A microbiologist wants to study the virus particles from a urine sample, but not any bacteria that might be present. How can the bacteria be eliminated without harming the viruses

How many nucleotides are in the gene acc tta ggc cct tca

Which of the following best describes energy transformations in ecosystems? a. Most energy in a lower trophic level is passed to higher trophic levels. b. Heat is not a significant waste product as energy passes between trophic levels. c.

The Chlorophyll molecules work as energy convertor devices. Explain

The example of the great barrier reef is used to illustrate A-the insignificance of coral reefs B-the lack of diversity in the ecosystem C-the consequences of increasing acidity D-the problems that too much algae can relate

In what order does water transition from ocean water to rain water?

One Significant Figure Two Significant Figures Three Significant Figures Four Significant Figures 200 | 0.01 || 20 22||20. 1,230|| 8.88 || 136 155.6 || 1,245 8.880 One significant figure 200,0.01,20 Two significan figures 22, 20.

Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? (a) He decreased the density by increasing the volume.

Why do cells need to divide? A. contain to many chromosomes. B. Cells need to get rid of waste products. C. cells cannot live unless they divide often. D. Cell division is how organisms grow

Which of the following is not part of the carbon cycle? -Photosynthesis in plants -Respiration in plants -Evaporation of water from the oceans -Decay of plants

What would happen if a keystone species is removed from an ecosystem