Answer:
Fossil steroid and molecular clock evidence suggests that animals originated between 770 and 710 million years ago
Explanation:
They are prokaryotic cells....
Answer:
a. A hypothesis that does not generate a testable prediction is not useful.
Explanation:
In the scientific method, we generate a hypothesis to explain a phenomenon. After this, it is necessary to create a method to test the hypothesis and make predictions. Moving forward, we test this methodology, generating results and reject or not reject the hypothesis. If the hypothesis can't be tested, the scientific method can't be applied.
Answer: The answer is D. There Would be a general decrease in the Ultrviolet radiation experienced by Earth
Explanation: I took the Study Island quiz and i got it Correct