Sentences with phrase «celled microscopic animals»
These one celled microscopic animals are most commonly detected by fecal examination.
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Scientists are forced either to experiment on whole animals, which is expensive, raises ethical issues and may not predict effects in humans, or to perform tests on microscopic human cells found in tissue cultures, which have been altered to live forever and bear little relation to actual living, breathing people.
A few microscopic techniques can focus light deep into the intact brains of dead animals to study its structure without damaging the axons, but much of this light is scattered away by the fatty lipid membranes that surround individual cells, making the technique less than perfect.
bacteria Microscopic, single - celled organisms that dwell nearly everywhere on Earth, from the bottom of the sea to inside animals.
Previous studies of this type relied on microscopic examination of tissue samples from sacrificed animals, but this new approach allows researchers to watch the life or death of cells in real time.
The smartphone microscope is powerful enough to visualize specimens as small as 1 / 200th of a millimeter, including microscopic organisms, animal and plant cells, blood cells, cell nuclei, and more.
are microscopic, single - celled protozoa that live and reproduce within the animal cell.