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
Phoenix [80]
3 years ago
13

Which structure is lacking in members of phylum echinodermata?

Biology
1 answer:
Juli2301 [7.4K]3 years ago
7 0

Members of the phylum Echinodermata lack the following body system:

  • Excretory organ,
  • Brain,
  • And also no respiratory pigment in their blood

Most of the common marine invertebrates that you see in the aquarium or on the beach all belong to the phylum called Echinodermata.

<h2>Further Explanation</h2>

Some of the examples of these marine invertebrates animals include sea urchins, starfish, sand dollars, basket stars, brittle stars and many more.

Echinodermata is a word that is derived from the Greek word “spiny fish” and this word best describes these animals because most of them are covered with bumps, for example, sand dollars and sea cucumbers are covered with one form of bumps or another.

However, Echinodermata bodily system lacks the following:

  • They do not possess a specialized excretory system
  • They lack brain
  • Their blood does not contain respiratory system
  • They also lack excretory organ and diffuses wastes out into the outside environment through their respiratory surfaces.

These invertebrate animals are marine species: they live only in salt water and there are none of their classes that reside on the land.

They are found almost at every ocean and the largest of animals that do not reside either on land or freshwater.

Most of these animals can reproduce sexually and can also restore or regenerate some of their lost body part such as the limbs and tissue.

LEARN MORE:

  • Which characteristics of the skeleton of members of phylum echinodermata is unique compared to the typical skeletons of members of clade protostomia brainly.com/question/13897344
  • Phylum echinodermata  brainly.com/question/4519070

KEYWORDS:

  • phylum echinodermata
  • fresh water
  • marine habitat
  • starfish
  • sand dollars
You might be interested in
How many people are diagnosed with skin cancer in the U.S. annually
fiasKO [112]

Current estimations are that one in five Americans will develop skin cancer in their lifetime. It is estimated that approximately 9,500 people in the U.S. are diagnosed with skin cancer every day. Which adds up to over 3.3 million persons each year.

Hope this helps! :)

4 0
3 years ago
What does that leave as the source for the energy that is now in the fold molecules?
Ivahew [28]

Answer:

Explanation:

chaperonins

Members of the Hsp60 family (also called chaperonins) facilitate the folding of proteins into their native conformations. Each chaperonin consists of 14 subunits of approximately 60 kilodaltons (kd) each, arranged in two stacked rings to form a “double doughnut” structure

5 0
2 years ago
Which best describes the lower body structures of humans and chimpanzees?
Zarrin [17]
The human foot has two arches, but the chimpanzee foot has only one. 
3 0
3 years ago
Read 2 more answers
How many complete molecules of dna do you begin with in dna replication?
RSB [31]

Answer:

Well you began with 2 DNA replication

Explanation:

4 0
3 years ago
In the ocean how does water temperature change as depth increases
tatuchka [14]
When the upper water layers warm in the summer months, they become separated from deep water by a transition zone known as a thermocline. In a thermocline, the temperature decreases rapidly with small increases in depth. This phenomenon linking temperature change with depth is called temperature stratification.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is biology and things related to it​
    9·2 answers
  • Why were fungi once classified as plants? What findings led to their reclassification into their own kingdom?
    14·1 answer
  • Cross<br> . Where life most likely originated.
    12·1 answer
  • Which region of the sun is brightest in x-ray and uv images?
    15·2 answers
  • An object has a kinetic energy at 500 J and a mass of 30 kg. How fast is the object moving?​​
    7·1 answer
  • While traveling through the rain forests of Peru, you are introduced to a rare and exotic plant. You discover that it contains a
    14·1 answer
  • Sea grass grow on the ocean floor in shallow areas runoff from the land into the ocean can cause the waters to become cloudy. cl
    6·1 answer
  • Subunits of skeletal muscle fibers that are composed of sarcomeres are called ________. Subunits of skeletal muscle fibers that
    5·1 answer
  • Which enzyme attaches the ozaki fragments?
    11·2 answers
  • Once the newly made spring has been hardened, what temperature should it be drawn to?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!