We cannot answer this because we have no answer choices. hope this helps...?
C. proteins-
The cytoskeleton is what provides structural support for a cell, and the cytoskeleton is made out of fibrous proteins.
Hope that helped!
These animals were living in an environment with a warm climate that results in changing sea levels. These conditions create a lot of shallow inland seas allowing these animals to thrive. The Cretaceous period is the last period of the Mesozoic area where new groups of mammals, birds, and flowering plants appeared on Earth.
C, because it protects the cell from the outside environment
Your answer would be Neptune. The planet can cause wind-speeds of frozen methane of up to 1,200 mph.
