food
what is at the bottom of the food pyramid
producers
what is the formula for water
h2o
list 3 abiotic factors
rock dirt/soil water air
what is element 1
hydrogen
what is at the top of the pyramid
apex preditor
why does water have a charge
it has less electrons on one side
what is a niche
an animals purpose
what is the purpose of pepsin
to break down proteins in the stomach
what is photosynthesis
how plants make food
why doesn't ice sink
it is less dense than water
what a community
a bunch of one species of animal
what is chloroplast
green pigment in leaves
what is chemosynthesis
an autotroph using something besides the sun to make food
what is a hydrogen bond
weak bonds between water moloculse
what is the biosphere
earth
what is stroma
a fluid that surrounds the thylakoids
how much energy is lost between levels
about 90%
why does water get polluted
what is run off
what does a habitat consist of
abiotic and biotic factors
what is the chemical formula for ATP
c10h16n5o13p3
extra 300 point