By Gary D. Wisehart, Erin C. Rempala, Michael J. Leboffe, David Ferguson
This publication is a full-color complement that offers photos of preserved specimens and pictures taken at a variety of aquaria to supply insurance of organisms within the world's oceans. it truly is designed to accompany any marine biology textual content or laboratory handbook. 3-hole drilled
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Additional resources for A Photographic Atlas of Marine Biology
This genus is sold in health food stores as a dietary supplement. (c) Cell division in two perpendicular directions produces the planar arrangement characteristic of the genus Merismopedia. The cells are enclosed in a mucilaginous sheath and are approximately 1–2 µm in diameter. (d) Oscillatoria trichomes are formed from disc-shaped cells that are approximately 10 µm long (that is, across the trichome). These cyanobacteria demonstrate gliding motility. (e) Lyngbya trichomes are distinguished from Oscillatoria by the extracellular sheath.
Groups such as tintinnids (Figure 3-2G) collect bits of particles, such as sand, and cement them together to form a rigid test, or lorica (sheath), outside of the cell body itself. Stalk F G 2 1 H m 3-2 Ciliophora The distinctive characteristic of this group is the presence of cilia either covering the entire cell (a, b, and c), covering only a portion of the cell such as in Vorticella sp. (d through f) and Tintidium sp. (g and H), or present only during particular life-cycle stages. Chapter 3 Planktonic Heterotrophs 29 Dinoflagellata As with other organisms formerly classified as Protista, the phylogeny of dinoflagellates is not well resolved.
The ornamentation on their frustules is much more apparent. (hapt—to grasp, nema—thread) extending from the cytoplasm between the two flagella. It is composed of mem branous layers surrounding seven microtubules, so is fundamentally different in structure from eukaryotic flagella, which have the 9+2 arrangement of microtubules within (nine pairs surrounding two single microtubules). The haptonema is a feeding structure that gathers food particles and delivers them to a food vacuole (vacuus— empty, ole—diminutive suffix) at the posterior of the cell.