The insertion of the pectineus muscle is and on the . posterior; femur posterior; pubis anterior; femur anterior; pubis

*will mark brainliest* which of the following best describes a viral infection, such as the common cold? a. virus grow and develop in the body. b. virus are living organisms. c. viruses require host cells in the body. d. viruses can be treated with antibiotics.

During binary fission, what events must occur before the cell splits into two new cells?

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.