Answer:
Aristotle first wrote about the practice of animal testing in ancient
Greece during the third century BC.
Explanation:
Answer:
Leukemia may be defined as the cancer of the blood cells especially white blood cells. The leukemia may occur due to mutation or may also occur due to the biological agents.
Leukemia causes the abnormal and uncontrolled growth of the blood cells. These white blood cells are unable to fight with infections and causes the bone marrow to produce impair formation of blood cells. The patient shows abnormal growth and large count of leukocytes.
C) neurons - nerve tissue - brain - central nervous system - human being
Answer:
At sea level, air pressure is greatest because it is caused by the weight of the entire column of atmosphere at that altitude over that location. As altitude increases, the column of atmosphere gets shorter, and so less weight is pressing down at a given altitude, so atmospheric pressure is reduced.
The steatite seals found in the Indus valley resemble seals found at contemporary sites in Mesopotamia.
The steatite seals are also referred to as the Pashupati seals and are found in major regions of the Indus Valley civilization.
Scientists have managed to find a variety of seals that belongs to the Harappan site of the Indis Valley civilization.
These seals have also been known to be founded in the Mesopotamia region. Scientists are researching and finding evidence that the steatite seals found in the Indus valley and Mesopotamia may belong to the same ancestors and might have migrated over time.
To learn more about Mesopotamia, click here:
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