Approximately 1 week after conception, the developing organism is called a(n):

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

There are multiple lines of evidence that provide support for common ancestry and evolution. write 3-4 paragraphs describing at least three of them in detail. provide at least one example for each line of evidence.