Hello people uhh free points or challenges for one question. what subject do I pick when I give free points or challenges?

Which level of consumer had access to the smallest apply of energy

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation

One reason scientists are trying to develop fuel sources from corn and sugar is because these sources are renewable fossil fuels are being depleted these crops can be widely grown all of the above