Microorganisms that entered the flask before it was sealed
Bacteria Cant Come Out Of Nowhere It Needs An External Source
Answer: gnetophytes
Explanation:
This is the only division in the gymnosperms that closely resembles the angiosperms (flowering plants) by carrying out double fertilization. Two groups in the gnetophytes division: Ephreda and Gnetum carry out this form of fertilization
The answer is; pioneer species
These pioneer species have adaptations such as minute roots that enable them to grow on rocks, with little nutrients, and need no soil. This is why they are able to colonize new barren land. They are able to break down rocks to soil and give an opportunity for higher plants to later colonize the environment after time.
Make a test of experimental groups for flowers with warmer soil and another with regular soil and to be sure cold soil.