©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
Bio 1500 Schul and Bush Test 1 Exam
Questions And Answers |Latest 2025 |
Guaranteed Pass
Order odanata characteristics - Answer✔Dragonflies
First fossils found 325 mya (Carboniferous)
First 3 years of life --> water
Lay eggs and catch insects in flight
Meganeura: 3 feet long wingspan (t. 6 in.), 150 grams (t. 1 gram)
Main difference between animals today and during Carboniferous? Why? - Answer✔During
Carboniferous animals were much larger due to higher oxygen concentration
What are two hypotheses as to why dragonflies were bigger in the Carboniferous than they are
today? Evidence from EarthViewer? - Answer✔Increased oxygen concentration and a lack of
aerial predation/competition. EarthViewer corroborates that oxygen levels peaked during the
Carboniferous and afterwords went way down. EarthViewer also corroborates that there was a
lack of biodiversity and therefore aerial predators during the Carboniferous
13.7 bya - Answer✔Universe formed (Big Bang)
4.6 bya - Answer✔Earth formed
3.8 bya - Answer✔First evidence of life
2.5 bya - Answer✔Cyanobacteria found (first organism that used oxygen)
2.0 bya - Answer✔Eukaryotes (containing complex cell organelles)
750-600 mya - Answer✔"Snowball" ice ages
590 mya - Answer✔First animals
230 mya - Answer✔Dinosaurs
150 mya - Answer✔Birds
1|Page
Bio 1500 Schul and Bush Test 1 Exam
Questions And Answers |Latest 2025 |
Guaranteed Pass
Order odanata characteristics - Answer✔Dragonflies
First fossils found 325 mya (Carboniferous)
First 3 years of life --> water
Lay eggs and catch insects in flight
Meganeura: 3 feet long wingspan (t. 6 in.), 150 grams (t. 1 gram)
Main difference between animals today and during Carboniferous? Why? - Answer✔During
Carboniferous animals were much larger due to higher oxygen concentration
What are two hypotheses as to why dragonflies were bigger in the Carboniferous than they are
today? Evidence from EarthViewer? - Answer✔Increased oxygen concentration and a lack of
aerial predation/competition. EarthViewer corroborates that oxygen levels peaked during the
Carboniferous and afterwords went way down. EarthViewer also corroborates that there was a
lack of biodiversity and therefore aerial predators during the Carboniferous
13.7 bya - Answer✔Universe formed (Big Bang)
4.6 bya - Answer✔Earth formed
3.8 bya - Answer✔First evidence of life
2.5 bya - Answer✔Cyanobacteria found (first organism that used oxygen)
2.0 bya - Answer✔Eukaryotes (containing complex cell organelles)
750-600 mya - Answer✔"Snowball" ice ages
590 mya - Answer✔First animals
230 mya - Answer✔Dinosaurs
150 mya - Answer✔Birds
1|Page
