This was so because the microscopes were not of high resolutions back then.
Answer:
c
Explanation:
because matter is any substance that has mass and occupies space
Located inferior to the stomach<span>, the </span>duodenum<span> is a 10-12 inch (25-30 cm) long C-shaped, hollow tube. The </span>duodenum<span> is a part of the gastrointestinal (GI) tract, attached to the pyloric sphincter of the </span>stomach<span> on its superior end and to the jejunum of the small intestine on its inferior end....</span>
When scientists read research articles in scientific journals, they apply skepticism in order to evaluate experimental procedures.
The scientists apply skepticism and evaluate experimental procedures to gain more knowledge on what things the researches are going on. In this way, a better conclusion can be made.