El objetivo es la lente que concentra la luz procedente del objeto en un microscopio. Los dos criterios utilizados para clasificar las lentes objetivo son el aumento y la apertura numérica.
- El aumento de una lente objetivo refiere a la magnificación del objeto cuando este es observado con el microscopio.
- Una lente objetivo puede tener un aumento de 4X (tamaño magnificado cuatro veces), 10X, 40X o 100X.
- Por otra parte, la apertura numérica expresa la capacidad que una lente objetivo tiene para resolver detalles en el objeto que se está observando bajo el microscopio.
- Para las lentes del microscopio óptico, la apertura numérica ronda los valores de 0.10 a 1.25, lo cual corresponde a longitudes focales de 40 milímetros (mm) a 2 mm, respectivamente.
Aprende más sobre este tema en:
brainly.com/question/19129705?referrer=searchResults
Answer:
C. By causing auxin to migrate in to the shaded portion
Explanation:
Auxin is the most important plant hormone involved in the apical growth of plant parts. Auxin is evenly distributed in a plant with a normal light condition, however, when a particular part of a plant is exposed to sunlight, that illuminated part contains less auxin. The hormone is transported to the shady part of the plant via diffusion.
This causes more auxin to be present in the shady part than the illuminated part, hence, the shady part experiences a faster and elongated growth. This elongated growth in the shaded portion of the plant causes it to grow towards the direction of the light, a process called PHOTOTROPISM.
Answer:
A. consist of protein molecules embedded in a fluid bilayer of phospholipid
Explanation:
Answer:
Biological
Explanation:
The biological species concept differentiates one species from the others on the basis of reproductive isolation. It assumes that the two organisms that belong to different species can not interbreed to produce a viable and fertile progeny. On the other hand, the members of the same species can reproduce with each other to produce progeny. In the given example, the populations of damselflies are observed for their reproductive behavior. Since the flies of all the populations are able to breed with each other, they belong to the same biological species.