The answer is 62 percent. <span>By 1999, after the Clean Water Act had been passed in 1970, the percentage of U.S. surface waters safe for fishing and swimming had increased from 36 percent to 62 percent. </span>
Answer:
they servive only in living cells.
Explanation:
the virus are connecting link between living and non-living. they are unable to perform life process outside the living cells. outside the living cells, the viruses behave as simple chemical so they are called as obligate intracellular parasite.
Answer:
<h2>Endoplasmic reticulum</h2>
The endoplasmic reticulum is a network of membranes within the cell through which proteins and other molecules move. Proteins assemble into organelles called ribosomes. When proteins are destined to be part of the cell membrane or exported out of the cell, ribosomes assemble them and add them to the endoplasmic reticulum, giving it a rough appearance.
Explanation:
<h2>MEXICO ♥</h2>
There are many varying characteristics and exceptions to each type of protist.
They have been previously categorized based on what they are not.
They are all eukaryotes composed of one or more cells that contain nuclei.
There are no exceptions to the characteristics of each type of protist.
They are microscopic and therefore too small to study accurately.
Recent studies show that protists have not descended from one common ancestor.
Alleles
I had bio a while ago though so I could be wrong...
