Problem: OPTIONS:
- water
- oxygen
- air
- light
Q: Answer the following question given this paragraph: Q: Some plants can detect increased levels of what when reflected from leaves of encroaching neighbors? A:
Answer: light

Problem:OPTIONS:
- LYMPHATIC
- molecules system
- skeletal system
- digestive system

Answer the following question given this paragraph: Large intestine Removes solid waste and some water in the form of feces. Digestive system. Q: Which system does the large and small intestine belong to? A:
****
A: digestive system

Answer the following question given this paragraph: Transport of Oxygen in the Blood Although oxygen dissolves in blood, only a small amount of oxygen is transported this way. Only 1.5 percent of oxygen in the blood is dissolved directly into the blood itself. Most oxygen98.5 percentis bound to a protein called hemoglobin and carried to the tissues. Hemoglobin Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits (Figure 39.19). Each subunit surrounds a central heme group that contains iron and binds one oxygen molecule, allowing each hemoglobin molecule to bind four oxygen molecules. Molecules with more oxygen bound to the heme groups are brighter red. As a result, oxygenated arterial blood where the Hb is carrying four oxygen molecules is bright red, while venous blood that is deoxygenated is darker red. Q: Most oxygen in blood is bound to a protein called what, and carried to the tissues? A:
OPTIONS:
- platelete
- hydrogen
- plasma
- hemoglobin
hemoglobin

Answer the following question given this paragraph: Earthworms are deposit feeders. They burrow through the ground, eating soil and extracting organic matter from it. Earthworm feces, called worm casts, are very rich in plant nutrients. Earthworm burrows help aerate soil, which is also good for plants. Q: What type of feeders are earthworms? A:
OPTIONS:
- middle
- top
- oil
- deposit

Answer: deposit

Question: Answer the following question given this paragraph: Most vascular plants are seed plants, or spermatophytes. They reproduce with seeds and pollen. Some modern seed plants are gymnosperms that produce seeds in cones. Q: Most vascular plants are seed plants, also known as? A:
OPTIONS:
- sporozoans
- bacteria
- fungus
- spermatophytes
Answer: spermatophytes

input: OPTIONS:
- mucus
- sedimentation shell
- microscopic shell
- calcareous shell Now, answer this 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:
A:
output:
calcareous shell