Intracellular vesicles can move across a cell quickly, indicating that the mechanism of vesicle movement is most likely not a function of passive diffusion through the cytoplasm. which of the following best describes the mechanism through which vesicles move throughout a cell? vesicles slide along the microtubules of the cytoskeleton. vesicles are propelled through the cytoplasm by small structures similar to flagella. vesicles have an osmotic pump that forces small amounts of cytoplasm out in one direction as it contracts, pushing the vesicle forward in the opposite direction. vesicles are moved throughout the cytoplasm by atp-driven transport prions.

the missing space is phylum

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.