It is one of the most groundbreaking innovation existed.
Genetic engineering helped in many aspects of life in ways that will improve it. For example, it paved way to new agricultural products that could be sold in local markets such as fruits, vegetables, etc. It also contributed to exploring the wide ranged biotechnology that could be done on animals, extracting genes from different species and making its characteristics "fuse" with another, therefore, developing into new and stronger kinds of animals. Mostly, it contributed to humankind as an instrument in medical field. It was used to cure diseases and conditions that highly affects a human body and adds fatality. It enters into humans' molecular biology and creates a restoration for the damaged DNAs and cells in the body. Genetic engineering built a biological advancement in the modern world's technology by helping as much species of organisms as possible.
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Crayfish excrete waste directly through their bloodstream.
Blood is forced through the arteries that empty into spaces within the body cavity. Once the blood has drained through these spaces and bathed the organs, it collects in the large ventral sternal sinus. As the blood circulates, the green gland filters out waste materials. The fluid waste is then excreted through a pore just anterior to the mouth.