Answer:
Without the primary consumers there would be no source of energy for carnivores or secondary consumers so no secondary consumers would exist in that ecosystem. Also there would by definition be no primary consumers. The producers would be the only organisms in the ecosystem, besides decomposers.
Answer:
Craniates
Explanation:
Vertebrate animals - representing the subphylum Craniates, as its name implies, are those animals that have as their main characteristic the spine. This structure is responsible for shaping, balancing and protecting the nerve cord.
Vertebrates are a phylum part of chordates, but pay attention, as not every chordate is a vertebrate animal. Vertebrates are fish, amphibians, reptiles, birds and mammals. Hagfish, lamprey, sharks and tuna are an example of chordates that have a spine and can be classified as Craniates.
Yes.
The 'order' of amino acids is the protein sequence, also known as the primary structure. A peptide (short protein) with sequence XYXYXYXYX is very different from XXXXXXXYYYYYYY.