Why are short-tailed opossums classified as marsupials if they do not have a pouch?
What will be an ideal response?
They have marsupial bones (os marsupalia) that form part of the pelvic attachment to the abdominal muscles. STOs have skin around each nipple that forms a cushion or donut around each young to secure the attachment. Embryos are delivered in an undeveloped state to further develop outside the uterus.
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Answer the following statement(s) true (T) or false (F)
1. Small DC motors can be connected directly across the line for starting. 2. Magnetic across-the-line control of small DC motors is very different from AC control. 3. DC arcs are greater than those due to AC.
It is sometimes said that the Europeans who came to the Americas settled a "virgin land" that was unused and unspoiled. Write an essay demonstrating that this is, or is not, an accurate description of what happened.
What will be an ideal response?
Why would the timer on a time-temperature defrost system reset?
A) The timing circuit starts a new countdown. B) The defrost temperature is not warm enough. C) The defrost temperature is not cold enough. D) The system did not trigger the switch on the board.
What is a k factor?
A) A measure of thermal conductivity in BTU/hr/ft2/°F/in of thickness B) A measure of heat content in BTU/lb C) A measure of specific heat capacity in BTU/lb D) A measure of thermal resistance in BTU/hr/ft2/°F/in of thickness