Andrew gathered several different species of seed plants. Which three characteristics do all the plants most likely share? have pollen and flowers; lack phloem have pollen and rhizoids; lack xylem have xylem and phloem; lack pollen have xylem and phloem; lack rhizoids

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?

What ions are formed when hcl dissolves in water?