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it is in the water
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What is the main difference between Agnathans and Chondrichthyes?
The main difference between Agnathans (jawless fish) and Chondrichthyes (cartilaginous fish) is the presence of jaws. Agnathans lack jaws, while Chondrichthyes have well-developed jaws. Additionally, Agnathans have a cartilaginous skeleton, while Chondrichthyes have a skeleton made of cartilage.
How much do agnathans weigh?
Agnathan means a jawless fish. There are many different types of agnathans, and each one has a different weight.
Lampreys and hagfishes are the only remaining?
agnathans
What are some adaptations of agnathans?
parasitism, pineal (sp?)(third eye).
What is the scientific name of agnathans?
That is the scientific designation for " jaw-less fish. "
What feature of agnathans evolved into jaws in early jawed fishes?
Gill supports
Is a hagfish a ectotherm?
Yes , since a hagfish is a Agnathan and all Agnathans are ectothermic .
What has the author Victor Voichyshyn written?
Victor Voichyshyn has written: 'The early Devonian armoured agnathans of Podolia, Ukraine =' -- subject(s): Fossil Agnatha, Paleontology
How do angnatha breathe?
Respiratory system Agnathans are characterized by seven pairs of gill pouches. The bronchial arches supporting the gill pouches lie close to the body surface.
Classification of fish?
Fish are classified into three main groups: jawless fish (agnathans), cartilaginous fish (Chondrichthyes), and bony fish (Osteichthyes). Each group is further divided into various orders and families based on characteristics such as skeletal structure, scales, and fins. Taxonomic classifications for fish typically include factors like morphology, habitat, and genetic analysis.
The place where an organism lives is called its?
habitat, niche, environment are all used to describe this.
An enironmental area inhabited by a particular organism is its?
habitat
