1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRissso [65]
3 years ago
12

The ancestors of modern-day fish were vertebrate chordates. Vertebrate chordates are believed to have evolved from invertebrate

chordates, which were similar to modern-day tunicates.
What change must have occurred during the evolution from invertebrate chordates to vertebrate chordates?

A.
A backbone evolved to enclose the spinal cord, which develops from the dorsal nerve cord.
B.
An endoskeleton evolved to enclose the dorsal nerve cord, which develops from the notochord.
C.
An endoskeleton evolved to enclose the spinal cord, which develops from the notochord.
D.
A backbone evolved to enclose the notochord, which develops from the spinal cord.
Biology
1 answer:
Scilla [17]3 years ago
8 0

Answer:

The correct answer is option B, that is, an endoskeleton evolved to enclose the dorsal nerve cord, which develops from the notochord.

Explanation:

It has been discovered that the ancestors of the modern-day fish were vertebrate chordates. The vertebrate chordates are considered to have evolved from the invertebrate chordates that are identical to the present day tunicates. It has been found that in vertebrates the endoskeleton has evolved to encompass the dorsal nerve cord that has been developed from the notochord (a characteristic of invertebrates).

You might be interested in
Introducing a vascular catheter directly into a vessel without further advancement past the punctured vessel is called _________
Alex_Xolod [135]

It is called central vascular catheterization

<h3>Importance of catheterization</h3>

Catheterization is defined as the use of medical devices that can be inserted into the body and used for different medical purposes.

Vascular catheterization is a peripheral catheterization that is used to detect certain upper and lower peripheral extremity conditions.

There are different types of vascular catheterization which include:

  • Arteriovenous (AV) fistula,

  • Arteriovenous (AV) graft and

  • Central venous catheter (CVC)

Central vascular catheterization involves Introducing a vascular catheter directly into a vessel without further advancement past the punctured vessel.

Learn more about catheterization here:

brainly.com/question/3911876

8 0
2 years ago
What time is it in Pottstown at the time of the map?
Sladkaya [172]
The Current Time in
Pottstown, Pennsylvania is:

<span>Friday
12/2/2016
8:36 AM
EST

Pottstown, Pennsylvania
is in the
Eastern Time Zone

Hope this helps

</span>
7 0
3 years ago
I rEALLY nEeD THiS AnSWeR sO bAD
Ilia_Sergeevich [38]

the answer is the third one c

7 0
3 years ago
Read 2 more answers
What enters the cell and becomes part of the cell's hereditary material without destroying the cell or replacating?
DiKsa [7]
<span>Latent virus would be the correct answer </span>
3 0
3 years ago
3
trasher [3.6K]

Answer:

D

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which most common cause of sleep deprivation in the hospital should the nurse consider when planning care? 1. fragmented sleep 2
    12·1 answer
  • All of the statements EXCEPT one are true about mutations. Which statement is false?
    15·2 answers
  • There are _____ phyla or categories of fish. 2 3 4 5
    9·2 answers
  • The portion of the brain that controls body temperature, thirst, appetite, and water balance is the
    15·1 answer
  • What are the reactants of photosynthesis? Check all that apply.carbon dioxideglucoseoxygenwater
    7·1 answer
  • If you answer right I will give you the brainiest!!!!!
    15·1 answer
  • How many chromosomes are in a gamete cell (egg or sperm) in a fruit fly?
    7·1 answer
  • Do you like pineapple pizza?
    11·1 answer
  • Tại sao bố mẹ thuần chủng khi sinh con sẽ đồng tính
    10·1 answer
  • Which is the correct order of events for fossil formation?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!