Answer:
Unlike a steady pattern of growth, arthropods exhibit an external growth that proceeds in a sequence of step-like jumps, as the organism builds and replaces its exoskeleton. The arthropod does not grow bigger in size between these jumps. An aquatic arthropod gradually replaces body mass for water detained inside the tissues between molts.
The distinction between protostomes and deuterostomes is based on differences in their embryological development. Protostomes develop their oral end from their first developmental opening, while deuterostomes have their oral end develop from the second opening on the dorsal surface.
It's hard to understand like only a part of the page. Could you take a picture of the whole page. Thanks.
Answer:
biceps femoris
Explanation:
the group contains four separate muscles: the vastus lateralis, vastus medialis, vastus intermedius, and the rectus femoris
