Simple answer:
When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white. Warmer water temperatures can result in coral bleaching. ... This is called coral bleaching. When a coral bleaches, it is not dead.
More in depth explanation:
Exposure to higher (100 and 1000 µg l-1) diuron concentrations for 96 h caused a reduction in ΔF/Fm¹, the ratio variable to maximal fluorescence (Fv/Fm), a significant loss of symbiotic dinoflagellates and pronounced tissue retraction, causing the corals to pale or bleach.
Hope this helped :)
The answer would be A. Im sorry if its wrong
Answer:
a. Organism B is most closely related to organism A because the percentage of DNA similarity is 97%
b. Organism D and Organism A are the least closely related with a DNA similarity of 50%
c. Organism A and Organism B most likely share a common ancestor because there DNA is alomst identical leaving you to beleive that they are closly related.
Viruses enter a host cell when the host cell recognizes and binds the glycoproteins on the virus's surface, then take in the virus by phagocytosis. Thus, d. is the correct answer.
They both basically mean order
