Answer: mixed message
Explanation: mixed messages are verbal or non verbal communication that are contradicting.
Ramona got a mixed message from Dan after he expressed a romantic interest in her. This is because her response was confusing and contradicting at the same time, while she smiles at Romona and put her hand on his arm which is a sign of acceptance in communication, she then verbally said she isn't interested in him.
Because the Europeans had already been exposed to the diseases and had built an immunity to it, and the Native Americans hadn't, hope this helps
Answer:
life expectancy at birth, educational attainment