Answer:
A scientific hypothesis that is subsequently extensively tested and continues to appear valid may be called a <u>THEORY.</u>
It's the monthly cycle which occurs in female during which unfertilized ovum dies and pass out through vagina in the form of blood.
In a point mutation, one single base nucleotide (A, C, T or G) is replaced by a different one. This results in the change of one amino acid in the protein. (A minor change that may or may not affect the overall function of the protein) .a frameshift mutation, one or more base nucleotides are inserted or deleted from the sequence. This shifts the 3 basepair codons resulting in a change in the amino acid sequence that is coded. An entirely different protein (usually nonfunctional) is coded.
Organisms obtain energy from the foods
when excess fertilizers wash off of the nearby farms and into the lake, they become food for the algal blooms that can plague the lake in the summer. So, reducing fertilizer use and preventing runoff directly into the lake would be one way of reducing eutrophication.