Q: What kinds of neutron stars emit radiation in pulses? Read this paragraph and choose the correct option from the provided answers: A pulsar is a rotating neutron star that emits radiation in pulses. A pulsar can only be seen when the beam is pointing toward Earth. Pictured below is a nebular that looks like a cosmic hand ( Figure below ). There is a bright swirl of gas in the wrist of the hand. A very tiny but bright neutron star is in the center of that swirl. Choices: - quasars - red giants - dwarf stars - pulsars A:
pulsars

Q: What is the process of generating electric current with a magnetic field? Read this paragraph and choose the correct option from the provided answers: An electric generator is a device that produces electricity through electromagnetic induction. Electromagnetic induction is the process of generating electric current with a magnetic field. Choices: - pole induction - mechanical induction - molecular induction - electromagnetic induction A:
electromagnetic induction

Q: Q: Birds flying thousands of miles south in the winter, then returning to their homes in spring, is a familiar example of what? Read this paragraph and choose the correct option from the provided answers: One type of migration that you are probably familiar with is the migration of birds. Maybe you have heard that birds fly south for the winter. In the fall, birds fly thousands of miles to the south where it is warmer. In the spring, they return to their homes. ( Figure below ). Choices: - hibernation - evacuation - emigration - migration A:
A: migration

Question: Q: The kidney glomerulus filters blood mainly based on particle size to produce a filtrate lacking cells or large what? Read this paragraph and choose the correct option from the provided answers: CHAPTER REVIEW 25.1 Physical Characteristics of Urine The kidney glomerulus filters blood mainly based on particle size to produce a filtrate lacking cells or large proteins. Most of the ions and molecules in the filtrate are needed by the body and must be reabsorbed farther down the nephron tubules, resulting in the formation of urine. Urine characteristics change depending on water intake, exercise, environmental temperature, and nutrient intake. Urinalysis analyzes characteristics of the urine and is used to diagnose diseases. A minimum of 400 to 500 mL urine must be produced daily to rid the body of wastes. Excessive quantities of urine may indicate diabetes insipidus or diabetes mellitus. The pH range of urine is 4.5 to 8.0, and is affected by diet. Osmolarity ranges from 50 to 1200 milliosmoles, and is a reflection of the amount of water being recovered or lost by renal nephrons. Choices: - lipids - carbohydrates - steroids - proteins A:
Answer: proteins

*Question*
Q: What regulates the thyroid gland in a body? Read this paragraph and choose the correct option from the provided answers: The thyroid gland is regulated by a negative feedback loop. The loop includes the hypothalamus and pituitary gland in addition to the thyroid. Choices: - positive feedback loop - upper feedback loop - normal feedback loop - negative feedback loop A:
**Answer**
negative feedback loop

(Question)
Q: What is the term for the measure of a fluid's thickness? Read this paragraph and choose the correct option from the provided answers: Characteristics of Blood When you think about blood, the first characteristic that probably comes to mind is its color. Blood that has just taken up oxygen in the lungs is bright red, and blood that has released oxygen in the tissues is a more dusky red. This is because hemoglobin is a pigment that changes color, depending upon the degree of oxygen saturation. Blood is viscous and somewhat sticky to the touch. It has a viscosity approximately five times greater than water. Viscosity is a measure of a fluid's thickness or resistance to flow, and is influenced by the presence of the plasma proteins and formed elements within the blood. The viscosity of blood has a dramatic impact on blood pressure and flow. Consider the difference in flow between water and honey. The more viscous honey would demonstrate a greater resistance to flow than the less viscous water. The same principle applies to blood. The normal temperature of blood is slightly higher than normal body temperatureabout 38 C (or 100.4 F), compared to 37 C (or 98.6 F) for an internal body temperature reading, although daily variations of 0.5 C are normal. Although. Choices: - friction - elasticity - salinity - viscosity A:
(Answer)
viscosity