Question

PLEASE HELP!!! I WILL GIVE A MEDAL!!
disturbance of an ecosystem by human activity often has negative effects on the number of species,which is a measure of its what

Answer 1

did i already put this question in? @xxraider365

Answer 2

yea im pretty sure

Answer 3

well my whole test went away

Answer 4

omg

Answer 5

yep 45 questions, all gone

Answer 6

luckily i remembered most of them

Answer 7

dang

Answer 8

i still need this question to be answered though

Answer 9

im stuck on this one

Answer 10

me too

Answer 11

i think its biodiversity

Answer 12

im pretty sure it is