The blob operon produces enzymes that convert compound A into compound B. The operon is controlled by regulatory gene S. Normally, the enzymes encoded by the operon are synthesized only in the absence of compound B. If gene S is mutated, the enzymes are synthesized in the both the presence AND absence of compound B. Gene S must encode a(n):
a. inducer.
The things with winter and overnight freeze are that this change of the weather can seriously harm the crop and do irreversible damage.
To prevent this, farmers use some methods.
One is the usage of heaters, not allowing the freeze to set.
Another one is to spray the crop with water before the predicted overnight freeze. When water freezes and turns into ice, it releases latent heat. Then, the ice that builds upon the plant will insulate it from the colder surrounding air temperatures.
The answer is through the placenta. The placenta is formed in the uterus of the pregnant woman. Its role is in the nourishment of the fetus. The placenta provides the fetus with nutrients and removes waste. The umbilical cord connects the placenta to the fetus and it serves as the transporting passageway.
* There have been times when naval vessels have collided with uncharted seamounts
* Seamounts can grow large enough to become an oceanic island
* Seamounts are usually in archipelagos, or groups of seamounts or island surrounded by a body of water
(: I hope this helps! :)
