If an alga had gold-colored chloroplasts and cell walls containing pectin and cellulose, was autotrophic but heterotrophic in the absence of adequate light, and stored food in the form of oil, which phylum would it belong to?

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Compare the composition of the moon's surface with the composition of the earth's surface.

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