The paper clip, which is denser than water, floats on the surface because of water's surface tension. surface tension is a property of water that is the result of polar water molecules sticking together or water's property of
a)
adhesion.
b)
cohesion.
c)
buoyancy.
d)
capillary action.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

List two modern organisms that have pentameral symmetry

The activity of the modern sample is 1.10 bq . how long does that measurement take?