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agnatha excrete(expulse non-needed matter) by using a propulsory system called the anal ejector. they usually excrete this matter during copulation in the form of sperm wikipedia has this answer too
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Does agnatha have ectoderm or endoderm?
Agnatha are ancient jawless fish that include lampreys and hagfish. They are also probably the earliest vertebrates and have ectoderm.
What are examples of agnatha?
Agnatha is a superclass of the phylum Chordata. It contains the jawless fish. Two common examples of this would be the lamprey and the hagfish.
What are the four steps of excretion?
Filtration, reabsorption, secretion, and excretion.
Is defined as the discharge from the body of metabolic waste products?
excretion
Which part of the plant is responsible for excretion?
the leaf is responsible for the excretion of the plant
Are Agnatha internal fertilized?
Externally
What are examples of agnatha?
Agnatha is a superclass of the phylum Chordata. It contains the jawless fish. Two common examples of this would be the lamprey and the hagfish.
Does agnatha have ectoderm or endoderm?
Agnatha are ancient jawless fish that include lampreys and hagfish. They are also probably the earliest vertebrates and have ectoderm.
What types of body covering do Agnatha have?
skin
What does the word agnatha mean?
without jaws
What are three main groups of fishes?
Class Agnatha
How do agnatha breath?
by the gill slits
How do class agnatha breathe?
with gills; they're fish!
What are the 3 characteristic of agnatha?
I don't know but i will do some research...
What is agnatha?
jawless fish. not very common today, but they were in the past.
Do agnatha have Bone?
no they have large bonelikes structures called the stonnes.
Why are fish from the class Agnatha considered primitive?
Agnatha means 'no jaws', and they really don't have jaws, although they do have teeth. They also have no stomach, and no boney skeleton. Their skeleton is cartilagineous, like the elasmobranchs.
