Protists are a variety of eukaryotic organisms, most of which are unicellular. They can be autotrophic, heterotrophic, or a combination (mixotrophic). Plant-like protists are generally referred to as algae but include the euglenids, dino flagellates, diatoms, and golden, brown, red, and green algaes. Animal-like protists include protozoans, sporozoans, alveolates, kinetoplastids, ciliates, parabasilids, diplomonads, rhizopods, forams, and radiolarians. Fungus-like protists decompose organic material and reproduce via spores. They include slime molds and oomycetes. It is believed that some, especially photosynthetic protists, may have emerged from multiple rounds of endosymbiosis (serial endosymbiosis). Their life cycles can result in a diploid or haploid adult as well as an alternation of generations (multicellular haploid and diploid phases) and increased diversity through conjugation.
Protists are no longer
considered part of a single kingdom. Molecular evidence revealed
that some members of this kingdom were more closely related to
members of other kingdoms and the reclassification of the protists
Some protists are heterotrophs,
others are autotrophs and those that function as both are known as
Plant-like protists are
photosynthetic and most are unicellular, although some members of
this group are multicellular. Plant-like protists include the
euglenids, dinoflagellates, diatoms and the brown, red and green
Animal-like protists are
unicellular heterotrophs. They may be non-motile or motile by means
of flagella, cilia or pseudopods. Examples include sporozoans,
diplomonads, rhizopods, forams and radiolarians.
The fungus-like protists are
heterotrophs. They decompose organic material, reproduce via spores
and have cell walls. They include the plasmodial slime molds,
cellular slime molds and oomycetes.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book and CD package include two full length practice exams that are presented with all questions answered and explained. The author also presents detailed reviews of all test topics and includes multiple-choice and free-response questions with answers at the end of each topic's chapter.
This book includes a review of the AP Biology exam format and scoring, proven strategies for answering multiple-choice questions, and hints for tackling the essay questions. The practice tests include answers and explanations and there is also proven test-taking strategies for both the multiple choice and essay parts.