Answer:
Hydrogen
Explanation:
hydrogen couldn't form until the universe had cooled enough to allow their nuclei to capture electrons, about 380,000 years after the Big Bang, Within about 3 minutes after the Big Bang, conditions cooled enough for these protons and neutrons to form hydrogen nuclei.
Answer:
produce energy without using fossil fuels.
Explanation:
People can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.
That would be B. Cell Wall
Hope this helps.
Answer:
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
Writers note:
Who ever gave you that question is a horrible being. The digestive tract is quite complex. I hope I helped in some way; sorry if I confused you.
Due to the _ of the first small population on one of the island's , the populations _ could have been different from their continental fruit fly ancestors.
answer:
There is a hypothesis that proposes that the different Hawaiian drosophilids diverged from a sole common ancestor that once colonized the Hawaiian Islands, then known as the Hawaiian Scaptomyza who subsequently moved back to different continents.
However, by newly determining the DNA sequence information of 11 kinds of non-Hawaiian Scaptomyza species and analysing it along with existing sequence information, the researchers reconstructed the phylogeny. This study theorizes that Hawaiian drosophilids had plural continental ancestors that independently migrated to Hawaii at different times.
