Plant fossils formed before animal fossils. What does this suggest about their evolution?
Fossils provide important evidence for the evolution of species. What are fossils?
The development of antibiotic resistance is an example of evolution in bacteria. The diagram given shows a simplified process of antibiotic resistance developing in a population of bacteria.
A population of bacteria shows differences in how resistant its individuals are to antibiotics. What term is given to this difference in characteristics?
Which of the following best describes what happened between stages 1 and 2?
Which of the following best describes what happened between stages 2 and 3?
What is the advantageous allele that was passed on in this scenario?