Which structures bring oxygen from the trachea to the lungs?

a.) capillaries

b.) bronchi

c.) alveoli

d.) bronchioles

What is the sequence of amino acids corresponds with the rna strand ucg ggg cac

Why is it important that fibrin is insoluble in water?

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?