Helper T cells become activated by interacting with antigen presenting cells. and the second blank space is either cytotoxic t cells or B cells
I think the correct answer is the first option. The action that would be most effective in decreasing the amount of carbon dioxide in the atmosphere while increasing the amount of biodiversity in an area would be planting more trees to absorb more of the carbon dioxide from the atmosphere. Turning forests into housing developments would destroy biodiversity and would increase carbon dioxide. Digging prairies would probably affect the amount of carbon dioxide but it would only have minimal change. Sowing beans and legumes would involve using equipment which will produce more carbon dioxide. So, option A is the best answer.
C. the foxes will have a ten year population cycle
let me know if you need a more detailed explanation <3
Answer:
The Isopropanol had a lower heat of vaporization than that of water, meaning that it didn't have to have as much energy to accomplish a phase change, in this case evaporation.
Since you provide no options, here are the usual parts of scientific method :
- Idea / question which answer you want to find out
- Research , collecting all kinds of data
- Hypothesis , an explanation that is made at the starting point, before the experiment
- Experiment , to find out whether your hypothesis is right
- Analyze the data that you got from the experiment
- Conclusion, your final judgement based on the result of your experiment
