Two scientists want to determine if dolphins vocally mimic the pitch of our voices in attempt to communicate. The scientists track each time a given dolphin's vocalization matches the pitch of their voices when the scientists are talking, but not directly communication with the dolphin. Then, they record the pitch of another dolphin's vocalization when the scientists are talking directly to the dolphin. Both times the scientists talked for 3 minutes. Identify each of the following parts of this experiment below by matching them together.

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

What is the most abundant vertebrate on earth?

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates