*Question*
Q: What do seismic waves prove about the inner core? Read this paragraph and choose the correct option from the provided answers: Seismic waves show that the outer core is liquid. The inner core is solid. Choices: - it is liquid - it is hot - it is layered - it is solid A:
**Answer**
it is solid

*Question*
Q: Unlike an adult sponge, what stage is motile due to cilia that propel it through water? Read this paragraph and choose the correct option from the provided answers: Sperm are released into the surrounding water through the osculum. If they enter a female sponge through a pore, they may be trapped by collar cells. Trapped sperm are delivered to eggs inside the female body, where fertilization takes place. The resulting zygote develops into a larva. Unlike the adult, the larva is motile. It is covered with cilia that propel it through the water. As the larva grows, it becomes more similar to an adult sponge and loses its ability to swim. Choices: - parasite - zygote - pupa - larva A:
**Answer**
larva

*Question*
Q: What gases move in and out of blood during gas exchange? Read this paragraph and choose the correct option from the provided answers: User:helix84/Wikimedia Commons. Gas exchange is the movement of oxygen into the blood and carbon dioxide out of the blood . CC BY 2.5. Choices: - oxygen, carbon monoxide - nitrogen, carbon dioxide - oxygen, nitrogen - oxygen, carbon dioxide A:
**Answer**
oxygen, carbon dioxide

*Question*
Q: What do nearly all animals have in common with regards to digestion? Read this paragraph and choose the correct option from the provided answers: Virtually all animals have internal digestion of food. Animals consume other organisms and may use special tissues and organs to digest them. (Many other organisms absorb nutrients directly from the environment. ). Choices: - external digestion of food - complete digestion of food - problematic digestion of food - internal digestion of food A:
**Answer**
internal digestion of food