According to the endosymbiotic theory, infoldings in the cell membrane of an ancestral prokaryotic cell gave rise to endomembrane components, including the nucleus, endoplasmic reticulum and golgi apparatus in what would become eukaryotic cells. the evolution of endomembrane components provided for compartmentalization in eukaryotes, leading to more efficiency in cell processes. which part of the endomembrane system provides a mechanism for transporting proteins from the rough er to the golgi apparatus?
a) vesicle
b) lysosome
c) smooth er
d) peroxisome

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.