Problem: OPTIONS:
- external thermostat
- mechanical thermostat
- sensitive thermostat
- internal thermostat
Q: Answer the following question given this paragraph: For example, your body has an internal thermostat. During a winter day, in your house a thermostat senses the temperature in a room and responds by turning on or off the heater. Your body acts in much the same way. When body temperature rises, receptors in the skin and the brain sense the temperature change. The temperature change triggers a command from the brain. This command can cause several responses. If you are too hot, the skin makes sweat and blood vessels near the skin surface dilate. This response helps decrease body temperature. Q: Like a house, your body has what kind of mechanism that responds to changes in temperature? A:
Answer: internal thermostat

Problem:OPTIONS:
- abiogenesis
- biosynthesis
- parthenogenesis
- organogenesis

Answer the following question given this paragraph: Within the first 8 weeks of gestation, a developing embryo establishes the rudimentary structures of all of its organs and tissues from the ectoderm, mesoderm, and endoderm. This process is called organogenesis. Like the central nervous system, the heart also begins its development in the embryo as a tube-like structure, connected via capillaries to the chorionic villi. Cells of the primitive tube-shaped heart are capable of electrical conduction and contraction. The heart begins beating in the beginning of the fourth week, although it does not actually pump embryonic blood until a week later, when the oversized liver has begun producing red blood cells. (This is a temporary responsibility of the embryonic liver that the bone marrow will assume during fetal development. ) During weeks 45, the eye pits form, limb buds become apparent, and the rudiments of the pulmonary system are formed. During the sixth week, uncontrolled fetal limb movements begin to occur. The gastrointestinal system develops too rapidly for the embryonic abdomen to accommodate it, and the intestines temporarily loop into the umbilical cord. Paddle-shaped hands and feet develop fingers and toes by the process of apoptosis (programmed cell death), which causes the tissues between the fingers to disintegrate. By week 7, the facial structure is more complex and includes nostrils, outer ears, and lenses (Figure 28.15). By the eighth week, the head is nearly as large as the rest of the embryo's body, and all major brain structures are in place. The external genitalia are apparent, but at this point, male and female embryos are indistinguishable. Bone begins to replace cartilage in the embryonic skeleton through the process of ossification. By the end of the embryonic period, the embryo is approximately 3 cm (1.2 in) from crown to rump and weighs approximately 8 g (0.25 oz). Q: Within the first 8 weeks of gestation, a developing embryo establishes the rudimentary structures of all of its organs and tissues from the ectoderm, mesoderm, and endoderm. this process is called what? A:
****
A: organogenesis

Answer the following question given this paragraph: Exergonic c. Decomposition d. Catabolic, exergonic, and decomposition 18. Which of the following combinations of atoms is most likely to result in a chemical reaction? a. hydrogen and hydrogen b. hydrogen and helium c. helium and helium d. neon and helium 19. Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that ________. the inside of the mouth maintains a very high temperature b. chewing stores potential energy c. chewing facilitates synthesis reactions d. saliva contains enzymes 20. CH4 is methane. This compound is ________. Q: Chewing a bite of bread mixes it with what and facilitates its chemical breakdown? A:
OPTIONS:
- chyme
- calcium
- interstitial fluid
- saliva
saliva

Answer the following question given this paragraph: Polar Bears. Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?. Q: What type of ecosystem do polar bears live in? A:
OPTIONS:
- tropical
- oceanic
- natural
- arctic

Answer: arctic

Question: Answer the following question given this paragraph: Genes located on the sex chromosomes are called sex-linked genes . Most sex-linked genes are on the X chromosome, because the Y chromosome has relatively few genes. Strictly speaking, genes on the X chromosome are X-linked genes , but the term sex-linked is often used to refer to them. Q: What are genes located on the sex chromosomes called? A:
OPTIONS:
- autosomes
- diploid genes
- dimorphism - linked genes
- sex-linked genes
Answer: sex-linked genes

input: OPTIONS:
- gamma
- vapor
- acid
- plasma Now, answer this question: Answer the following question given this paragraph: Plasma is a state of matter that resembles a gas but has certain properties that gases do not have. Like a gas, plasma consists of particles of matter than can pull apart and spread out, so it lacks a fixed volume and a fixed shape. Unlike a gas, plasma can conduct electricity and respond to a magnetic field. That's because plasma consists of electrically charged particles called ions, instead of uncharged particles such as atoms or molecules. This gives plasma other interesting properties as well. For example, plasma glows with colored light when electricity passes through it. You can learn more about plasma at this URL: http://www. youtube. com/watch?v=VkeSI_B5Ljc. Q: What is the state of matter that resembles a gas, but is made of ions, giving it different properties than a typical gas? A:
A:
output:
plasma