How much solute is there in a 100-gram solution if the concentration is 5 percent?

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing