Question
What caused insects (and reptiles later) to become so large in the Paleozoic? high levels of carbon dioxide gas high levels of oxygen gas high levels of methane gas high levels of nitrogen gas
Answer
4.1
(294 Votes)
Rebecca
Master · Tutor for 5 years
Answer
B
Explanation
The Paleozoic Era refers to a fundamental interval of time during Earth's geological history, spanning from roughly 542 million to 252 million years ago. During this time, there were conditions that facilitated the substantial growth of insect and reptile species. Biology, with its focus on life and living organisms, encompasses situational topics like this which revolve around evolution, habitat climates, and extinct species. Accordingly, this question originating from biology concerns multiple-choice speculation regarding why insects got so large in the Paleozoic Era. It specifically addresses environmental gases and their possible effects on bio-growth. The options provided include high levels of carbon dioxide gas, oxygen gas, methane gas, and nitrogen gas. Out of these, high levels of oxygen primarily answer the question. Notably, this environment characteristic, concealed in historical records, is recognized as one of the factors favoring the development of insect size. More oxygen allows for more efficient respiration and metabolism, thereby increasingly nurturing growth in insects and reptiles.