Some animals, such as bats in North America, adapt to colder temperatures by
allowing their body temperatures to drop and their breathing rate and heartbeat to
fall. Then they need less energy and can survive on their stored body fat. What is
this entire process called?
deep sleep
Estivation
hibernation
Thermal coma

What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

What does the symbol (–hfus) indicate in a phase change?