Observe the two food chains below. Then answer the questions.1 = grass - ox - person - fungus and bacteria 2 = nectar - insect - monkey - hawk - fungi and bacteria

a) Who are the producers of these chains?
b) What are the decomposers?
c) How many trophic levels are there in each food chain?
d) Identify the organism that is at the third trophic level of each of the chains.

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Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.

Si units are the modern form of the