In the food chain described above, what are the producers? A
the antelope that eat the grass
B
the scavengers that eat the dead lion
С
the grasses the antelope eat
D
the lions that eat the antelope

Please help

What types of energy transfers and energy transportations are involved in the domino chain reaction?

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?

According to the cladogram, which organisms have roundworms as a common ancestor?