Question

during the Cambrian explosion that began the Paleozoic era, the many new forms of life that evolved ?

a) lived on land
b) were invertebrates lived in the sea
c) were vertebrates covered with scales or fur
d) were single celled

Answer 1

This "Cambrian explosion" included the evolution of arthropods and chordates (animals with rudimentary spinal cords)

So what do you think the answer is?:)

Answer 2

I think its D or A what is it?

Answer 3

I need help fast

Answer 4

Its B

Answer 5

It B good job Badge-man

Answer 6

Princess Anna also gave you the answer. Its B good job Princess Anna. I hereby promote you to Queen Anna.

Answer 7

Wait...That was in 2013? well I guess she won't see my post and change her name to Queen Anna.
:/