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Agnatha is a superclass of fish that are characterised by their lack of a jaw as opposed to the presence of a jaw found in most modern fish. The surviving two classes are hagfish and lampreys.
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What is the most primitive type of bacteria?
Archaebacteria
What geological period has fossils of the most primitive life forms?
20,000 b.c.
Which is the most shocking fish?
torpedo ray is the most shockin fish?
From which geologic era are fossils most commonly found?
balls
What Minerals that contain an element combined with oxygen?
The class of minerals called carbonates contain carbon and oxygen. One of the most common carbonate minerals is calcium carbonate, commonly called calcite.
Is the cartilaginous fish is the most primitive group of fish?
It is as primitive as a cave man.
To which class do most fish belong to?
I have just been learning about the phylum 'Chordata' in class. Most fish are in the class called 'Fish'. Pretty simple, and i hope you find this useful!
In what clade do most modern fish belong to?
Most of the fish belong to the class called class Chrodata. Examples of this type of fish include tilapia, Nile perch and the cat fish.
What is the difference between primitive fish and the most advanced types?
primitive fish are ones that have more skeleton weres advanced types tend to be more of muscles
What type of fish are sharks and skates?
Along with rays, they make up the family Chodrichthyes, fish with skeletons of cartilage. They are among the most primitive of fish.
The most primitive vertebrates are members of the group of a jawless fishes b amphibians c artilaginous fish d birds e bony fish?
A: jawless fish
What are the animals that do not mate bodily?
All primitive soft-bodied animals that live in the sea. Most fish, most arthropods and quite a few insects.
What is the fourth chamber of a fish's heart known as?
Most fish have only two heart chambers.Amphibians and some types of primitive fish have four heart chambers, and the fourth one of these is known as the conus arteriosus.
What class of vertebrate has the most species?
Osteichthyes, the bony fish class, has over 30,000 species.
What is a primitive cell?
when constituent particles are present only on the corner positions of a unit cell , it is called as Primitive unit cell .
What is the superlative form of the word primitive?
most primitive
What criteria could you use to determine the most primitive protist?
The most "primitive" protist in the Kingdom Protista would be the more ancestral protists. One major group of protists called the Excavates (which include the Diplomonads and the Parabasalids) are considered by some scientists as the most "primitive" because it lacks a mitochondria while other protists have mitochondria.
