True
All somatic cells have same genes but the genes whose product is not needed are turned off. Some genes are expressed constitutively and some genes are turned off and on depending upon the requirement of proteins.
Number one is C and number two is A
Answer:
B
Because since they always kill the trees they invade by smothering them.
Most of it follows its cycle, going back to the atmosphere.
The image below, shows you how the nitrogen cycle is.
Hope it helped,
Happy homework/ study/ exam!
Answer:
The crust is thinner and less dense than the mantle.