Answer:
True
Explanation:
Gram negative bacteria produce virulent factors at host pathogen interface via membrane vessicle trafficking as bacteria outer member vesicle for nutrition, invasion and other cell communication.
Greenhouse gases allow the sun’s rays to pass through
Greenhouse gases absorb infrared radiation from Earth’s surface
( sorry if it’s wrong)
Gene is a stretch of a DNA that determines a particular trait<span>. Genes can mutate and take two or more alternative forms, now these are called alleles of a particular gene. Now allele occurs in a fixed spot in a chromosome and in humans we have two sets of chromosomes. hope helps
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C (the third one) I believe is correct :)))))