The antennae help the crab hid from predetors and get food. The antennae can also detect if predetors are around.
The crab color is also helpful because it helps crabs camouflage in the (sand)enviroment.camouflage helps them blend in with sand so they wont be snatched up by predators(seagulls) flying in the sky.
Are you talking about the colonial times? Basically, in the colonial times the English sought to establish new settlements in the places which today as a result have a big English-speaking white population ( so that's how you know they had establishments there)- so among others Northern America- today's USA and Canada and South Africa.
Answer:
Explanation:27 BCE: The Pax Romana Begins
96 CE: The Emperor Nerva, the first of the Five Great Emperors, takes the throne
180 CE: The Pax Romana Ends
324 CE: The new Eastern Roman Empire capital is renamed Constantinople after Emperor Constantine.
410 CE: Alaric, a Visigoth, invades Western Rome
476 CE: Odoacer deposes Emperor Romulus Augustus ending the Roman Empire In the west
I put this in chronological order for you :)
Hope this helps :D
The main reason a person becomes a supervisor is D. Work related knowledge