Answer the following question given this paragraph: Passive immunity arises from the transfer of antibodies to an individual without requiring them to mount their own active immune response. Naturally acquired passive immunity is seen during fetal development. IgG is transferred from the maternal circulation to the fetus via the placenta, protecting the fetus from infection and protecting the newborn for the first few months of its life. As already stated, a newborn benefits from the IgA antibodies it obtains from milk during breastfeeding. The fetus and newborn thus benefit from the immunological memory of the mother to the pathogens to which she has been exposed. In medicine, artificially acquired passive immunity usually involves injections of immunoglobulins, taken from animals previously exposed to a specific pathogen. This treatment is a fast-acting method of temporarily protecting an individual who was possibly exposed to a pathogen. The downside to both types of passive immunity is the lack of the development of immunological memory. Once the antibodies are transferred, they are effective for only a limited time before they degrade. Q: Passive immunity arises from the transfer of what to an individual, without requiring them to mount their own active immune response? Choices: - parasites - bacteria - viruses - antibodies A:
antibodies
Answer the following question given this paragraph: lava flows from a volcano and hardens into rock. Q: Lava flows from a volcano and hardens into what? Choices: - life - snow - sand - rock A:
rock
Q: Answer the following question given this paragraph: Have you ever gone swimming in the ocean? If you have, then you probably tasted the salts in the water. By mass, salts make up about 3.5% of ocean water. The table below shows the most common minerals in ocean water ( Table below ). The main components are sodium and chloride. Together they form the salt known as sodium chloride. You may know the compound as table salt or the mineral halite. Q: What are the two main minerals found in ocean water? Choices: - dioxide , chloride - quartz, carbon - carbon , chloride - sodium, chloride A:
A: sodium, chloride
Question: Answer the following question given this paragraph: Free-living roundworms are found mainly in freshwater habitats. Q: Where are free-living roundworms mainly found? Choices: - arboreal habitats - rainforests - ocean depths - freshwater habitats A:
Answer: freshwater habitats
*Question*
Answer the following question given this paragraph: Volcanic eruptions can be non-explosive or explosive depending on the thickness of the magma. Q: What determines whether a volcanic eruption will be explosive or not? Choices: - lava temperature - magma velocity - curve of magma - thickness of magma A:
**Answer**
thickness of magma
Answer the following question given this paragraph: Your body's first line of defense is like a castle's moat and walls. It keeps most pathogens out of your body. The first line of defense includes physical, chemical, and biological barriers. Q: What is the purpose of your body's first line of defense? Choices: - reject foreign bodies - fight or flight - heal wounds - to keep out pathogens A:
to keep out pathogens