- Industry: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A sperm cell; the male reproductive cell; the male gamete.
Industry:Natural environment
A very potent general use pesticide found in the roots and stems of several tropical plants. Jewel vine (Derris spp.), Lacepod (Lonchocarpus spp.), and hoary pea (Tephrosia spp.) Are the more common plants from which rotenone is derived. It used in some countries to kill predatory fishes prior to introducing parent fish for natural spawning or newly hatched fry. As an effective fish biocide, rotenone is also used for collecting fish specimens, and in some areas for fishing, where it is added to the water and the dead and dying fishes are collected as they float to the surface. In fishes, rotenone impedes circulation to the gills, causing asphixiation .
Industry:Natural environment
Having a ph of more than 7. Alkaline solutions are also said to be basic.
Industry:Natural environment
In taxonomy, any one of the original syntypic series remaining after the selection of a lectotype.
Industry:Natural environment
One of the two cavities in the sides of the body of ctenophores (comb jellies) into which the tentacles can be withdrawn.
Industry:Natural environment
Skeleton, or support structure, which is on the inside of the organism's body. All vertebrates possess an endoskeleton that is made of either bone and/or cartilage.
Industry:Natural environment
The periodic rising and falling of the water that results from the gravitational attraction of the moon and sun acting on the rotating earth.
Industry:Natural environment
The temperature at which all motion will cease (0 degrees Kelvin or -273.15 degrees C).
Industry:Natural environment
The four anterior vertebrae and associated tissues in some fishes (catfishes, loaches, minnows, suckers) that connect the gas bladder to the inner ear, conveying pressure changes and sound.
Industry:Natural environment
A cell that discharges a sticky filament upon contact with a prey organism. Colloblasts are found in the tentacles of ctenophores (comb jellies). As the tentacles are dragged through the water, the colloblasts discharge and capture prey.
Industry:Natural environment
