What is the best way for a disease causing microbe to replicate? by killing it’s host by keeping us alive as hosts but spreading germs by killing all possible hosts Heterozygotes: do not get recessive disorders have two different copies of a gene by carrying a disease but showing health, the heterozygote is often immune to other diseases Being a carrier for the mutation know as Delta 32 gives a person resistance to: The plague malaria cholera Being a carrier for sickle cell anemia gives a person resistance to: the plague malaria cholera How do animals and large populations cause crowd diseases animals standing water was a breeding ground for bacteria animal diseases were spread from the water via mosquitoes to humans the disease jumped from animal to human genome immune system development works similarly to the ability to break down ethanol, so: no one can break down ethanol everyone can break down ethanol groups who have never had alcohol in their populations have a harder time breaking down ethanol, which will react differently in their systems prior to domestication, people lived in small communities so if a person got sick, the disease killed the group along with the disease. no immunity was shared. once domestication started , animals required people to live in larger communities: densely populated areas gained antibodies against crowd diseases antibodies were passed down through the generations causing immunity immunity and antibodies are passed through breastmilk true or false: prior to domestication, people lived in small communities so if a person got sick, it killed the group along with the disease so no immunity was developed true false What is an animal disease that jumped species to humans lyme disease yellow fever all of these What is the best way to stop a pandemic? immunity sharing water with our domestic animals quarantine