Answer the following question given this paragraph: In a pedigree, squares symbolize males, and circles represent females. A horizontal line joining a male and female indicates that the couple had offspring. Vertical lines indicate offspring which are listed left to right, in order of birth. Shading of the circle or square indicates an individual who has the trait being traced. The inheritance of the recessive trait is being traced. A is the dominant allele and a is recessive. An "affected" individual has the trait or characteristic (or disease) in question. Q: In a pedigree what shape symbolizes males? Choices: - spheres - rectangles - triangles - squares A:
squares
Answer the following question given this paragraph: Q: Where are all hormones secreted into before entering the circulatory system? Choices: - Amniotic fluid - blood stream - Cerebrospinal fluid - interstitial fluid A:
interstitial fluid
Q: Answer the following question given this paragraph: Motion of water molecules helps break up interactions between solid ions or molecules. Q: Motion of water molecules helps break up interactions between what? Choices: - ions or hormones - acids and bases - enzymes and acids - solid ions or molecules A:
A: solid ions or molecules
Question: Answer the following question given this paragraph: The control rods play an important role in the modulation of the nuclear chain reaction (usually a collision of a neutron with uranium). Each collision produces more neutrons than were present initially. If left unsupervised, the reaction would soon get out of control. Rods are commonly made of boron or a number of metals and metal alloys. The purpose of the control rods is to absorb neutrons to regulate the rate of the chain reaction so that the water does not overheat and destroy the reactor. Q: What play an important role in the modulation of the nuclear chain reaction? Choices: - radiation rods - control neutrons - particle rods - control rods A:
Answer: control rods
*Question*
Answer the following question given this paragraph: In harmonic motion there is always a restorative force , which acts in the opposite direction of the velocity. The restorative force changes during oscillation and depends on the position of the object. In a pendulum it is the component of gravity along the path of motion. The force on the oscillating object is directly opposite that of the direction of velocity. Q: A solute generally has what effect on the boiling point of a solvent? Choices: - randomizes - lowers - none - raises A:
**Answer**
raises
*Question*
Answer the following question given this paragraph: Electrons are transferred from hair to a balloon rubbed against the hair. Then the oppositely charged hair and balloon attract each other. Q: When a balloon is rubbed against hair, why do they attract each other? Choices: - constantly electron charge - lean electron charge - same electron charge - opposite electron charge A:
**Answer**
opposite electron charge