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
hjlf
3 years ago
6

What is a trait that is ancestral to all chordates?

Biology
2 answers:
tester [92]3 years ago
4 0
<span>chordates are the animals which are in phylum chordata and have backbone
</span>The  trait that is ancestral to all chordates is <span>a vertebral column that is backbone
so option D is correct
hope it helps</span>
zheka24 [161]3 years ago
3 0

its B

have a goed day

You might be interested in
What is chlorine and what is the atomic number
atroni [7]
Chlorine-the chemical element of atomic number 17, a toxic, irritant, pale green gas

atomic number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
6 0
3 years ago
In the exercise to determine the concentration of a solution of CuSO4, for the
Soloha48 [4]

Answer:

This question is incomplete

Explanation:

Experimentally, when trying to determine the concentration of an unknown sample of CuSO₄ with known absorbance, a standard curve is used. The standard curve is a scattered plot/graph in which known concentrations and there respective/corresponding absorbance are plotted on a "X and Y axis" graph (scattered plot). The absorbance is represented on the y-axis while the concentration is represented on the x-axis.

Once this known values are plotted on the standard curve, an unknown value (either absorbance or concentration) can be extrapolated from the curve. What is missing from the question is data required for the standard curve.

This question shows the absorbance of the CuSO₄ has been determined (most likely using spectrophotometer), the concentration could have been extrapolated from a standard curve.

An example of a standard curve is provided in the attachment for guidance.

Download docx
5 0
3 years ago
If a cell has 46 chromosomes, how many will it have after meiosis
Misha Larkins [42]
After meiosis you are left with 23
3 0
3 years ago
I) Write three important developments during the sixth period in<br>the history of taxonomy.​
GalinKa [24]
Shskdkdjfkkgg
Jsjdkfodkdjdkdkfkf
Jsjdkfkfkfjfkf
6 0
3 years ago
*Fill in the blank*
Gekata [30.6K]

The noncyclic pathway is a FLOW of electrons from water, to photosystem II, to PHOTOSYSTEM I to NADPH. Energy is released  as  ELECTRONS  move through the first electron transfer chain. This energy pumps HYDROGEN IONS  into the thylakoid compartment, and then they power the formation of ATP as they flow back out. Sunlight provides the energy needed to keep this cycle going.

----------------------------------------------------------------------------------------------------

  1. Luminous energy is trapped by chlorophyll in Photosystem II.
  2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
  3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
  4. <em>When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules. </em>
  5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
  6. <em>When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II. </em>
  7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
  8. The released energy is used to produce ATP molecules.
  9. Hydrogen ions go back from the stroma to the thylakoid compartment.

The final products are oxygen, ATP, and NADPH.  

--------------------------------------------

Related Link: brainly.com/question/13592516?referrer=searchResults

8 0
2 years ago
Other questions:
  • Which of the following is not a method by which antibiotics attempt to kill bactería?
    7·1 answer
  • Which era contains the Jurassic Period? A. Cenozoic Period B. Mesozoic C. Paleozoic D. Precambrian
    13·1 answer
  • Humans developed antibiotics to fight bacterial infections. However, some antibiotics are no longer effective in killing the bac
    9·2 answers
  • A person with type 1 diabetes experiences hunger, lightheadedness, tachycardia, pallor, headache, and confusion. the most probab
    8·1 answer
  • Which is NOT a similarity between glycogen and amylopectin? A) Each has branches of similar chain length. B) Each is highly bran
    7·1 answer
  • Ground tissue is found in a plant’s.... A. Stems only B. Stems and leaves only C. Roots and stems only D. Roots, stems, and leav
    13·1 answer
  • Who is women pls fast solve that can u help someone
    9·1 answer
  • How many significant digits are there in 6.023 * 10'23
    6·1 answer
  • The fibers of the iliocostalis muscle are divided into which three regions?
    7·1 answer
  • A plant cell has too many nutrients moving in and out of it. Which organelle most likely is not functioning correctly?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!