What are the functions of plant stems? (Select all that apply.) support leaves
position leaves toward the sun
absorb water
transport food and water
produce food

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