Which of these is a main type of tissue?
smooth
skeletal
cardiac
muscle

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Archaebacteria use for movement. celia flagella pili cell walls

Pulmonary arteries carry highly oxygenated blood. true or false?