What happens when the tiny embryos are expelled?
What will be an ideal response?
They crawl up the dam's abdomen in search of a nipple. Once they find a nipple, they attach and the nipple swells to secure the pup. Several pups will die if they don't find or attach to a nipple.
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__________ cutting is done by rotating a tool base so the spinning blade cuts into the material.
Fill in the blank(s) with the appropriate word(s).
Salamanders belong to the subphylum Amphibia
Indicate whether the statement is true or false
An air-to-water heat pump is typically used for:
A) Domestic hot water heating. B) House heating. C) Industrial process heating. D) Both house and domestic hot water heating.
The safety cap should always be in place when moving oxygen cylinders because:
A) If the valve were to break off, the cylinder would fly through the air. B) The safety cap prevents cylinder overpressurization. C) The safety cap provides a good place to connect a hook for lifting the cylinder. D) The safety cap prevents oxygen from leaking out.