input: OPTIONS:
- veins
- pores
- tear ducts
- blood vessels Now, answer this question: Answer the following question given this paragraph: The skin helps maintain a constant body temperature. It keeps the body cool in two ways. Sweat from sweat glands in the skin evaporates to cool the body. Blood vessels in the skin dilate, or widen, increasing blood flow to the body surface. This allows more heat to reach the surface and radiate into the environment. The opposite happens to retain body heat. Blood vessels in the skin constrict, or narrow, decreasing blood flow to the body surface. This reduces the amount of heat that reaches the surface so less heat is lost to the environment. Q: What in the skin dilates, or widens, in order to increase blood flow to the bodys surface? A:
A:
output: blood vessels

Answer the following question given this paragraph: Mollusks are invertebrates such as snails, scallops, and squids. Q: Snails, scallops, and squids are examples of invertebrates called what? A:

OPTIONS:
- orthopods
- gastropods
- clams
- mollusks

Answer: mollusks

Problem: OPTIONS:
- Wind Mills
- Pannels
- Power Plants
- solar cells
Q: Answer the following question given this paragraph: Solar cells convert the energy in sunlight to electrical energy. They contain a material such as silicon that absorbs light energy and gives off electrons. Q: What can be used to convert the energy provided by the sun to usable electrical energy? A:
Answer: solar cells

Problem:OPTIONS:
- the cell wall
- the mucus
- cytopods
- the cytoplasm

Answer the following question given this paragraph: Almost all protozoa can move. They have special appendages for this purpose. You can see different types in Figure below . Cilia (cilium, singular) are short, hair-like projections. Pseudopods are temporary extensions of the cytoplasm. Flagella are long, whip-like structures. Flagella are also found in most prokaryotes. Q: Pseudopods are temporary extensions of what? A:
****
A: the cytoplasm

Answer the following question given this paragraph: Q: What is vital for nervous system functions that include muscle stimulation, memory formation, and learning? A:
OPTIONS:
- thiamine
- glutamate
- glycogen
- acetylcholine
acetylcholine

Answer the following question given this paragraph: The lithosphere-asthensophere divisions are based on mechanical properties. Q: The lithosphere-asthensophere divisions are based on what? A:
OPTIONS:
- mechanical compounds
- elemental properties
- constant properties
- mechanical properties

Answer:
mechanical properties