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Jawless fish.

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Q: The first classes of animals to derive a backbone were the?
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First classes of animal to derive a backbone were the?

D) Fishes


What is the first division in the animal kingdom?

Vertebrates and invertebrates... V = Animals with backbone IV= Animals without backbone


Is backbones considered by scientists when classifying organisms?

Yes. The first classification under animal describes if an animal has a backbone or not. Animals with a backbone are Vertebrates, and animals without a backbone are Invertebrates.


What instrument is the backbone of a jazz band?

the first trumpet is


What is the ISP backbone?

first of all we have to say that , what is the backbone it means the medium of that is connected to computer to each other (cable) is that and the ip backbone means the lan card or ethernet card,,,,,,,,,,,,.............. ok


Why was the and ldquoReading and Writing Classes and rdquo at first a great success but by the end of the book they had failed Animal Farm.?

The "Reading and Writing Classes" were successful at first in Animal Farm because they empowered the animals and allowed them to educate themselves, but they ultimately failed because they were used by the pigs to spread propaganda and manipulate the other animals. The pigs twisted the purpose of education to maintain control and oppress the others.


Which octet of an IP address is used to derive the Class?

The First Octet is used to derive the Class of an IP address...... Eg: 192.168.1.1------ The IP class for this IP add is CLASS "C" as the first Octet is 192.


Why is the symbol Br for bromine?

It derive from the first 2 letters of the word "Bromine".


Is classes' or class's first alphabetically?

class is before classes.


What era did animals with a backbone first appear?

horses foxes and all other mammals have backbones. Also, birds and fish also have backbones.


How do you know an animal is part of the animal kingdom?

first check if it is a vertabrata (backbone) or invertabrata (no backbone) then check if it is in a subgroup if it is then it is in the animal kingdon if not then it is not in the animal kingdom


How can you identify a invertebrate?

Arthropods are invertebrates (animals without a backbone) with jointed legs and a hard exoskeleton (external skeleton). Within the arthropod group are insects (six legs), arachnids (eight legs), crustaceans (variable number of legs) and myriapods (millipedes and centipedes - many legs).