The movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration is referred to as _____________.
Fill in the blank(s) with the appropriate word(s).
Ans: osmosis
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What is cytokinesis?
A. The stage of the cell cycle during which the cell separates its duplicated DNA B. The stage of the cell cycle during which the cell duplicates its DNA C. The stage of the cell cycle after the cell has divided its DNA and during which the cytoplasm gets divided D. The stage of the cell cycle that happens before the cell is ready to divide its DNA
Cyanobacteria, or blue-green algae, are considered the most ancient organisms capable of photosynthesis. Given what you know about cyanobacteria, which of the following is the more similar species?
A. Rickettsia rickettsii; A unicellular intracellular pathogen that infects warm-blooded animals, including humans, causing Rocky Mountain spotted fever. B. Halobacterium salinarum; A unicellular obligate aerobe that often inhabits hypersaline lakes. This species produces gas vesicles in order to maximize its access to oxygen at the lake's surface. C. Nitrosolobus multiformis; A unicellular rod-shaped nitrifying bacterium that inhabits subsurface soils at depths associated with plant roots. D. Nostoc verrucosum; A filamentous species often found in shallow streams and creeks that is capable of fixing atmospheric nitrogen using specialized cells known as heterocytes.
The efficient exchange of gases in gills is an example of countercurrent exchange. Indicate whether the statement is true or false
This facial bone forms part of the nasal septum.
What will be an ideal response?