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Elements that are the border line of metals and non-metals.some elements near the stepped line have mixed properties of metals and non-metals these elements are called metalloid e.g. Silicon and Germanium
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Answer:
The molecule on the right; the middle carbon is asymmetric
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Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.
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From Google
Mitochondria and chloroplast have similar DNA, which is not evidence for the endosymbiotic origins of mitochondria and chloroplasts.
According to the endosymbiotic theory, a chloroplast and a mitochondria were the independent prokaryotes. Both can be ingested by a large prokaryote and resist digestion. As a result, they continued as endosymbionts and eventually lost some of their autonomic properties. They divide by binary fission, have their own genetic material, possess 70s ribosomes, and Both include their own transcriptional and translational machinery.
Therefore, considering endosymbiotic origin theory, Both Mitochondria and chloroplast have similar DNA is not a piece of evidence.
Learn more about endosymbiotic origins theory here
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Lysosomes, dead organelles, waste products and other unwanted substances are removed through lysosomes
