Answer the following question given this paragraph: Food allergies are like other allergies. They occur when the immune system reacts to harmless substances as though they were harmful. Almost ten percent of children have food allergies. Some of the foods most likely to cause allergies are shown below ( Figure below ). Q: The reaction of which body system causes food allergies? Choices: - cardiac system - lymphatic system - nervous system - immune system A:
immune system
Answer the following question given this paragraph: Often, new diseases result from the spread of an existing disease from animals to humans. A disease that can be spread from animals to humans is called a zoonosis . When a disease breaks out, scientists called epidemiologists investigate the outbreak, looking for its cause. Epidemiologists are like detectives trying to solve a crime. The information epidemiologists learn is important to understand the pathogen, and help prevent future outbreaks of disease. Q: What is a disease that can be spread from animals to humans called? Choices: - proteolysis - Anthroponosis - parasite - zoonosis A:
zoonosis
Q: Answer the following question given this paragraph: Duplications (or amplifications ) lead to multiple copies of a chromosomal region, increasing the number of the genes located within that region. Some genes may be duplicated in their entirety. Q: What leads to multiple copies of a chromosomal region? Choices: - minimilizations - gene modification - subtractions - duplications (or amplifications ) A:
A: duplications (or amplifications )
Question: Answer the following question given this paragraph: The strength of an acid depends on the concentration of hydrogen ions it produces when dissolved in water. A stronger acid produces a greater concentration of ions than a weaker acid. For example, when hydrogen chloride is added to water, all of it breaks down into H + and Cl - ions. Therefore, it is a strong acid. On the other hand, only about 1 percent of acetic acid breaks down into ions, so it is a weak acid. Q: The strength of what depends on the concentration of hydrogen ions it produces when dissolved in water? Choices: - the solution - electricity - the base - acid A:
Answer: acid
*Question*
Answer the following question given this paragraph: Q: What was the first widely used antibiotic? Choices: - aspirin - alcohol - benadryl - penicillin A:
**Answer**
penicillin
Answer the following question given this paragraph: symbiotic relationship in which one species benefits while the other species is harmed. Q: What is the term for the relationship in which one species benefits while the other species is harmed? Choices: - combative relationship - commensal relationship - parasitic relationship - symbiotic relationship A:
symbiotic relationship