Which of the following is an adaptation that helps protect the animal? А
Cows have incisors.
B
Cactuses have thick stems.
с
A porcupine has sharp quills.
D
Hummingbirds have long, skinny beaks.

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?