Mesosaurus
They have been not able to spread easily across land because it better adapted the environment and stayed there in water.
<h3>What are Mesosaurus ?</h3>
These creatures were ancient lizards that looked a bit like small crocodiles, with narrow heads and long tails. They had webbed feet and grew to about 1 meter long
- The Mesosaurus might have gone extinct by the end of the Early Permian period. As their fossils were discovered on both sides of the Atlantic Ocean, the species must have become extinct due to continental drift.
- They propelled themselves by mianly moving the large fin on their tail in a side to side motion. Mosasaurs were also covered in smooth scales which were very dark in color.
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B) cytosine is found in both dna and rna
Answer: Amphibians and water animals.
Explanation:
Answer:
b. False
Explanation:
A scientific theory must have strong support from testable facts that are confirmed (or rejected) by observational and/or experimental procedures. The scientific method is a rigorous process that consists of arising a conjecture (hypothesis) which can be subsequently used to make predictions from its logical consequences, and finally to obtain information from empirical observations/experiments in order to obtain a conclusion about the veracity of the scientific claims (i.e., a hypothesis must be testable). In consequence, a scientific theory can not be based only on 'light' conjectures, but trustworthy observational data from the real world.