What can feed its self by either absorbing other living material or through photosynthesis ?

How can you keep track of variables in a science experiment?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.