Answer:
used by plants as nutrients i think
Explanation:
About 11 to 15 days after conception the zygote attach to the uterine wall
Answer: plateaus
Explanation: there not canyons so you can cross that off and its not the dunes nor the deltas so if you look at the picture you can tell it is the plateaus
Answer:
it helps with Stage 2
Explanation:
in the nitrogen cycle you need bacteria to help it change into different forms of matter