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Through the evolution of antigenic variation,pathogens are able to
Tentative Explanation
A provisional hypothesis or theory proposed to explain an observation or phenomenon, subject to further investigation and testing.
Objective Observation
The process of gathering data or information through sensory input without bias or preconceived ideas influencing the perception.
Mary Anning
A pioneering 19th-century British paleontologist who made important contributions to the field through her discoveries of Jurassic marine fossil beds along the English Channel at Lyme Regis.
Paleontology
The scientific study of life that existed prior to, and sometimes including, the start of the Holocene Epoch (approximately 11,700 years ago). It involves the examination of fossils to understand the processes of evolution and the history of life on Earth.
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Q74: Earthworms,grasshoppers,and birds all have a<br>A)gastric cecae.<br>B)gizzard.<br>C)crop.<br>D)gastrovascular cavity.