In what type of climate do trees produce winder rings?PLEASE HURRY IN A TEST

What was the land like over 500 million years ago? what was under the sea?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?