Pumice is a type of rock formed when gas bubbles are trapped inside of cooling lava. pumice is most often formed when volcanoes erupt violently. what type of rock is pumice? a) extrusive igneous b) intrusive igneous c) contact metamorphic d) foliated metamorphic

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

What part of the brain is highlighted in the diagram below?

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.