Answer:
When granite is subjected to intense heat and pressure, it changes into a metamorphic rock called gneiss. Slate is another common metamorphic rock that forms from shale. Limestone, a sedimentary rock, will change into the metamorphic rock marble if the right conditions are met.
Natural Selection is a process in which certain traits become more common or not. This is determined by the necessity of certain traits and the environment the species finds itself in. Natural selection only acts on existing traits because they are the traits active in a given species in a given environment.
<u>Evolution is sometimes a controversial:</u>
Evolution is the most scientific explanation about how the life forms of earth originated and turned into the form that we see today.
I don’t think there should be a controversy because there is no other explanation that proves to be more logical than the theory of evolution. Evolution is a theory that has several supporting proofs and the theory itself was formed after several years of detailed study and observation.
I don’t think alternatives to evolution should be taught at schools. Alternative theories to evolution are based on various religious beliefs which lack a scientific basis.
Schools should be a place that enables students to do productive scientific thinking and teaching alternatives to evolution wouldn’t be a good idea.
Answer:
Explanation:
Since the offsprings all exhibited purple phenotypic characteristics, It shows that in the gene coding for colour in the flower of the pea plant, the allele for purple colour is dominant over the allele for white colour.
It further shows, according to the law segregation, that the gametes produced by the purple and white peas are dominant and recessive respectively. This Indicates that the parent purple-flowered pea is homozygous dominant (PP) while the parent white-flowered pea is homozygous recessive (pp), hence all the offsprings will be heterozygous dominant (Pp).
