There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.
Did you know?
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
The visual field as seen by a person with (a) glaucoma, (b) macular degeneration, and (c) cataracts.
The Major Divisions of the Visual Cortex of the Rhesus Monkey
W. A. Rogers’s engraving, “Out of the Game,” showed one injured boy tending to another. It appeared
Pathways of the Visual System in the Brain
Metric bolt (cap screw) grade markings and approximate tensile strength.