Which best describes the ecosystems on Earth? A. Earth has mostly rain forest ecosystems.
B. Separate ecosystems can affect each other.
C. There are very few types of ecosystems on Earth.
D. Ecosystems do not interact with each other.

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?

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

What is the problem in this article? what solution does the article propose?