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Which two major groups of fishes evolved from the early jawed fishes and still survive today?
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∙ 13y ago
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Feathers are thought to have arisen from what structure?
reptile scales
What is the use of Otoltih as a tool in characterizing the early life history and dynamics in fishes?
I don't know but I have made earrings out of the otoliths of codfish.
How did early scientists classify organisms?
They spilt them up in groups.
What are two adaptations that enabled early fishes to dominate the oceans?
The ability to lay hundreds of eggs. And probably the fact that they adapt to anywhere because there aren't that many different terrains underwater
What happens when a duck egg breaks before it hatches?
Unfortunately, if a duck eggs breaks before it hatches, the baby duck shall not survive, if in early stages. If the egg breaks right before the duck hatches, the duck may survive.
What feature of agnathans evolved into jaws in early jawed fishes?
Gill supports
How did living and working in groups help early people survive?
living and working in groups help the early people survive because they didnt have to do everything everyone would do a little bit (teamwork).
How did early organism survive without an ozone layer?
There were no organisms before the ozone. Human life was not evolved.
Who were the five groups of early humans?
The five groups of early humans are Australopithecus, Homo habilis, Homo erectus, Neanderthals, and Homo sapiens. These groups evolved over time and shared common ancestors, with Homo sapiens being the only surviving group.
How did living and working in groups help early people to survive?
They could help each other and protect each other.
Why did radical political groups gain support in the early 1903's?
It was in the early 1930s that radical political groups gained support throughout the US. During this time the country was faced with major economical problems and they wanted to survive the Great Depression. Radical political groups provided solutions to dig out of these problems.
What is thought to have evolved from lungs of early bony fish?
The Osteichthyes is evolved from lungs of early bony fish. The fish have many types of evolved.
Why did early groups of people form government a to help them survive b to preserve democracy c to provide leadership opportunities d to encourage the arts?
b
Are mammals evolved from early reptiles?
no they did not they where alive with the reptiles
Early primates evolved for life on the savanna?
Yes
What is the evolution of chickens?
early vertebrate-->early bird-->chicken
How did early man catch fish?
they used to catch fishes with a spear type tool
