Which of these statements is not true of the phylogenetic tree? a) it ranks organisms by importance in evolutionary history.

b)it depicts an organism's lineage as it changes over time.

c) it shows successive events of speciation in which one species gives rise to two.

Explain why process 2 is so important to sexual reproduction identify processes 1 and 3 state one difference between the cells produced by process 1 and cells produced by process 3

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 characteristics are typical of a human population in the postindustrial stage?