B. Global climate is complex, so changes in global climate are hard to predict.
Answer:
Resistance
Explanation:
Once a bacteria gains resistance to an antibiotic, we will have to find another antibiotic to use.
No it is not. The first step is asking a question. here is a chart that i hope will help you
<em>Living things... oh yes. </em>
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<em>The answer here would be "has a heart". Every living thing doesn't necessarily have a heart. Trees and plants do not have hearts, yet they are alive. (Some scientists believe that plants have pulses, though. No heart, but a pulse! Odd, isn't it?)</em>
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<em>I hope this answers your question.</em>
<em>-Toremi</em>
