Large doses of antibiotics given to fight an infection are likely to destroy bacteria that produce vitamin k. in which digestive organ do we find such beneficial bacteria? a. stomach b. large intestine c. liver

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

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