Oil and butter I’m not sure about the steak becauze it’s a mix of many things like lipids and protein but that’s my answer hope it helps
'colored feathers that camouflage birds from predators are found in the majority of the current bird population' would be correct since that would only focus on one species instead of many, natural selection includes all species, not just one.
The egg came first this was found out In July 2010
Answer:
C. Vaccination
Explanation:
vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.
