Explain why the testicles of most agricultural animals are suspended from the body and not inside the body cavity
What will be an ideal response?
In most cases, the testicles of agricultural animals are suspended from the body in a sac-like structure called the scrotum because proper sperm production requires that the testicles be cooler than the temperature of the animal's body. Being suspended keeps them cooler.
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Freeport McMoRan engineers estimated that the capital investment necessary for recovering valuable metals (nickel, silver, gold, etc.) from a copper refinery’s wastewater would be $150 million. The equipment is expected to have a useful life of 10 years with no salvage value. The amount of metal currently discharged in the wastewater is 12,500 pounds per year. The recovered metals are expected to have a selling price of $250 per pound. The efficiency relation of the recovery operation is represented by X 0.5, where X represents the efficiency in percentage. What value of X is necessary for the company to break even? Assume i = 10% per year.
The costs and revenue projections for a new product are estimated. What is the estimated profit at a production rate of 20% above breakeven? Fixed cost = $500,000 per year Production cost per unit = $200 Revenue per unit = $250
Technician A says that many power windows and power door locks use a permanent-magnet motor with a built-in circuit breaker and is reversible. Technician B says that the control switches and relays direct the current through the motor(s). Who is right?
A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B
Rem is a measure of the dose of ionizing radiation to body tissue stated in terms of its estimated biological effect relative to a dose of one roentgen of X-rays.