All of the following are direct methods of measuring microbial growth except:
A. a Coulter counter.
B. membrane filtration.
C. viable plate counts.
D. turbidity.
Answer: D. turbidity.
You might also like to view...
Which of the following lists of taxonomic levels is in correct order, from largest to smallest?
a. domain – kingdom – phylum – class b. species – kingdom – family – order c. genus – family – order – species d. phylum – genus – family – species e. kingdom – family – class - order
Roundworms have organ system level organization in which groups of Organ work together to do a specific job
More questions all question are true or false 2. Plant cells have special structures that are not found in animal cells including a cell membrane a large central vacuole and plastids 3. Centrioles help organize chromosomes before cell division 4. Ribosomes can be found attached to the endoplasmic reticulum 5. ATP is made in the mitochondria . 6. Many of the bio chemical reaction of the cell occur in the cytoplasm. 7. Animal cells have chloroplasts organelles that capture light energy from the sun and use it to make food. 8. Small Hydrophonic molecules can easily pass through the plasma membrane 9. In cell level organization different cells are specialized for different functions. 10 The flagella on your lung cells sweep foreign particles and mucus to the mouth and nose. 11. Mitochondria contains its own DNA. 12. The plasma membrane is a single phospholipid layer that supports and protects a cell and controls what enters and leaves . 13. The cytoskeleton is made from thread like filaments and tubules.
Matching. Choose the one most appropriate answer
for each. 1. ___ benthic province 2. ___ biome 3. ___ hydrothermal ecosystem 4. ___ estuaries 5. ___ savanna 6. ___ taiga 7. ___ littoral zone 8. ___ tropical rain forest 9. ___ tundra 10. ___ upwellings A. northern coniferous forest B. increases oceanic productivity C. mosaics of tall, coarse grasses, shrubs, and low trees; even, humid forests; high rainfall D. stratified on rocky coasts E. includes sediments and rocks on the ocean bottom F. stratified communities with vines, orchids, and monkeys, and nutrient-poor soil G. chemoautotrophs are the primary producers H. dwarf willows, mosses, lichens, caribou, and permafrost I. nurseries of the oceans J. a large region characterized by its large array of dominant primary producers
Ribbed mussels (Modiolus demissus), fiddler crabs (Uca spp.), and marsh periwinkles (Littorina spp.) are the dominant animals of a high salt marsh
Indicate whether the statement is true or false