<span>Alleles are two different forms of single gene that are located in specific position on a specific chromosome. It can be classified into two allele pairs: homozygous and heterozygous. In homozygous, both alleles are the same whether they are both dominant or recessive; while in heterozygous, one allele is dominant and the other is recessive.</span>
<span>Having things other than chlorophyll (or bacteriochlorophyll or bacteriorhodopsin) absorbing the light will decrease productivity in any ecosystem whose biotic basis is photoautotrophs.</span>
The answer is all of the above
Lizard belongs to chordate phylum.
hope it helps you.
C. The lungs can better exchange oxygen
