Question: Answer the following question given this paragraph: 15.4 Mollusks and Annelids The phylum Mollusca is a large, mainly marine group of invertebrates. Mollusks show a variety of morphologies. Many mollusks secrete a calcareous shell for protection, but in other species, the shell is reduced or absent. Mollusks are protostomes. The dorsal epidermis in mollusks is modified to form the mantle, which encloses the mantle cavity and visceral organs. This cavity is distinct from the coelomic cavity, which the adult animal retains, surrounding the heart. Respiration is facilitated by gills known as ctenidia. A chitinous scraper called the radula is present in most mollusks. Mollusks are mostly dioecious and are divided into seven classes. The phylum Annelida includes worm-like, segmented animals. Segmentation is both external and internal, which is called metamerism. Annelids are protostomes. The presence of chitinous hairs called chaetae is characteristic of most members. These animals have well-developed nervous and digestive systems. Polychaete annelids have parapodia that participate in locomotion and respiration. Suckers are seen in the order Hirudinea. Breeding systems include separate sexes and hermaphroditism. Q: What do many mollusks secrete for their protection? A:
OPTIONS:
- mucus
- sedimentation shell
- microscopic shell
- calcareous shell
Answer: calcareous shell

input with options: Answer the following question given this paragraph: Mars is the fourth planet from the Sun. The Red Planet is the first planet beyond Earth's orbit. Q: Which is the fourth planet from the sun? A:
OPTIONS:
- mars
- jupiter
- earth
- mars
output: mars

Q: Answer the following question given this paragraph: There are only about 25 living species of lancelets. They inhabit the ocean floor where the water is shallow. Lancelet larvae are free-swimming. The adults can swim but spend most of their time buried in the sand. Like tunicates, lancelets are filter feeders. They take in water through their mouth and expel it through an opening called the atriopore (see Figure below ). Lancelets reproduce sexually and have separates sexes. Q: Where do lancelets live? A:

OPTIONS:
- on land
- riverbeds
- deep sea caves
- shallow ocean water

A: shallow ocean water

input: OPTIONS:
- fiber
- steroids
- liquids
- nutrients Now, answer this question: Answer the following question given this paragraph: Q: Humans and other animals can suffer from diets lacking in what essential "ingredients"? A:
A:
output: nutrients

Answer the following question given this paragraph: continental margin : The transition from the land to the deep sea. The continental margin is made of continental crust. More than one-quarter of the ocean basin is continental margin. Q: What is the continental margin made of? A:

OPTIONS:
- boundary crust
- pangea
- continental drift
- continental crust

Answer: continental crust

Q: Answer the following question given this paragraph: Composite volcanoes are also called stratovolcanoes. This is because they are formed by alternating layers (strata) of magma and ash ( Figure below ). The magma that creates composite volcanoes tends to be thick. The steep sides form because the lava cannot flow too far from the vent. The thick magma may also create explosive eruptions. Ash and pyroclasts erupt into the air. Much of this material falls back down near the vent. This creates the steep sides of stratovolcanoes. The composition of magma that erupts at composite volcanoes is usually felsic (rhyolite) or intermediate (andesite). Q: What is another name for composite volcanos? A:

OPTIONS:
- fjords
- fault lines
- seismic giants
- stratovolcanoes

A:
stratovolcanoes