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Optic nerve
The optic nerve is the nerve that transmits visual information from the retina to the brain. The optic nerve is composed of retinal ganglion cell axons and support cells. It leaves the orbit (eye) ... > more -
Vegetarianism
Vegetarianism is the practice of not eating meat. Vegetarians may consume dairy and egg products; a stricter form is veganism, which excludes dairy, eggs, and any foods that contain these or other ... > more -
Cat intelligence
Cat intelligence is the considered capacity of learning, thinking, and problem solving ability possessed by the domestic cat. Cats learn by trial and error, observation and imitation. Cat learning ... > more -
Leaf vegetable
Leaf vegetables, also called potherbs, greens, or leafy greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and shoots. Although they come from a very wide variety ... > more -
Bird intelligence
The level of intelligence in birds, as a scientific inquiry, has not been as thoroughly researched as similar questions regarding primates and other mammals. However, there is a general belief that ... > more -
Nut (fruit)
A nut in botany is a simple dry fruit with one seed (rarely two) in which the ovary wall becomes very hard at maturity, and where the seed remains unattached or unfused with the ovary ... > more -
Soil science
Soil science deals with soil as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils ... > more
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