Q: When a series of measurements is precise but not what, the error is usually systematic? Read this paragraph and choose the correct option from the provided answers: 0 .033 g 1 .117 g 100 = 3 .0% When a series of measurements is precise but not accurate, the error is usually systematic. Systematic errors can be caused by faulty instrumentation or faulty technique. The difference between accuracy and precision is demonstrated in Skill Builder ES7. Choices: - velocity - length - color - accurate A:
accurate

Q: The first consumption of breast milk or formula floods the baby's gastrointestinal tract with what? Read this paragraph and choose the correct option from the provided answers: Gastrointestinal and Urinary Adjustments In adults, the gastrointestinal tract harbors bacterial floratrillions of bacteria that aid in digestion, produce vitamins, and protect from the invasion or replication of pathogens. In stark contrast, the fetal intestine is sterile. The first consumption of breast milk or formula floods the neonatal gastrointestinal tract with beneficial bacteria that begin to establish the bacterial flora. The fetal kidneys filter blood and produce urine, but the neonatal kidneys are still immature and inefficient at concentrating urine. Therefore, newborns produce very dilute urine, making it particularly important for infants to obtain sufficient fluids from breast milk or formula. Choices: - hemoglobin - nerves - enzymes - beneficial bacteria A:
beneficial bacteria

Q: Q: What isotope of carbon is typically used to date ancient items? Read this paragraph and choose the correct option from the provided answers: Choices: - uranium 14 - nitrogen 14 - carbon 12 - carbon 14 A:
A: carbon 14

Question: Q: Why do crystals have relatively sharp and well-defined melting points? Read this paragraph and choose the correct option from the provided answers: Deformation of the ionic crystal causes one plane of atoms to slide along another. The resulting repulsive interactions between ions with like charges cause the layers to separate. Crystals tend to have relatively sharp, well-defined melting points because all the component atoms, molecules, or ions are the same distance from the same number and type of neighbors; that is, the regularity of the crystalline lattice creates local environments that are the same. Thus the intermolecular forces holding the solid together are uniform, and the same amount of thermal energy is needed to break every interaction simultaneously. Amorphous solids have two characteristic properties. When cleaved or broken, they produce fragments with irregular, often curved surfaces; and they have poorly defined patterns when exposed to x-rays because their components are not arranged in a regular array. An amorphous, translucent solid is called a glass. Almost any substance can solidify. Choices: - particular intermolecular forces - variable intermolecular forces - angular intermolecular forces - uniform intermolecular forces A:
Answer: uniform intermolecular forces

*Question*
Q: What kind of summers do humid continental climates have? Read this paragraph and choose the correct option from the provided answers: Humid continental climates have warm winters and cold summers. Subarctic climates have cool short summers and very cold winters. Choices: - dry summers - warm summers - wet summers - cold summers A:
**Answer**
cold summers

(Question)
Q: When a glacier no longer moves, what is it called? Read this paragraph and choose the correct option from the provided answers: Glaciers are melting back in many locations around the world. When a glacier no longer moves, it is called an ice sheet. This usually happens when it is less than 0.1 km2 in area and 50 m thick. Choices: - a glacial lake - an iceberg - an ice cylinder - an ice sheet A:
(Answer)
an ice sheet