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
Evgen [1.6K]
3 years ago
13

At one time, Chondrichthyes were thought to have split off from other vertebrates before the evolution of bone. Now we have conc

luded that the Chondrichthyes split off after the evolution of bone had started. This change demonstrate
Biology
1 answer:
Goshia [24]3 years ago
8 0

Answer:

Chondrichthyes Class of vertebrate animals characterized by a cartilaginous endoskeleton, a skin covered by placoid scales, the structure of their fin rays, and the absence of a bony operculum, lungs, and swim bladder. It includes the subclasses Elasmobranchii (sharks, rays) and Holocephali (ghostfish).

Explanation:

You might be interested in
Which method offers the most reliable way of assessing whether athletic performance is boosted by caffeine consumption?
Umnica [9.8K]

Answer:

Experiment

Explanation:

An experiment is conducted to test the activity of the caffeine in the blood stream of the athlete

7 0
3 years ago
What type of bond holds atoms together in a water molecule?
Brums [2.3K]
Hydrogen or ionic is the answer. But I would go with ionic
7 0
3 years ago
Read 2 more answers
What is the relationship between genes DNA and proteins
Law Incorporation [45]

Answer:

Although you might have heard people talk about a gene for red hair, green eyes or other characteristics, it's important to remember that genes code for proteins, not traits. While your genetic makeup does indeed determine physical traits like eye color, hair color and so forth, your genes affect these traits indirectly by way of the proteins created via DNA.

Hopefully, this answer helped! :D

8 0
3 years ago
Read 2 more answers
Which excersise involves abrupt explosive movement
RoseWind [281]
I would say maybe dance? Because in Hip Hop there are very sharp and abrupt movements.
Hope this helped! :-)
4 0
3 years ago
What substance is made during the second stage of photosynthesis?
Ratling [72]
The second stage of photosynthesis is the production of glucose from carbon dioxide. This process occurs in a continuous cycle, named after its discover, Melvin Calvin. The Calvin cycle uses CO2 and the energy temporarily stored in ATP and NADPH to make the sugar glucose.
8 0
4 years ago
Read 2 more answers
Other questions:
  • Plant cells undergo photosynthesis to produce glucose, a usable form of chemical energy. The energy produced by plants becomes t
    11·1 answer
  • More
    5·1 answer
  • Plant cells what are they
    13·1 answer
  • Which statement is true about the differentiated cells in an organism?
    7·1 answer
  • Could someone please answer this? Have you ever felt rain or snow falling down on you? Why do you think liquid water tends to mo
    11·1 answer
  • HELP 20 POINTS + BRAINLIEST some muscle cells have the ability to produce more mitochondria if they are involved in regular exer
    6·2 answers
  • Which of the following tropisms are the
    9·1 answer
  • plsssss help me with this .Evidence for evolution from living organisms comes from comparisons of their DNA, similar bone struct
    8·1 answer
  • Explain how the body provides oxygen to our cells and removes the carbon dioxide waste. In your description, be sure to include
    15·1 answer
  • Which contributes to the lack of evidence of the Period of Heavy Bombardment on Earth?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!