Most diatoms are photosynthetic (they use sunlight to provide them with energy), though some absorb soluble nutrients from their environment.
they use photosynthesis to make energy
they feed on stuff Diatoms are almost all photosynthetic. Most of the biological energy production (and oxygen production!) on earth is due to photosynthesis, and a little under half of it occurs in the ocean. Diatoms are responsible for a large proportion of the total energy production of the oceans, possibly as much as a half... They don't eat but make there own nutrients
Most diatoms are photosynthetic (they use sunlight to provide them with energy), though some absorb soluble nutrients from their environment.
pennate diatoms
Diatoms are single celled algae.
diatoms are a microalgae group
Diatoms are algae, diatoms are protists. Diatoms are placed in the division Bacilliariophyta, which is distinguished by the presence of an inorganic cell wall composed of hydrated silica.
Diatoms are usually microscopic, but they can be 2mm in length. Marine diatoms are a yellowish brown colour.
diatoms are producers, not decomposers. they are photosynthetic organisms
class chrysophyta
Diatoms account for 23% of the primary productivity of the world, that's what they do!