1b. Give an example of an ecosystem.

What group has historically made up the largest portion of immigrants in mexico?

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.

Abird flies at a speed of 75 metres per second for 15 seconds, how far does the bird fly