Explanation:
a family that communicats
Answer:
increases the frequency of the altruistic individual's genes in the next generation
Explanation:
People who constantly do altruistic behavior tend to be in a really good terms with other individuals. This will make them gain more ally throughout their life time and ensure their survival by receiving help from their allies when they face a problem.
If altruistic genes exist and resided in the individuals, the high survivalist factor make it more likely for the genes to be passed into next generation.
Answer: President Roosvelt promoted to the rank of brigadier general to <u>Benjamin O. Davis</u>
Explanation:
Benjamin Oliver Davis Sr. was a United States Army officer. He became the first African-American to rise to the rank of Brigadier General in the U.S. military in 1940. He was the father of Air Force General Benjamin O. Davis Jr.