Microscopic life in the soil can play many roles, both positive and negative. Which of the following combinations of soil life would usually be the best choice to ensure long-term sustainable agriculture?
O nematodes and symbiotic bacteria
O microscopic non-animal lifedhylus earthworms
O sterile soil free of nematodes
O all broad classes of microbiota in balance

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

The image shows a sandstone formation with visible bands of different colors. what do the bands indicate about how this sedimentary rock was formed? choose two answers. a). the rock was made from more than one material. b). water was absent during the compaction and cementation process. c). sediments and other matter were deposited in layers before lithification. d). the rock was stretched horizontally by the pressure from surrounding rocks. e). layers of hot liquid in the rocks cooled and solidified at different tempatures

Laurels suv was detected exceeding the posted speed limit of 60 kilometers per hour how many kilometers per hour would she have been traveling over the limit if she had covered the distance of 10 kilometers in 5 minutes whats the speed distance and time