I would say Australopithecus because so far, its skull is the one that resembles the most that of a human's.
Answer:
These products help treat and prevent diseases. From the Ebola vaccine to mapping human DNA to agricultural impacts, medial biotechnology is making huge advancements and helping millions of people. Some of the most recent uses of biological tech is work in genetic testing, drug treatments, and artificial tissue growth
Explanation:
DNA, Deoxyribonucleic acid. DNA is the empirical proof of God.
DNA can never be created naturalistically and is absolutely uniquely structured:
1. DNA contains multiple levels of coded organically constructed information that controls all cellular functions and no natural process is capable of creating or coding.
2. The amino acids that provide the coding fo the genetic information are homochiral. The few, not all, amino acids that can form naturally are not symmetric and are either left-handed or right-handed, called racemic. All amino acids in DNA, RNA, proteins, enzymes, ribosomes and other cellular assemblies are left-handed, 100%. No right-handed amino acid can function within DNA. Nature may produce a partial list of racemic amino acids, but cannot produce homochiral amino acids, again, only produced within a cell.
3. Phosphate penta-sugars provide the overall dual backplane physical structure to allow the amino acids to be affixed and are all right-handed homochiral, not produced in nature and exclusively right-handed.
Answer:
The correct option is B (natural killer cells).
Explanation:
Natural killer cells: They are defined as the type of cytotoxic lymphocyte which are critical to the innate immune system. The NK cells play an important role in to provide rapid response to tumor formation, virus infected cells, and acting after three days of infection.
While cancer cells die, they release some antigens, than these antigens are recognized by the immune system, and later they are presented on the immune cells which are known as antigen presenting cells. So, if these cells are absent than they increase the chances of developing malignant tumors.
LD50 is used to express TOXICITY OF TOXINS AND POISONS.
LD50 stands for Lethal Dose 50. This is the standard measure of the toxicity of a material, which will kill half of the sample population of a particular test animal in a defined time period, when they are exposed to the material.
