Homologous chromosomes are chromosome pairs. They are<span> alike each other in size and centromere position. The position of the genes on each chromosome is the same, but the genes do not necessarily have the same alleles within.
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It is very dark down there, it is so deep that it makes it hard for scientists to be able to survive down there, & there is not really any ready to use equipment since we don't know how it is down there.
The energy of the ecosystem can be best described as option C. The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat.