The lymph system is a network of small vessels and organs that includes a. the thyroid, the thymus, and the lymph nodes b. the spleen, the thyroid, and the lymph nodes c. the spleen, the thymus, and the adrenal glands d. the spleen, the thymus, and the lymph nodes

Which best describes the structure of dna?

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?

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has