C. The nuclear envelope contains the nucleus and forms a barrier between it and the cytoplasm
The answer is true. These are all signs of communication.
Explanation:
Positive : creating forest reserves, proper recycling of waste, etc.
Negative : Bush Burning, improper waste disposal, etc
The genetic code is carried by the DNA
Answer: I think it's D
Explanation: A mineral is a chemical substance made up of one or more chemicals having a definite crystal structure. Rocks do not have a definite chemical composition whereas minerals do. Sometimes a rock may contain organic remains in it.