Only 1 of the following is TRUE, about DNA replication

a) nitrogenous bases from the cytoplasm link up with an exposed complementary base
b) the daughter DNA strands contain no part of the original parent strand
c) the lithium bonds between bases break
d) it occurs during prophase1 of meiosis

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

What best describes lactic acid fermentation?

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?