Hi there! I believe the answer is:
D. An explanation of natural events that is well supported by scientific evidence
I hope this helps :)
Answer:
Metric ruler
Explanation:
You need to measure length, which is exactly what a ruler measures. The other option measure other things, like liquids or temperature.
The central nervous system by sending messages from the brain through the nerves that go to your spine.
The answer for this one is b) Looping of DNA
There cannot be more carnivores than herbivores because the carnivores eat the herbivores. If there wasn't enough herbivores to eat, then the carnivores would eventually become extinct.
