Organelles which are found only in plant cells. why do plant cells need these two,
(cell ), organelles while animal cells do not?

Plss anybody know how to do this? ? i need the answers from a through d

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is