I would say the best answer to go with is A. Not to sure.
Answer:
The correct answer is A. Test.
Explanation:
A test is different from an experiment: Before performing a test, there is an expected result. The test is performed to show this result. In an experiment, the result is open. Very often, tests are performed as part of an experiment.
Answer: keyword analysis
Explanation: keyword analysis is a method skilled people in boosting the quality and amount of the quantity of data sent and received by people that visit a website by increasing the visibility of a website to users of internet search engine, make use of in other to locate and study alternate search words that individuals input into search engines while searching for the same topic.
Answer:
All blood cells are produced from undifferentiated precursors called pluripotent stem cells in the bone marrow. Other cells produced from the pluripotent stem cells help defend against bacterial infection, produce antibodies against foreign antigens, and are active against hypersensitivity reactions
Explanation:
hope it helps!!!