Imagine that there are twenty-five different species of protists living in a tide pool. Some of these species reproduce both sexually and asexually, and some of them can reproduce only asexually. The pool gradually becomes infested with disease-causing viruses and bacteria. What species is more likely to thrive in the changing environment?
sexually reproducing species
According to the endosymbiotic theory, why was it adaptive for the host cell to keep the engulfed cell, rather than digesting it as food?
Engulfed cell provides host cell with ATP
What protist is derived from an ancestral cyanobacterium?
A snail-like, coiled, porous test (shell) of calcium carbonate is characteristic of ______.