Answer: A. Chinese and Irish immigrants, and African Americans
Explanation:
Following the Civil War, many southern railroads would hire, rent, or own slaves so the railroad was the most important industry that African Americans worked in. The Union Pacific Rail Road was the name of the construction project of railroads from the Missouri River to the Pacific and as laborers it mainly used irish immigrants. On the other hand The Central Pacific Railroad had Chinese laborers by the year of 1868 they constituted eighty percent of the entire workforce.
The answer is C : Avoided the issue of slavery
To find a quicker way to Asia and India
Answer:
Hey! I think these are the answers??
Has flippers instead of wings - > Allows for movement
Has black and white camouflage - > maintains homeostasis
huddles in groups to stay warm - > protects from predators
can swallow food without chewing - > provides energy source
Explanation:
I hope this is right! but I'd wait and see if someone else answers to make sure!