organisms descended from more than one ancestor since algae has association with multiple other organism.
Explanation:
The Restriction enzymes are used in Recombinant DNA technology to produce enzymes by using genetic engineering.
Explanation: By using rDNA technology desired proteins or enzymes can be obtained. The desired DNA fragments are cleaved using Restriction enzymes and inserted into Bacterial Plasmid of the bacteria (vector), these are replicated inside the bacteria, and the desired product is obtained from this molecular cloning technique.
I believe the answer is C
Most fish exchange gases using gills on either side of the pharynx (throat). Gills are tissues which consist of threadlike protein structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.