Question

Best answer gets a medal (: 1. A flexible, supporting structure found only in chordates is the (1 point) nerve net. notochord. pharyngeal slits. dorsal fin. 2. Ancient chordates are thought to be most closely related to which of the following species? (1 point) spiders earthworms octopi sea stars

Answer 1

A flexible, supporting structure found only in chordates is the notochord.

Answer 2

what about #2 ?

Answer 3

umm.....one sec :)

Answer 4

Ok (:

Answer 5

Ancient chordates are thought to be most closely related to which of the following species d. sea anemones

Answer 6

Thanks . I Need Help With Number 3 Too . . .
Fossil evidence indicates that Myllokunmingia, the earliest known vertebrate, had feathery gills, skeletal structures thought to be made of cartilage, and traces of fins. Based on this description, Myllokunmingia was most likely an early species of (1 point)
reptile.
fish.
bird.
mammal.

Answer 7

kk

Answer 8

IT IS B FISH!!!
Fossil evidence indicates that Myllokunmingia, the earliest known vertebrate, had feathery gills, skeletal structures thought to be made of cartilage, and traces of fins. [ Based on this description, Myllokunmingia was most likely an early species of FISH. ]

Answer 9

Thank You Again . Lol (:

Answer 10

oo no problem :) anything else??

Answer 11

Theres 2 More Questions If You Dont Mind ;

Answer 12

sure :)

Answer 13

4. Which of the following animals lacks a notochord in both its embryonic and adult stages? (1 point)
Pikaia
worm
lancelet
tunicate
5. What does fossil evidence indicate about the order in which these three vertebrates evolved: a bony fish with a jaw, a jawless fish, and a fish with leglike fins? (1 point)
The bony fish evolved before the jawless fish.
The fish with leglike fins was the last to evolve.
The jawless fish was the last to evolve.
The fish with leglike fins evolved before the jawless fish.

Answer 14

B) Worm
C)The jawless fish was the last to evolve.

Answer 15

Alrighty :D Thanksss !

Answer 16

no problem you have a great rest of your day :)

Answer 17

B
D
C
B
B

Answer 18

1. A flexible, supporting structure found only in chordates is the (1 point)
(0 pts) nerve net.
(1 pt) notochord.
(0 pts) pharyngeal slits.
(0 pts) dorsal fin.
1 /1 point
2. Ancient chordates are thought to be most closely related to which of the following species? (1 point)
(0 pts) spiders
(0 pts) earthworms
(0 pts) octopi
(1 pt) sea stars
1 /1 point
3. Fossil evidence indicates that Myllokunmingia, the earliest known vertebrate, had feathery gills, skeletal structures thought to be made of cartilage, and traces of fins. Based on this description, Myllokunmingia was most likely an early species of (1 point)
(0 pts) reptile.
(1 pt) fish.
(0 pts) bird.
(0 pts) mammal.
0 /1 point
4. Which of the following animals lacks a notochord in both its embryonic and adult stages? (1 point)
(0 pts) Pikaia
(1 pt) worm
(0 pts) lancelet
(0 pts) tunicate
1 /1 point
5. What does fossil evidence indicate about the order in which these three vertebrates evolved: a bony fish with a jaw, a jawless fish, and a fish with leglike fins? (1 point)
(0 pts) The bony fish evolved before the jawless fish.
(1 pt) The fish with leglike fins was the last to evolve.
(0 pts) The jawless fish was the last to evolve.
(0 pts) The fish with leglike fins evolved before the jawless fish.

Answer 19

for whoever is wondering they are 100% right

Answer 20

lol i missed 5....thnx bruhh