Invasive species are organisms that have been introduced to new areas and have been able to spread and reproduce. what sorts of problems can they cause? a. they become native species. b. they compete with native species and disrupt the ecosystem. c. they generally reproduce more slowly than other species. d. they never spread beyond their original location, so they to fail to adapt.

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

What is the approximate time of death of the body temperature is 29.4 degrees celsius