Answer:
1 g/mL. Thus, 20 mL of pure water weighs 20 g.
Explanation:
During active transport, the sodium pumps would transfer the solutions opposite the concentration gradient. This means that it would go from Solution A to Solution B
Answer:
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
<span>The answer is, C. Antibiotics are often ineffective in treating older people who have deficient immune systems
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