Answer: It is the key to blocking infections
Explanation: I hope this is right :)
Its the two first one, I took this
I watched a vid on bill nye, u should to he explains it good
Answer:
a. Salivary amylase
b. Mouth
c. Stomach
d. S cells of the small intestinal crypts of Lieberkhün
Explanation:
Carbohydrate digestion begins with salivary amylase in the mouth.
This enzyme hydrolyzes to produce maltose, oligosaccharides, and glucose for around 1–2 hours before it is deactivated in the stomach. When chyme reaches the duodenum, the S cells of the small intestinal crypts of Lieberkhün is stimulated to produce even larger quantities of this enzyme to continue digestion.
I THINK:
The DNA strands unwind, and
RNA polymerase binds to the
template strand.
The tRNA moves through mRNA
with the activated amino acids
attached to it.
The synthesis of mRNA begins.
The amino acids assemble
to form peptide.
The mRNA undergoes intron
splicing and exits the
nucleus.
(sorry in advance if it's wrong)
Answer:The ultimate source of all genetic variation is mutation. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele. Recombination also can create a new DNA sequence (a new allele) for a specific gene through intragenic recombination.
Explanation: