Answer:
The rough endoplasmic reticulum
Explanation:
The rough endoplasmic reticulum has structures called ribosomes attached to them. Proteins which are to be made and transported are made in the ribosomes of the rough endoplasmic reticulum. The proteins are made by the ribosomes and modified by the rough endoplasmic reticulum. From the rough endoplasmic reticulum, the proteins move to the Golgi complex where they are packages to be moved. GPCRs proteins are also produced by the rough endoplasmic reticulum just like the other proteins.
Farming, deforestation and construction all lead to the loss of terrestrial habitat. Conservation would be protecting terrestrial habitat.
Respiratory system, because the lungs and diaphragm would get the oxygen from the air, and transfer them to the circulatory system (that's a pretty basic explanation, there's much more to it)
2 is B. Water freezes and 4 is the rock breaks.
C) hope this helps may not be right :4