Plants, protists, fungi, and animals are all known to obtain energy through aerobic respiration. which of the following must be present in all these organisms for this to be true?
a) mitochondria
b) hemoglobin
c) chlorophyll
d) ribosomes
e) cellular walls

The arrangements of lipids in the membrane makes the cell semi permeable .

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey