Answer: Possession of Valves
Explanation: Veins possess valves which ensures that blood flows in only one direction. Valves helps blood to flow back to the heart against gravitational force.
Arteries don't have valves because the pressure originating from the heart is capable of causing the blood to flow in one direction.
Answer:
"...for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny."
(A)
cleaning oil spills, cleaning pollution and generating electricity, metabolising methane into methanol, converting newspaper to biofuel and treating depression to anciety.
hope some of my information helped
Answer:
<h2>Genotype, sequence, mRNA, cytoplasm, proteins, phenotype</h2>
Explanation:
The allele combination at a gene locus is known as an organism's genotype, which after expression define the phenotype of that organism.
Th sequence of nucleotide in the DNA then transcribed to produce mRNA by RNA polymerase. Then mRNA exported into the cytoplasm and works as template for the synthesis of protein. This protein defines the phenotype of that organism.
