100 ! 3 contributions phylum chrysophyta to the environment or other organisms

This is everything i could find on what it can do to the environment and a few things about them. I hope it helps

Chrysophyta is a phylum of unicellular marine or freshwater protists. Members of this phylum include the diatoms (class Bacillariophyta), golden/golden-brown algae (class Chrysophyceae), and yellow-green algae (class Xanthophyceae) Their Relatives, Affect on Humans, and Role in the Food Chain. ... Being the main components of plankton and nanoplankton, diatoms and chrysophyceae are the foundation of the marine food chain, functioning as the producers.Under some circumstances diatoms will reproduce sexually, but the usual form of reproduction is cell division. The diatoms and golden-brown algae are of great importance as components of the plankton and nanoplankton that form the foundation of the marine food chain. They are not considered truly autotrophic by some biologists because nearly all chrysophytes become facultatively heterotrophic in the absence of adequate light, or in the presence of plentiful dissolved food. When this occurs, the chloroplast atrophies and the alga may turn predator, feeding on bacteria or diatoms.

Phylum Chrysophyta

- Members have gold-colored chloroplasts

- Includes yellow-green algae and golden-brown algae

- Reproduction can be sexual or asexual