These parallel scratches were most likely caused by

Ocean waves

Running water

Wind

Or Glacier ice

Diffusion and osmosis are forms of passive transport

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits

Which nucleotide component contains nitrogen