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
kaheart [24]
3 years ago
9

Ancient chordates are thought to be most closely related to echinoderms because the embryos of chordates and echinoderms are

Biology
2 answers:
Ulleksa [173]3 years ago
6 0
The answer is sea stars. Sea stars can then push their stomachs out of the body while inserting it into the prey thus the food is being digested externally. Echinoderms are having 5 or at times multiple of 5 arms. Their shell is made of calcium carbonate.
Natali5045456 [20]3 years ago
6 0

Answer:

Both show similarities in their embryos- Radial cleavage, Indeterminate cleavage and blastopore become the tail end.

Explanation:

Chordates and echinoderms show similarities in their embryological development-

1. Radial cleavage: in there 8 cell stage has 2 different tiers of cells, 4 cells each. Each cell directly above or below another.

2. Indeterminate cleavage: cells can develop into an entire embryo if separated in an early stage.

3. Blastopore turns into the tail end or posterior end except for few molluscs and other protosomes.

You might be interested in
True Or False?
Tema [17]

it would be true by it causes the earth to heat up or cool down so your answer is true

6 0
3 years ago
A nurse preparing a sterile field knows that the field has been contaminated when
german
- A cotton ball dampened with sterile normal saline is placed on the field
- A nurse turns to address the patient's question concerning the procedure
- The procedure is postponed for 30 minutes to accommodate the patient

Hope this helps :)
3 0
3 years ago
In the image above, what lettered section(s) represents 1 chromosome with 2 sister chromatids?
White raven [17]

The correct letter that depicts 1 chromosome with 2 sister chromatids is the letter C.

<h3>What is a chromosome?</h3>

A chromosome is consist of two chromatids. The two chromatids are joined together by a structure known as the centromere.

The two chromatids of the same chromosome are referred to as sister chromatids.

Chromosomes have 2 arms depending on the location of the centromere. When the centromere is skewed to a particular side, the chromosomes will have longer and shorter arms.

Depending on the location of the centromere, chromosomes can be acrocentric, telocentric, metacentric, or submetacentric.

Thus, looking at the diagram, only C depicts the true image of a typical chromosome.

More on chromosomes can be found here: brainly.com/question/1596925

#SPJ1

7 0
2 years ago
How do nucleotides and hydrogen bonds affect the structure of dna
Svetlanka [38]
DNA is a group of nucleotides that are linked together. The hydrogen bonds are responsible in making the double helix structure stable. The two strands of DNA are linked and stays in a stable shape because of the hydrogen bonds located between adenosine and thymine base pairs. Three hydrogen bonds are between cytosine and guanine.
3 0
3 years ago
A country is likely to have a low carrying capacity if??
mamaluj [8]

Carrying capacity refers to the population size in which an environment can sustain, given also the resources within it. A country may have low carrying capacity if these available resources can no longer support the population, which can decline the survivability.

3 0
3 years ago
Other questions:
  • _____ traits are to allport as _____ traits are to cattell
    11·1 answer
  • Valcanoes are_____found where two places meet.<br><br> A.never<br> B.rarely<br> C.often<br> D.always
    8·1 answer
  • Which statements accurately describe stars?
    12·1 answer
  • In order for multicellular organisms to maintain homeostasis
    7·2 answers
  • In the diagram of the earths interior, where does the material that forms volcanoes originate
    8·2 answers
  • Define what diffusion is
    12·2 answers
  • If you placed a letter g under a microscope, how would the image look in the field of view?
    7·1 answer
  • What is the elevation of the X on the topographic map shown below
    12·1 answer
  • What is the primary goal or purpose of cellular respiration?
    9·1 answer
  • (pic attached) can someone please help me and give an explanation
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!