What biological effects does space travel have on humans, animals, and plants?
Try looking up specific interests on the SpaceBio site found at http://www.spacebio.net. This site contains information and photos, diagrams, etc. on all these topics. For information about the human body in space, visit the on-line textbook found at http://www.nsbri.org/HumanPhysSpace/index.html published by the National Space Biomedical Research Institute. For photos and information about specific missions, try the Life Sciences Data Archives found at http://www.lsda.jsc.nasa.gov. The best way to find the information you want is to use the “advanced search” function and pick a species or topic under the “research area”, “experiment”, or “keyword” scroll down menus. For example, under “photo gallery” then “research area”, pick “plant biology” and get a series of photos of plants, experiments, and astronaut activities related to growing plants in space.