In their mechanism of action, a difference between lipid-soluble and water-soluble hormones is that in their mechanism of action, a difference between lipid-soluble and water-soluble hormones is that lipid-soluble hormones bind to an intracellular receptor and this hormone-receptor complex binds to dna water-soluble hormones cross the plasma membrane more readily than do lipid-soluble hormones water-soluble hormones bind reversibly to dna lipid-soluble hormones activate a "second messenger" pathway the water-soluble hormones travel only in the blood, and the lipid-soluble hormones travel only in the lymphatic fluid

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?

Environmental impacts on evolution : mastery test

Is there any solid scientific evidence that humans have been cloned?