Which pathogen , by being the smallest is able to spread and infect the greatest number of hosts? A. bacteria
B. fungi
C. protists
D. viruses

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

The means by which a cell transports large molecules out of the cell is called