phytoplankton
Diatoms are believed to have originated during the Jurassic period, around 250 million years ago. They are a type of algae that adapted to live in both freshwater and marine environments, and have since become one of the most diverse and abundant types of phytoplankton in the world.
Diatoms are primarily found in the sunlit zone of the ocean, also known as the euphotic zone. This zone receives enough sunlight for photosynthesis to occur, which is essential for diatoms as they are photosynthetic organisms. They are most abundant in surface waters where sunlight penetration is optimal.
Most Diatoms are Photosynthetic but some have evolved to be heterotrophic
muscle
nucleus and vacule {they are types of cells}
Parenchyma cells are the most abundant type of plant cell. They are found in most plant tissues and perform various functions such as photosynthesis, storage, and provision of support.
Diatoms make silica shells called frustules. These frustules form intricate designs and patterns, which are unique to each species of diatom. The frustules function as protective outer coverings for the diatoms.
phytoplankton found in the ocean. They play a crucial role in marine ecosystems by contributing to the base of the food web and producing a significant amount of oxygen through photosynthesis. Additionally, diatoms have unique cell walls made of silica, which give them their distinct shape and help with nutrient cycling in the ocean.
diatoms
Most diatoms are photosynthetic (they use sunlight to provide them with energy), though some absorb soluble nutrients from their environment.
most abundant shark
No. Air is a mixture of gases. The most abundant are nitrogen (78%) and oxygen (21%). Refer to the related link for a listing of the ten most abundant gases in the atmosphere.