High CO2 levels cause plants to thicken their leave ,which could worsen climate change effect researchers says.
plant scientists observed that when CO2 levels increase in the atmosphere <em><u>most </u></em><em><u>plants</u></em><em><u> </u></em><em><u>do </u></em><em><u>unusual </u></em><em><u>,</u></em><em><u> they</u></em><em><u> </u></em><em><u>thicker </u></em><em><u>their</u></em><em><u> leave</u></em>
<em><u>germination</u></em><em><u> </u></em><em><u>increase</u></em><em><u> in</u></em><em><u> </u></em><em><u>high</u></em><em><u> </u></em><em><u>temperature</u></em><em><u> </u></em><em><u>up </u></em><em><u>to</u></em><em><u> the</u></em><em><u> </u></em><em><u>point</u></em>
Answer: a. increased energy efficiency
Explanation:
In this type of research, human nuclear materials are used therefore it shall apply the same policies and concerns about the use of human embryonic stem cells (hESC).
Many scientists are frustrated because their work has been at a standstill due to laws about stem cell research. Some of these laws ban the use of such application like the Dickey Amendment.