model to represent natural selection in real life. What is a disadvantage of this model (something that may not be accurate or it doesn’t explain/show)?

Arelationship where each person relies on the other; a give and take relationship

Which event in the history of the americans with disabilities act is an example of a conflict between different levels and branches of government?

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?