Answer: D
Explanation: As a result of scarce resources, societies must answer three key economic questions: – What goods and services should be produced? – How should these goods and services be produced? – Who consumes these goods and services?
Answer:
The immune system and blood cells
Explanation:
A muscle (skeletal muscle) contracts in response to a stimulus it receives in the form of electrical signals from the neurons. ... Therefore, the source of the signals detected by the EMG electrodes is the contraction of muscles. Formation of a muscles clench is a type of muscle movement that is voluntary.Mar 7, 202
There are, however, many microorganisms in the human microbiota that are closely related to pathogenic (disease-causing) organisms or are themselves capable of becoming pathogenic. Examples include bacterial species of the genera Staphylococcus, Streptococcus, Enterococcus, Klebsiella, Enterobacter, and Neisseria.
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