paleozoic era

Question 1

when was the paleozoic era?

Answer 1

542-251 mya

Question 2

when was the cambrian explosion?

Answer 2

535-525 mya

Question 3

what appeared after the explosion?

Answer 3

half of all living animal phyla

Question 4

what main animals appeared?

Answer 4

arthropods, chordates, echinoderms

Question 5

what body type did paleozoic animals have?

Answer 5

large bilateral bodies with hard, materialized skeletons

Question 6

what evolutions arose from the cambrian explosion?

Answer 6

complete digestive tract, advanced locomotion, coevolution b/w predator/prey

Question 7

what led to the decrease is ediacaran life forms?

Answer 7

increased predator interactions

Question 8

what animals arose after the cambrian explosion?

Answer 8

amphibians, birds, reptiles, mammals

Question 9

when do vertebrates emerge/colonize land and what is their significance?

Answer 9

emerged after cambrian explosion, colonized land 365 mya, emerged as top predators

Question 10

why are arthropods significant?

Answer 10

first to adapt to terrestrial habitats

Question 11

what increases after the cambrian explosion?

Answer 11

diversity