Answer:
D. archaeal membranes contain L-glycerol.
Explanation:
Archaea and eubacteria differ from each other with respect to the nature of membrane lipids. Lipids present in the membranes of the archaeans have the hydrocarbons derived from isoprene units. These hydrocarbons are branched and are attached to the glycerol with help of ether linkage. Ester linkages are present in eubacteria. The glycerol present in the archaeans is L- glycerol. Bacterial membranes have D-glycerol present in their lipids.
Some genetic mutations can be completely harmless, while others are life-altering. Mutations happen when DNA is copied incorrectly. This causes an irregularity in the DNA. Mutations are permanent changes to genetic material that can be passed on to offspring. These changes happen randomly and can occur in any type of gene. While some mutations are not harmful (hazel eyes, for example), many mutations have harmful effects on health.
Butter because it has more kcal/grams than the others
This answer is true as can be!
Answer:
B. CO2 reacts so quickly with other compounds that it should not be occurring.
Explanation:
CO2 concentrations globally have increased significantly due to increased anthropogenic activities of burning, increased emissions from industrial hubs around the globe and other contributing human activities. Burning of fossil fuels, coal and liquified natural gas releases greenhouse gases, GHGs to the atmosphere and water bodies. It has been estimated recently that CO2 rise at 2.4 parts per million.
