Co- dominant traits are when the mother and father both have dominant alleles. One of the example is when a dog has both white and black fur maybe with spots, that’s when both parent alleles are dominant. Another’s one is when a human has two different eye colors (very common). Again the allele for the eye color from the parent genes are both dominant and the zygote inherits both.
A: We say that it takes 500 to thousands of years to create an inch of topsoil. The reason is that soil is often derived from rock. The rock has to be broken into small pieces first. This happens by physical weathering: things like freezing and thawing in colder climates, and chemical weathering in warmer climates.
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This really easy taking antibiotics too often or for the wrong reasons can change bacteria so much that antibiotics don't work against them. This is called bacterial resistance or antibiotic resistance. Some bacteria are now resistant to even the most powerful antibiotics :D hope it helps
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