*Question*
Answer the following question given this paragraph: Like all other living cells, prokaryotes have a cell membrane. It controls what enters and leaves the cell. It's also the site of many metabolic reactions. For example, cellular respiration takes place in the cell membrane. Q: What part of the cell controls what enters and leaves? Choices: - nucleus - protein - organism - membrane A:
**Answer**
membrane

*Question*
Answer the following question given this paragraph: Many elements have one or more isotopes that are radioactive. These isotopes are called radioisotopes. An example of a radioisotope is carbon-14. Q: What is an isotope that is radioactive called? Choices: - isotopes - matured isotope - radionuclides - radioisotopes A:
**Answer**
radioisotopes

*Question*
Answer the following question given this paragraph: Figure 16.8 Pituitary Tumor The pituitary gland is located in the sella turcica of the sphenoid bone within the cranial floor, placing it immediately inferior to the optic chiasm. If the pituitary gland develops a tumor, it can press against the fibers crossing in the chiasm. Those fibers are conveying peripheral visual information to the opposite side of the brain, so the patient will experience "tunnel vision"meaning that only the central visual field will be perceived. Q: Which gland is located in the sella turcica of the sphenoid bone within the cranial floor? Choices: - mammalian gland - thyroid gland - glucose gland - pituitary gland A:
**Answer**
pituitary gland

*Question*
Answer the following question given this paragraph: Two important concepts associated with the ecosystem are niche and habitat. Q: Two important concepts, niche and habitat, are associated with what? Choices: - natural selection - plant - water - ecosystem A:
**Answer**
ecosystem