It is a prehistoric bug that is mostly closely related to the arachnids of today. I lacks a spinneret though. It is one of the first trigonotarbids to ever be described. (It looks like a spiky tick. Seriously)
The answer is; Physical weathering does not change the composition of the rock while chemical weathering does.
Physical weathering only cracks and breaks the rocks into smaller pieces. Chemical weathering causes a reaction between the rock minerals and acidic rain or organic acids from plants forming different minerals or dissolving the rock minerals.
Answer: the correct option is : highly developed cell- cell communication.
Explanation: In complex multicellular organisms, cell - cell communication also known as cell signalling is part of any communication process that leads basic activities of cells and coordinates multiple cell functions.
Scientist manipulate the genes of an organism
Answer:
I think the correct answer is A
Explanation:
