What features evolved over time in the different animal phyla and classes? How did the features provide advantages that helped each group survive in their environment?

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

According to this food web which of the following would be considered primary consumers