The answer to this question would be: (4)carnivoresFood made by autotrophs which makes them placed first in food webs as they produce food. After that, the herbivore can digest the food made by autotroph, makes them places as the first consumer. Carnivores is the organism that eats meat, makes them the last consumer.
Matthew is not expressing the trait because he must be carrying the recessive gene of Achondroplastic dwarfism compared to Jane who is a dwarf with the genotype Aa