What key words does the question contain and what do they mean?
What will be an ideal response?
pH – this is the –log[H+]
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Answer the following statements true (T) or false (F)
1. Which of the following are true of hagfish? 2. Sharks have cartilaginous skeletons because bone-forming ability had not yet evolved in vertebrates when they originated. 3. The swim bladder is an organ in primitive fish from which the lungs of terrestrial vertebrates developed. 4. The fins of lobe-finned fish are supported by extensions of the skeleton and are moved by muscles within the fin whereas the fins of ray-finned fish are supported by flexible, nonskeletal elements and are moved by muscles from within the fish's body.
What fleshy projection is an adaptation some fish have to lure prey in?
a. Barbel b. Antennae c. Photophore d. Appendage
Which two of the following statements regarding the continuation phase of infection are true?
a. this is the fifth stage of infection b. the continuation phase is generally over within a few days c. Not all infections have this phase d. this is the third stage of infection
Use a specific example to explain how a negative feedback mechanism may be used to regulate the function of
endocrine glands. What will be an ideal response?