An ecologist studies a forest area for evidence of competition among organisms. she chooses a specific location where a tree was struck by lightning. the lightning strike caused the tree to fall over, leaving a space in the tree canopy for light to pass through. which of these observations provides the best evidence of competition?

many tree seedlings crowd the open space and attempt to grow in the sunlight.

snakes come into the open space and eat small rodents that can easily be spotted in the sunlight.

termites, with microorganisms in their stomachs to them digest wood, are found on the fallen tree.

a type of plant, called a bromeliad, grows in the branches of the fallen tree and continues to survive even though the tree has fallen

Many tree seedlings crowd the open space and attempt to grow in the sunlight.

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.