example, chewing or suctorial) .
Prey vulnerability traits include;
- body size (length and mass),
- body shape,
- defense (for example, physical or chemical protection),
- ability to avoid detection (crypsis or camouflage),
- mobility,
- ability to recognize and detect predators, and
- evasive or escape behavior (which can be elicited by physiological trait responses.
But whether or not predators engage with prey, or prey respond to predators in the first place, depends fundamentally on their relative body sizes (or predator gape and prey body shape). Pursuing prey that are too large or cumbersome can be harmful or energetically costly to predators, and pursuing prey that are too small may not be worth the energetic return.
As these populations continue to reproduce over time, the actions of natural selection can also change the species to make them better predators, or more defensive prey. Either way, this adaptation changes the entire predator prey dynamic. If one species cannot then adapt an appropriate defense, they may go extinct.
Explanation:
Hope it helps.
Answer:
Virulence, the capacity to cause disease, varies markedly among viruses. Some viruses cause lethal disease while others do not. For example, nearly all humans infected with rabies virus develop a disease of the central nervous system which ultimately leads to death. In contrast, most humans are infected with circoviruses with no apparent consequence.
Explanation: One explanation for viral virulence is that it facilitates transmission. However, a comparison of infections caused by two enteric viruses, poliovirus and norovirus, does not support this general view. Both viruses infect the gastrointestinal tract and are spread efficiently among humans by fecal contamination.
