Well I think from what I remember, Primary consumers eat vegitation and so if a virus broke out, if it wiped out most of the PLANTS then primary consumers would probably die out or just have less of them with not a lot of food, But if the virus wiped out other consumers such as carnivores, then the area would be over populated with no predators to keep the numbers of primary consumers at a stable amount. Hope this helped!! :D
The equipment and tubing might have still been touched or used, even if there isn't blood inside. All equipment should be thoroughly cleaned before use, or if necessary, discarded.
Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
