Question

history of life questions????

Answer 1

Cycads and ginkgoes were important plants to the world's terrestrial ecosystems during the:

a) Paleozoic Era

b) Cenozoic Era

c) Mesozoic Era

d) Precambrian

Answer 2

@LaShaun97 :)

Answer 3

it's c

Answer 4

really? awesome thx!

Answer 5

ur welcome

Answer 6

you have more questions

Answer 7

yea actually alot more lol

Answer 8

ok im ready

Answer 9

haha k thx alot bro

Answer 10

Dinosaurs evolved first in the:Answer

Jurassic

Permian

Triassic

Cretaceous

Answer 11

NP

Answer 12

Triassic

Answer 13

Dinosaurs:Answer

went extinct at the end of the Cretaceous

were archosaurs

may have had some degree of endothermy (a way to control body temperature)

all of these

Answer 14

Which of these is NOT a subdivision of the Mesozoic era?Answer

Cretaceous

Jurassic

Permian

Triassic

Answer 15

hold on

Answer 16

ok cool

Answer 17

1. Mesozoic
2. Triassic*
3. All of the above*
4. Permian (a period of the paleozoic era, the era immediately prior to the mesozoic)*
5. Jurassic would be my guess also!
6. Cretaceous*
7. Trilobites*

are these some of ur answers

Answer 18

What the heck!?!?!?!?

Answer 19

what

Answer 20

lol u take keystone????

Answer 21

yep

Answer 22

awesome!

Answer 23

yep..al of those r the right answers...brb

Answer 24

haha thanks alot bro

Answer 25

NP

Answer 26

do u have 8 9 10 11??

Answer 27

yep hold on

Answer 28

8. This question has correct two answers! Pterosaurs, as you've chosen, is a correct answer. So too, however, is nodosaurs. Nodosauridae is a family of ankylosaurian dinosaurs. I think that this potential answer was intended to be 'mosasaur' instead, which is another group of extinct aquatic reptile. Because of the phonetic similarity, there was probably a mix up. Mention all this for extra credit!*
9. Oh man! Please learn your natural history, and your biological anthropology. Both are very, very interesting. The mesozoic era began with the triassic period, 251 million years ago. You don't believe humans and dinosaurs once coinhabited the Earth, right???? ************************
(We're now in the cenozoic, an era which began with the K-T extinction event (End-Cretaceous)).
10. True* (Current consensus says comet)
11. True* (albeit exintct)

Answer 29

these are from my yahoo...i was helping someone one the same exact thing

Answer 30

haha cool!

Answer 31

yep

Answer 32

wait so what is the answer for 1? cause its a multiple choice