What molecule provides short term energy

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

What type of lipids are found in all biological membranes?

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.