Answer:
The amount of sunlight that is absorbed or reflected by the surface determines how much atmospheric heating occurs. Darker areas, such as heavily vegetated regions, tend to be good absorbers; lighter areas, such as snow and ice-covered regions, tend to be good reflectors.
Explanation:
Basically they say "null hypothesis" according to source:
http://www.statisticshowto.com/what-does-it-mean-to-reject-the-null-hypothesis/
Researchers prefer to use embryonic stem cells instead of adult stem cells because embryonic stem cell can differentiate into more type of cells.Human embryonic stem (ES) cells capture the imagination because they are immortal and have an almost unlimited developmental potential. Embryonic stem cells are pluripotent cells not unipotent. After many months of growth in culture dishes, these remarkable cells maintain the ability to form cells ranging from muscle to nerve to blood—potentially any cell type that makes up the body.
A. glucagon is a hormone made by the pancreas; it helps raise blood glucose levels.
it is right option.
The force in nature which distinguishes between unfit and fit individuals is called natural selection.
<h3>What is natural selection?</h3>
- Natural selection is the process in which nature chooses which organisms will survive and which will perish.
- Variations are present in all the organisms in a population. Some have better traits than the others.
- The organisms which adapt and change according to the environment have better chances of survival.
- Darwin gave the term ‘Survival of the fittest’ that operates under natural selection and drives the evolution of a species.
- Organisms which have genes better suited to the environment survive and pass these genes to their next generation. Eventually the population consists of only those organisms having that gene.
- An example of natural selection is Darwin's finches.
Learn more about natural selection here:
brainly.com/question/23929271
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