1.) Ms. Newkirk uses carbon-14 within a fossil to determine the exact age
a. Relative
b. Absolute

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

What would happen if the krill were removed from the food web

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.