All the other ones are features that are also in a prokaryotic cells so it must be D?
Answer: The basic unit of a sugar molecule is carbon.
Explanation:
Carbon forms the skeleton of all sugar molecules. It is the basic unit of every sugar molecule which has the ability to form covalent bonds with other elements like hydrogen and oxygen to form sugar molecules. For instance, in a simple sugar such as glucose having a formula of C6H12O6, carbon combines with hydrogen and oxygen in the ratio of 1:2:1.
Metals are known to be excellent conductors of electricity, however some metals do not conduct electricity as well as gold, copper or sliver (examples of good conductors). Metals such as lead, mercury and alloys of iron, chromium, titanium and stainless steel do not conduct electricity as good as silver, copper and gold. It is also important to note that all gases do not conduct electricity at all due to the great amount of space between its electrons.
Answer:
Global warming also refers to what scientists think will happen in the future if ... Though there is a steady stream of new studies on climate change, one of the most robust ... Between the two outlooks, less warming means fewer people will have to ... for the rise in average temperatures over the past century.What is global warming, and how is it different from climate change and climate variability? ... Haven't they been skewed by non-climate factors like instrument ... And, if so, doesn't this mean climate is not as sensitive to carbon dioxide.Global warming is happening now, and scientists are confident that ... global warming is, how scientists know it's happening, and how they predict future climate. ... Climate has changed when the planet received more or less sunlight due ... Earth's average surface temperature over the past century primarilyIf the planet accumulates heat, global temperatures will go up. ... Past climate change actually provides evidence for our climate's sensitivity to CO2. ... interesting questions; some are easily answered, some less so: [Has any research been done ... extinctions unless you think that this means global warming is a good thing.
Explanation:
In the United States, a series of reports by the U.S. Global Change Research Program ... Most of the warming over the last several decades can be attributed to human ... have increased over the past two centuries as a result of human activities, ... Physical factors also give rise to substantial spatial variations.The changes observed over the last several decades are likely mostly due to ... the growth rate of climate forcing 1 agents such as carbon dioxide will accelerate. ... in terms of the global mean temperature change that would be expected after a ... central United States during the 10th to 14th centuries than they have been in ...