Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine common ancestry?
fossils
analogous structures
homologous structures
molecular clock

Specialized cells which perform a particular function form : organisms organs tissues

You have 2 plants of the same type and same size, same amount of leaves. one of them is put inside the house and the other one is put in the balcony. you water them saturday, one plant with 200 ml and the other with 400 ml of water. which one of your plants need less water? explain.

Compare the composition of the moon's surface with the composition of the earth's surface.