Production can be increased in high nutrient, low chlorophyll (HNLC) regions of the ocean by . a. more sunlight b. adding more chlorophyll c. reducing the nutrient supply d. adding micro-nutrients or trace elements such as iron e. heating the surface waters

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Which statement explains how gravity and intertia work together

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase