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
katrin [286]
3 years ago
9

The first vertebrates appeared in which period?

Biology
2 answers:
ASHA 777 [7]3 years ago
8 0
The first vertebrates appeared in the Paleozoic Era, specifically the Cambrian period. The vertebrates were <span>jawless fish with backbones made out of cartilages. It was thought that the first fishes evolved during this period. The correct answer to this question is letter "A. Cambrian". I hope this helps.</span>
Andre45 [30]3 years ago
7 0

Answer:

The answer is Cambrian Hopefully this helps any T4L students!

You might be interested in
Food examples of carbohydrates?help?
Sergeu [11.5K]

From the above foods; oil, bread, steak, chicken, butter and pretzel, only 2 contain lots of carbohydrates. Colour the bread and the pretzel.

5 0
3 years ago
Read 2 more answers
Because of their increased protein needs, it is unhealthy for athletes to choose to become vegetarians. because of their increas
pav-90 [236]
Athletes need a lot of protein and it is unhealthy for a athlete to become vegetarian Bc they don’t have anything to burn off during the sport
4 0
4 years ago
Read 2 more answers
What are the 3 major dissolved gases that are essential to ocean life?
adoni [48]
It would be nitrogen, oxygen, and carbon dioxide (:
x
6 0
3 years ago
Removing vegetation from a slope ___ the erosion of topsoil.
balandron [24]

Answer:

Increases (dont mind this it's to get past the letter minimum)

Explanation:

Your answer is increases

3 0
3 years ago
Which is the strongest claim for a presentation about the global problem of a lack of clean drinking water? It is interesting to
Dmitry [639]

Answer:

The lack of access to clean drinking water poses a serious health risk around the world, and funds must be raised to help achieve universal access.

7 0
3 years ago
Other questions:
  • What change could a student measure to collect data about the rate of photosynthesis in a certain type of algae when it is expos
    7·1 answer
  • C2H12O6 is a type of
    15·1 answer
  • A 15 year old male suffered diffuse brain injury after wrecking an atv. he had momentary confusion and retrograde amnesia after
    9·1 answer
  • A botanist wants to see how different colored light waves influence the growth of pea
    6·1 answer
  • A team of science researchers is trying to decide which type of microscope to purchase for their laboratory. Compared to electro
    9·1 answer
  • What type of region is the state of Kentucky?
    6·2 answers
  • Hurry! Will mark brianlest if correct, worth 11 points! Which best explains the zygote?
    15·2 answers
  • 20. What is the difference between adaptation<br> and evolution?
    7·2 answers
  • What two main factors would best indicate the quality of life of a country’s population?
    6·1 answer
  • The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed 3-chambered hearts.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!