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
Alinara [238K]
3 years ago
8

Why are echinoderms more advanced than arthropods and mollusks?

Biology
1 answer:
mihalych1998 [28]3 years ago
4 0
They have internal skeletons which cover their skin. The body of an echinoderm seems little more than a skeleton of tiny plates and water. They don't use large muscles working on large body parts like many other animals. Instead they move, feed and breathe with a unique water-vascular system ending in hundreds of water-filled tube feet.
You might be interested in
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
gregori [183]

Answer:

c

Explanation:

6 0
2 years ago
position vs time for two cars which statements best describe the motion of car a and car b check all that apply
jekas [21]

Answer:

Option 1, 2, 5

Explanation:

Options for the question

  1. car a and car b are both moving toward the origin.
  2. car a and car b are moving in opposite directions.
  3. car a is moving faster than car b.
  4. car a and car b started at the same location.
  5. car a and car b pass each other at the crossover  point on the graph.  time (s)

Solution -

The motion of any object is represented by  position-time In such graphs the position of an object is fixed for any starting point on the y-axis and time on the x-axis.

The slope of such curves determine the velocity of the object at all its position within the graph. The steeper the slope is, the faster the the object is moving.

Hence, the following statements are correct

Option 1, 2, 5

3 0
3 years ago
NEED HELP ASAP!!!!!!!!!!!
ipn [44]
Water is the most abundant molecule in the Earth’s atmosphere is false.
8 0
2 years ago
Why does Juliet ask Romeo not to swear his love's allegiance by the moon?​
lukranit [14]

she asks him not to swear by the moon because the moon is not constant enough.

H O P E  T H I S  H E L P E D <3

3 0
3 years ago
Read 2 more answers
How would the presence of cilia, flagella, and pseudopods improve the chances of survival of a unicellular protist?
RUDIKE [14]

Answer:

i really dont know but I need the answer too  :(

Explanation:

3 0
2 years ago
Other questions:
  • PLEASE HELP ME!!!!!!!
    11·1 answer
  • Oligomycin and cyanide both inhibit oxidative phosphorylation when the substrate is either pyruvate or succinate. Dinitrophenol
    5·1 answer
  • Imagine you are listening to a speech by a member of the National Consumers’ League. Which issue do you think they are protestin
    12·2 answers
  • Weather is made up of a variety of conditions in the atmosphere. It includes temperature, or the amount of ____ in the air, as w
    11·2 answers
  • Write a hypothesis about the effect of the red light on the population of light red walking beans. Use the "if . . . then . . .
    10·2 answers
  • Conservation efforts have resulted in restoration of some wildlife habitats. Please select the best answer from the choices prov
    10·2 answers
  • Which of the following is true of the light- dependent reacionbut not of the light independent reaction?
    15·2 answers
  • I need help with this fast plz<br> write the meaning of the words
    9·1 answer
  • True or False. Every somatic cell in your body has the same copy of DNA Explain your reasoning Answer:
    5·2 answers
  • Describe the outer core: Include the thickness (depth), what it is made of, whether it is solid or liquid, and one fact about it
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!