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Yes, there was. If there wasn't, no life on Earth (including the dinosaurs) would exist. It is believed, however, that the relative amounts of atmospheric gasses during the time of the dinosaurs may have been notably different than they are now, but there is no question that oxygen was part of earth's atmosphere at that time.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoThe oxygen levels were 30% higher on average than they are today. Note that because the Jurassic lasted for over 50 million years, oxygen levels may have varied somewhat over that time, and 30% higher than today is an average.
Wiki User
∙ 11y agoYes there was, cus those are dinosaurs and they have bug lungs and needed more oxygen in case, but I heard that there was no air and that a blue-green algae made air and then plants started growing
Wiki User
∙ 10y agoDuring the dinosaur age, levels of carbon dioxide were higher than they are today. The average global temperature was also higher. During the first period of the Mesozoic, the Triassic, oxygen levels were, on average, only 80% of that of today. In the Jurassic and Cretaceous, oxygen levels were higher than they are today.
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Why were dinosaurs so big?
There was much more food back then, so they ate more and grew.Not all dinosaurs were huge. Many were quite small. It is believed that during the Mesozoic, earth was at its highest point of life sustaining ability. The high oxygen levels allowed truly massive animals to evolve.
Why you breath more during excersise?
because your body is using more oxygen so it needs to get more oxygen
Do you get more oxygen from trees or the ocean?
From trees , they release co2 during breathing and release oxygen during photosynthesis
Did snakes have feet when dinosaurs were alive?
There were ancestors of snakes that had feet during the time of the dinosaurs. But the mere fact that they had feet meant that they would be considered snakes. Instead they were more like modern lizards. The first snakes appeared during the Cretaceous period when dinosaurs still dominated the earth.
What gas do you need more of during exercise?
Oxygen.
Were Jurassic dinosaurs bigger than triassic dinosaurs?
Yes. This is mainly due to the sudden increase of vegetation during the Jurassic as well as the fact that the vegetation was getting much abundant, with more vegetation comes more oxygen. this sudden increase of vegetation allows herbivores of that time to grow in size (Eg. Protosauropods from the Triassic to Sauropods like Diplodicus and Brachiosaur in the Jurassic). With larger Herbivores comes in larger carnivores, the once abundant Ceratosaurus has been reduced due to competition with larger and more advance carnivore like Allosaurus. So yes Jurassic dinosaurs were indeed bigger and ADVANCE due to larger vegetation and increase in oxygen.
When was the dinosaurs around?
Non avian dinosaurs appeared during the Carnian stage of the Triassic period about 220 million years ago. They diversified in the Jurassic and even more in the Cretaceous, but they died out 65.5 million years ago. All non avian dinosaurs lived during the Mesozoic era, but birds, which are a group of dinosaurs, continue to exist today.
Are dinosaurs still roaming the earth?
No, there were no people in the time of the dinosaurs. Humans came about 3 million years ago and by then all the dinosaurs were extinct.Dinosaurs lived during the late Triassic period, 280 million years to the late Cretaceous, 65 million years.Read more: When_did_the_dinosaurs_dominate_the_earthRead more: Did_dinosaurs_dominate_the_earth
Was there more plant dinosaurs then meat eating dinosaurs?
yes most dinosaurs ate plants
What is the population of dinosaurs of each species added all up together?
It is hard for scientists to determine how many dinosaurs roamed the Earth during their time. Some say there were more than 10,000 species including birds before the dinosaurs became extinct.
What effects does exercise have on Arteriovenous oxygen difference?
Arteriovenous Oxygen difference measures the amount of oxygen extracted by the tissues from blood during one trip around systemic circulation. During exercise, cells consume more oxygen, therefore, more oxygen goes from the arteries to the cells and less oxygen circulates in the veins. This means that the Arteriovenous Oxygen difference increases with exercise.
Why do more blood flow during exercise?
Because during exercise more oxygen is required , so more blood is pumped to meet the requirement.
