By all plants, algae, and some microorganisms
High rates of
volcanism, earthquakes, and mountain building are the sites of subduction
zones. They occur in convergent boundaries found in tectonic plates of both
oceanic and continental crusts. Subduction zones occur when one tectonic plate
moves under another tectonic plate, sinking into the mantle as the plates
converge again.
<span>
Regions that are
within subduction zones experience an average rate of convergence of 2-8
centimeters per year. They are subject to many earthquakes because of the
collisions that occur within the tectonic plates. </span>
Answer:
All of the above answer choices are correct.
Explanation:
Test cross is done to find out the genotype of an individual displaying dominant phenotype as it can be homozygous or heterozygous. To find this the individual is crossed with a recessive phenotype individual. For example: a dominant trait tall height can be homozygous TT or heterozygous Tt. If it is TT all the offspring of test cross with tt will be tall. If it is Tt half of the offspring will be tall and half of the offspring will be short.
Multiple offspring are required to come to the final result because offspring production happens in random order and it might take a few tries before another type of phenotype is produced. For example: If a test cross produces an individual with dominant phenotype we can still not surely say if the test individual is homozygous or heterozygous because both can produce dominant phenotype in test cross. We need more offspring to check if the recessive phenotype is produced or not and accordingly decide the genotype of test individual.
Hence all of the above answer choices are correct.
<span>Thymine is harder to make, but more stable. DNA needs to keep information safe for a long time, so it makes sense to use thymine. But RNA is made and used quickly, and small mistakes don’t matter as much, so the easier to make uracil does the job.</span>
