Under what circumstances does membrane transport always require energy?

A relationship in which one organism lives in or on another organism and benefits from that relationship while the host organism is harmed by it

Choose all that apply. Atoms__. A. Normally have no change B. Are made of ions and electrons C. Are the smallest unit of matter D. Are made of electrons protons and neutrons

Which of the following does notaccurately describe movement within plants? A. Movement of sugars within the xylem results from changes in concentration of water. B.

How does the movement of air molecules cause pressure

How is energy flowing through the ecosystem (sorry for confusing anyone)

3 physical characteristics of humans affected by the environment?

What is indirect competition in biology terms

A muscle cramp is most likely due to lack of A) ATP. B) ADP. C) actin. D) myosin. E) acetylcholine.

Why is speech the easiest modality for communication?

Which statements describe the cyclic nature of seafloor spreading? Check all that apply. a) Continents are created. b) New oceanic crust is created. c) Volcanoes erupt and produce more crust. d) Old crust is destroyed at subduction zones.