Some featured visible in an electron microscope may not be present in the living cell because process involved in preparation alter or distort the cell content.
The most effective sort of microscopes can detect even individual atoms; these are called electron microscopes. However, because the materials are destroyed by the electrons, these microscopes cannot be utilized to observe living cells.
Instead of using light to image specimens, electron microscopes use a particle stream of electrons. Images captured with an electron microscope have resolutions between 0.2 and 10 nanometers, which is 10 to 1,000 times better than that of a conventional light microscope. Additionally, samples can be magnified with an electron microscope up to two million times, compared to 2,000 by a light microscope.
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Answer:
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Answer:
Climatic variation
Explanation:
Climatic variation lead to formation of annual rings in the activity of cambium because In climates with alternations of either cold or dry seasons, the growth cells or cambium of wood stems produced when water is available and growth is rapid are always large and have thinner walls and where the climates is dry, the growth is slower and the cambium produced short and thicker walls but where there is uniform climate, there won't be much different as the growth will be uniform.
The cambium is responsible for secondary growth of root and stem.
The answer is B: bees carry pollen to other plants
because we know that bees food is nectar which comes from flowers. Now, when bees sit on flowers, the pollen of that flower attaches to the bee's feet. Now, we also know that bees roam around different flowers, so when bees go to the other flowers, the pollen form the bees feet gets transferred to another flower which helps in reproduction.
I am guessing it could be "C" too but i don't think it is "C" because i don't think bees beatting wings produces enough force to move the air around it fast. So, i don't think that their beatting wings can scatter the pollen
