Answer:
http://etetoolkit.org/treeview/?treeid=e29a1e3f1e8914f370f5bb2415bbcf32&algid=ce443ed1e53858bf4e11d1e069c7a927
You can view the tree by clicking view tree...
Explanation:
I think that the Ctenophora are the first to diverge from the origin then Calcerea goes for second divergence and it goes straight in the order as provided by your data.
It also shows the organization of evolutionary pathway from simple (Ctenophorea and Calcerea) to complex like mammals (African Elephant)...
Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
Answer:
The correct answer is - D. All rocks were molten in that time period.
Explanation:
The early Precambrian era began 4.6 billion years ago. The formation of eath start from this era with dust and gas. The atmosphere at that time was too hot. It was like hades. The rocks were molten and appear to like an ocean of rocks.
Due to the molten rocks, there are no samples of rock from this area as it was too hot to be formed. There were boiling sulfur and gases were everywhere.
