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What are fin rays?
Ray-finned fishes are a class of bony fishes called Actinopterygii. Their fins contain spines or rays. A finmay contain only spiny rays, only soft rays, or a combination of both. If both are present, the spinyraysare always anterior.
Do shark fin have fin-rays?
yes it dose
Why some fishes have spiny dorsal fin only and some have soft dorsal fin only and others have both?
Because that's ahow god made them
What is an adipose fin?
An adipose fin is a soft, fleshy fin found on a fish behind the dorsal fin and ahead of the caudal fin.
What is the function of soft dorsal fin?
you have to answer my question
What is the difference between soft x-rays and hard x-rays?
Soft X-Rays have lower frequency and energy (125ev), than hard X-Rays,(125kev).
Why do they need a soft dorsal fin?
dolphins need a soft dorsal fin because of their way of swimming. If they were to have a hard, sharp, stiff or even ruff fin it would put weight on them and e tilt them to the side which then would interfere with their other fins.
Which have more frequency hard X ray or soft x rays?
Hard x-rays have a higher or faster frequency than soft x-rays.
How long are manta rays commonly?
The manta rays are up to 14 feet in length, while their fin span is 20 feet.
What is the difference between Soft X-ray Absorption Spectroscopy and Hard X-ray Absorption Spectroscopy?
The 'soft' and 'hard' refer to the energy of the x-rays used to perform the spectroscopy. Hard x-rays are higher energy x-rays than soft x-rays. Where to draw the line for when an x-ray stops being 'hard' and becomes 'soft' is rather arbitrary but most people would agree I think that x-rays of energy ~ 1500 eV and less are 'soft' x-rays and above ~ 2500 eV are 'hard' x-rays.
What is the wave length os soft x-ray and hard x-rays?
Hard x-rays have wavelengths below 0.2nm-0.1nm .Soft X rays have wavelengths above.
What is an actinotrichium?
An actinotrichium is a hairlike fibre in the fins of fish larvae which develops into fin rays.
