Which one of the following is true about antibiotics?
antibiotics are usually effective against viruses.
antimicrobial chemicals are never toxic to humans.
penicillin is an antibiotic produced by a fungus.
although there is some antibiotic resistance, it is not considered a serious
problem.

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Heyme with this one ❤ ☺❤ name the part of the cell concerned with the transmission of hereditary characters from parents to offspring. "i will mark brainlist "

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%