Explanation:
Larger lenses are heavier, and tend to sag under their own weight, ruining the image quality as the lenses distort. The long mounting tubes are hard to make mechanically stiff, and so they tend to flex under the weight of the lens, making it hard to keep the optics in alignment.
The correct answers for this question is this one:
<span>1) They photosynthesize. They are morphologically similar to plants.
2) Blue green algae (cyanobacteria) lack a nucleus. They do not have organelles, and are unicellular. They also have a gram negative cell wall, just like many bacteria.
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Answer:
C.Astroids and meteoroids
Cows are consumers because they do not make their own food from the sun, they must eat other organisms (grass).
autotrophs automatically make their own food, so they are producers.
