Osmosis requires?

A - all of the above

B - a selectively permeable membrane

C - none, it does not involve water

D - water

E - a concentration gradient between solutes and water

Does a pinecone open in hot or cold conditions?

Atoms also take up space and math knowing this we can calculate the density of a single atom. Using the information from Scandium in our previous question (#5) calculate the density if the volume of a single atom is 4,410,945.3pm to the third

True or false? Water is an example of a chemical element.

If the frequency of a particular allele that is present in a small, isolated population of alpine plants decreases due to a landslide that leaves an even smaller remnant of surviving plants bearing this allele, then what has occurred? A.

Consider a major environmental change. if there are not organisms in a population that have traits that allow them to still continue to survive to reproduce, what would likely happen to that population

Which is a renewable resource? A) coal B) sunshine C) gasoline D) natural gas

How are fitness and adaptation important to natural selection?

Where do the light-independent reactions of photosynthesis occur? A. Stroma B. Thylakoids C. Cell cytoplasm D. Intermembrane space

What causes pioneer grasses and weeds that have grown in an abandoned field to die?

What specific event triggers the uncovering of the myosin binding site on actin?