Which substances are needed for cellular respiration? use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

Carbondioxide glucose water oxygen and hydrogen.

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

8.7 degrees celsius and 15.6 degrees fahrenheit