Because it can cause serious infections in the lungs, blood and our brains...It may also cause urinary tract and infections in wounds.
Answer:
Your answer is D). Like most cold-blooded animals, geckos' bodies are unable to maintain a homeostatic body temperature on their own, therefore they must bask in the sun in order to increase their body heat, and hide in the shade when it's too hot.
The F1 generation will appear to be only Bt
