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Answer:
They all came from the big bang.
Explanation:
The experiment must maintain internal and external validity, or the results will be useless. When designing an experiment, a researcher must follow all of the steps of the scientific method, from making sure that the hypothesis is valid and testable, to using controls and statistical tests
A biome is a group of ecosystems which shares the same characteristics. The world is split up into several biomes such as freshwater, marine, desert, forest, grassland, and tundra.
The grassland biomes are the regions which are dominated by grasses, often 3 to 6 feet tall at maturity. They may have an open shrub layer and the climate is temperate or tropical.
40 degrees is the answer brainliest? only if possible tho bro
