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
valina [46]
2 years ago
9

The only phylum in the group Parazoans is ________. A. Porifera B. Cnidaria C. Lophotrochozoa D. Ctenophora E. Ecdysozoa

Biology
1 answer:
ludmilkaskok [199]2 years ago
7 0

Answer:

A. Porifera

Explanation:

Parazoan is a sub-kingdom of animal consisting only of the phylum of sponges (porifera), having two tissue layers only and lacking a nervous system and true digestive cavity.

They have certain characteristics like: sponges are marine, but there are some freshwater sponges that enjoy their water without salt. Most sponges do not have any type of symmetry, but some are radially symmetrical and they come in a variety of shapes, colors, and sizes, they are multicellular, heterotrophic and lack cell walls. Unlike other organisms, sponges lack true tissues and organs.

The mesohyl functions as an endoskeleton in most sponges, and is the only skeleton in soft sponges. This mesohyl is stiffened by mineral spicules, by spongin fibers or both.

You might be interested in
Which type of cell is created during meiosis
stellarik [79]
The answer is sex cells or gametes
6 0
3 years ago
Read 2 more answers
What percent of fresh water is in lakes, streams, and rivers
Orlov [11]
Around 3-4% is the answer.
8 0
3 years ago
Condons from a unit the genetic code that determines a specific
Softa [21]
The answer is amino acid.
4 0
2 years ago
Most adult echinoderms have which of the following? A. two-part bilateral symmetry B. five-part bilateral symmetry C. five-part
iVinArrow [24]
Answer:  [C]:  "five-part radial symmetry" .
_____________________________________________________
5 0
3 years ago
Read 2 more answers
There are three categories, DNA, RNA, or Both
Brut [27]

Answer:

transcription used dna because the mRNA is built on the DNA template . translation used RNA replication dna

8 0
2 years ago
Other questions:
  • Which types of tissue make up the lungs?
    7·2 answers
  • 4. What are tandem repeats?
    11·1 answer
  • One method for separating polypeptides makes use of their different solubilities. The solubility of large polypeptides in water
    13·1 answer
  • 7 + 7 + (–1) = <br><br> A. 13 <br> B. 10 <br> C. 16 <br> D. 7
    8·1 answer
  • Overall, what does aerobic cellular respiration do for the organism?
    6·2 answers
  • Without heat from the Sun, the water cycle would...
    7·2 answers
  • If your body gets too cold, sensory neurons detect the change and send a message to your liver.
    12·1 answer
  • Name the part of the blood in which most carbon dioxide is transported.​
    11·2 answers
  • Why do carbohydrates have to be broken down into glucose by the body?
    12·1 answer
  • Which class of mollusks contain octopi and squids?<br> Anthozoa<br> Gastropoda<br> Cephalopoda
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!