Basically they say "null hypothesis" according to source:
http://www.statisticshowto.com/what-does-it-mean-to-reject-the-null-hypothesis/
Answer:
The correct answer is methane . Nature constitutes most of the substances made up of organic compounds. These compounds have carbon atoms attached with hydrogen atoms with a chemical bond (very few compounds may not have this bond).
Answer:
birch
Explanation:
because they easily germinate hence early succession
Answer:
Found within wet and dry tropical forests, it grows in a variety of soil types. Since the 1500s, mahogany has been a prized timber product—a building block for high-quality furniture and musical instruments—valued for its deep reddish color, durability, and beauty
Explanation:
Answer:
Homologous structures provide evidence for common ancestry
