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VLD [36.1K]
3 years ago
12

What are tube feet?

Biology
1 answer:
Margarita [4]3 years ago
6 0

Answer:

Explanation:

(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.

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Progressive degeneration of the retina that affects night and peripheral vision is known as?
natka813 [3]

Progressive degeneration of the retina that affects night and peripheral vision is known as retinitis pigmentosa.

<h3>What is retinitis pigmentosa?</h3>
  • A collection of uncommon eye conditions known as retinitis pigmentosa affect the retina.
  • Retinitis pigmentosa causes the retinal cells to gradually deteriorate over time, resulting in visual loss.
  • RP is a hereditary condition that affects people at birth.
  • The term "retinitis pigmentosa" (RP) refers to a group of illnesses that affect the retina's light-sensitive cells and impair vision.
  • There is currently no medication to stop the course of the disease, nor is there a cure.
  • Night blindness and tunnel vision are symptoms.
  • Retinitis pigmentosa has no specific treatment.
  • However, using UV sunglasses to protect the retina in your eyes may help postpone the onset of symptoms.
  • For people with very advanced disease and severe visual loss, a retinal prosthesis (artificial retina) has been developed.

Learn more about retinitis pigmentosa here:

brainly.com/question/20593465

#SPJ4

6 0
1 year ago
In a sample of double-stranded DNA, 10% percent of the nitrogenous
Alchen [17]

Answer:go on google to search it up

Explanation:

4 0
2 years ago
Hello can you answer this question? Why is language one of the most influential legacies a culture or civilization can leave beh
yanalaym [24]

Answer:

The legacy of the Roman Empire has been varied and significant, comparable to that of other ... One main legacy is the Latin language of ancient Rome

Explanation:???

4 0
2 years ago
How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater
Sveta_85 [38]

Answer: Contractile vacuole of amoeba will shrink/contract when the organism is placed in sea water.

Contractile vacuole is a subcellular structure ( mainly found in protists) that is involved in the regulation of water quantity inside a cell.

As we know that water always flow from a hypotonic ( where solute concentration is less) to a hypertonic ( where solute concentration is more) solution. Sea water is a hypertonic solution as the concentration of salt is very high. Therefore, in this case, water will flow from contractile vacuole to outside of the organism.

Thus, contractile vacuole of amoeba will contract as it will lose water when placed in sea water.

8 0
2 years ago
Why would it be pointless for reptiles to sit on their eggs to incubate them as birds do? (2 points) Reptiles have teeth with wh
Alika [10]
The correct answer is: 'Reptiles are ectotherms and cannot raise their body temperature above that of the environment'. Birds sit on their eggs to incubate the eggs as the body temperature of the adult bird warms up the eggs. Birds are <span>endothermic homeotherms, and maintain a constant body temperature. In contrast </span>reptiles <span>are ectothermic poikilotherms, and their body temperature depends on the temperature of the outside environment.</span>
6 0
3 years ago
Read 2 more answers
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