Looking at evolution in detail, this thorough worksheet has complex questions requiring details and explanations of natural selection and diversity. Various examples of biological characteristics are available, and students choose the...

In this understanding evolution worksheet, 9th graders define homology and analogy. Students compare and contrast similar structures in several given species.

In this evolution worksheet, students will determine the evolutionary relationships among organisms using cladograms and phylogenetic diagrams. This worksheet has 13 short answer questions and 3 multiple choice questions.

In this early primate worksheet, students will read information about the fossil evidence of the earliest primates. Students will complete 3 short answer questions based on their reading.

In this biology worksheet, students look for the words that are related to the theme of the worksheet. They also work on the skills of spelling and word recognition.