Diagram the sequential changes in the coral reef death spiral, and explain the positive feedback process that promotes the accelerating growth of seaweed following the death of coral polyps in a bleaching episode
What will be an ideal response?
The basic elements of the process are explained in the text. Mark Hay and Douglas Rasher have published a lucid account of the process (Corals in crisis, The Scientist, August 2010
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Many carbohydrates are energy storage molecules.
Answer the following statement true (T) or false (F)
Failure of the SA node to depolarize would result in an ECGÂ ________.
A. lacking a T wave B. that is isoelectric C. lacking a P wave D. lacking a QRS complex
Nonvesicular synapses are unique because they have
A) a postsynaptic membrane. B) receptor proteins. C) neurotransmitter release. D) a communicating junction. E) two interacting neurons.
The main collecting duct of the lymphatic system is the ____ duct
a. lumbar b. thoracic c. cervical d. sacral