URGENT: WILL GIVE 20 PTS AND MARK BRAINLIEST!!

Has anyone done the CAVA Psychology 2.07 Unit Test: Biological Basis I only need questions 11-20 (the ones with the pictures) but the others are greatly appreciated. its psychology so ignore the biology subject.

What feature of cell theory is best demonstrated in the image

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?