Answer:
closed circulatory system
Explanation:
The blood is pumped through a closed system of arteries, veins, and capillaries. ... Still, blood can flow backward and the system is only slightly more efficient than the open system of insects. The closed circulatory system has more advantages over the open circulatory system.
Answer:
D. In eukaryotes there are introns
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Vegetative Reproduction????
Gene Therapy is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele. These disorders are usually hereditary, passed down through generations.
