mostly collagen and some calcium phosphate
Struggled with this earlier but because of the high altitude only some animals can live there and thrive because of the lower oxygen levels
Answer:
b. a single temporal fenestra
Explanation:
Synapsids have a temporary fossa in the lower part of the temporal bone. These reptiles mamiferoides only have a single inferior temporal fenestra.
The synapsids were the first amniots to diversify and appeared in the middle of the Carboniferous. These first synapses were characterized by the presence of a single temporary fenestra behind each orbit, through which the mandibular muscles pass.
bjjbbvguiyyfccyggyc jbuiytcvuhhhhcc
