How do root cell membranes allow osmosis. A. a reflex triggers the need for water in the plant.
B. They keep water out of the plant
C. They are impermeable
D. They are semi permeable

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry

Which of the follow describes a disadvantage secondary sources have compared to primary sources?