Answer: The answer is number 2 and number C
Explanation: BECAUSE
<span>A
gradual change in phenotype over a geographical area is called a cline (or clinal variation).</span>
A
cline is gradual phenotypic (and/or genetic) differences over a geographical
area. It usually happens as a result of the change of allele frequencies within
the gene pool.
The phrenic nerve, which controls the diaphragm
The two fundamental principles used in building cladograms are principles of parsimony and robusticity.
The principle of parismony states that the simplest of competing explanations is the one most likely to be correct.
The principle of rubusticity states that trees that maintains their basic forms even when different options are applied to the sequence of changes in one or more of their branches are preferable.<span />
If CO2 was in very small amounts then it would be the limiting factor of photosynthesis, this means the process will take place at a much slower rate because it is lacking one of the raw materials it needs for the process to occur. To find the optimum light intensity you really need all other factors to be at optimum levels or in abundance.
