I believe that an adjuvant is a chemical addictive that increases the effectiveness of vaccines. It is a pharmacological or immunological agent that modifies the effect of other agents. It may be added to a vaccine to modify the immune response by boosting it such as to give a higher amount of antibodies and a longer lasting protection, and hence minimizing the amount of the foreign material or vaccine injected.
Since chemical weathering is the reaction of rocks with other chemicals, the answer should be answer D!
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Answer:
• Have true roots, stems, and leaves
• May have seeds
• May not have seeds
• Have vascular tissue
Explanation:
Remember that they can be put into two groups ( discussing having and not having seeds )
The half-life of Virtualium is 12
