Answer:
1a) The process a cell goes through each time it divide
Answer:
Explanation:
It's hard to tell. I was looking at a diagram representing the atmosphere. 50 miles is right on the edge of the Mesosphere. The temperature is about - 135 or so. It does climb up to about - 49 according to the Royal BC Museum.
Answer: Adaption (I think)
Explanation: Certain living organisms and animals can adapt to harsh environmental conditions, and if I'm not wrong, cells can adapt, as well.
D. The repressor is freed from the operator when lactose is present.
Think of a bacteria that comes into contact with some lactose sugar in milk. Normally it's not in milk, so the gene is repressed (prevented) from making the lac enzyme (which digests lactose). Now when it comes across some milk, it wants to make as much lac as possible to eat up all the lactose.
FYI: trp for tryptophan works the exact opposite with repressor blocking when trp IS PRESENT.
20% of the Earths crust is made up of non-silicate minerals
