Because the disease weakens the immune system and kills off its host.
Answer:
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The order of blood pressure in blood vessels would be letter "D. veins < capillaries < arteries". The arteries carry the blood towards the veins and has relatively thicker walls because of high pressure. The vein carry blood from capillaries back to the heart.
Answer AND Explanation:
When sodium atoms bond with one oxygen atom they form a covalent bond. However, there has to be two sodium atoms each with an extra electron that are donated to oxygen. Each of these sodium atoms gives oxygen one electron, allowing the oxygen atom to have a full shell with eight electrons. The sodium atom loses one orbital level since the electrons are donated.
4Na + O2 → 2Na2O
Answer: how am I supposed to answer this.
plant life cycle. animal life cycle.
flower larva, pupa, egg, and spore
fruit
seed
Explanation: