Answer:
The correct answer is option c.
Explanation:
In the Barro Colorado Island, the mentioned local population of the butterfly species went on to become extinct mainly due to the fragmentation of habitats and the loss of habitats. The host plant on which the butterflies fed could not grow and they started to decline in number and slowly became extinct. Due to this the species of the butterfly also would have got extinct because of the lack of food.
R<span>egulatory proteins bind to repressor</span>
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Answer:Acquisition of a plasmid with a gene encoding an enzyme to inactivate the antibiotic
Explanation:
Clostridium difficile is a Gram-positive gastroimtestinal bacteria that forms spore it cause a range of diseases like antibiotic-associated diarrhea (AAD).
C. difficile genome harbors a variety of resistance genes that makes it resistance to different classes of antibiotics. Analysis conducted on C. difficile 630 genome identified genes encoding β-lactamase-like proteins and penicillin-binding proteins (PBPs) as one that mediate the resistance to the β-lactam antibiotics such as penicillin and cephalosporins this is done by an enzymes that unlocks the drug active site making the bacteria resistance to it.
There is a difference between the stem of these two plants because Ranunculus is dicot and Zea mays is a monocot. <span>Zea mays does not have a vascular cambium and has scattered vascular bundles composed of xylem and phloem tissue. On the other hand, Ranunculus has its vascular bundles in a ring arrangement and ground tissue is differentiated hypodermis, cortex, endodermis, pericycle and pith (there is no differentiation in Zea mays).</span>
