4 is true with question you asked
Explanation:
HIV is a decease that Is caused by sexual intercorse
<span>There are two parts of cellular respiration that occur in the mitochondria and they are the citric acid cycle and the electron transport chain. The citric acid cycle is also known as the Krebs cycle but is also sometimes called the tricarboxylic acid cycle.</span>
Urine is stored in the Bladder before it leaves the body.
<span>By the age of 4 the hippo campus and the frontal lobe must be developed to have good memory. The hippocampus forms the limbic system and is involved in the consolidation of memory from the short term to long term. The frontal lobe is important in forming short term memories and forming long term memories.</span>