The answer is B. The reason why is because natural selection causes changes in a populations over many generations, and in this case the change that is being made is the that the population is becoming immune to a disease.
Answer: Mechanical digestion breaks food into smaller pieces.
Explanation:
Explanation:
the scientific method is the process that involves various steps to develop knowledge about the natural world that has characterized the development of science
Steps of the scientific method
•ask a question
•do background research
•construct a hypothesis
•Test your hypothesis by doing experiment
• Analyze your data and draw conclusion
•communicate your results
Answer:
Stratified squamous epithelium
Explanation:
Most animals, including humans, have stratified squamous epithelium in their esophagus. It may include keratin, which gives an extra layer of protection, allowing them to eat bigger and less chewed food. It should be noted that the esophagus has a mucous membrane and because of the muscular layers, called muscularis mucosae, the food can pass rapidly through it preventing damages in its layers due to coarser or abrasive food.
