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from article Derris
Derris elliptica. (Photo courtesy of Forest and Kim Starr)
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from article Poppy
Stems, fruits (capsules), and flower of the opium poppy (Papaver somniferum). By cutting into the fruits soon after the petals have fallen, the opium is obtained. (Credit: Milan Kořínek)
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from article Sarcomastigophora
An opalinid (Protoopalina axonucleata) showing primary and secondary lines of blepharoplasts.
Image
from article Sarcomastigophora
Hedriocystis reticulata, a small heliozoan of the superclass Sarcodina.
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from article Sarcomastigophora
A xylophagous symbiotic flagellate (Trichonympha sp.) from a termite.
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from article Kinorhyncha
Echinoderes sp., a cyclorhagid kinorhynch (ventrolateral view).
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from article Bioremediation
Contaminating oil spill on the surface of ocean water. (Credit: Steve Martarano/U.S. Fish and Wildlife Service)
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from article Bioremediation
Controlled oil burns were used to reduce the amount of surface oil following the Deepwater Horizon explosion in the Gulf of Mexico in 2010. (Credit: John Masson/U.S. Coast Guard)
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from article Bioremediation
Diagram of in situ bioremediation. Microorganisms and nutrients are introduced into the site, where they flow into the area containing pollutants. The bioremediation process is monitored, and water and by-products are extracted using wells. (Credit:…
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from article Plant pigment
Photosynthetic spectra of higher plants. (Left) Absorption spectra for chlorophyll a, chlorophyll b, and the carotenoids, showing the wavelengths of visible light that support photosynthesis. (Right) Action spectrum for photosynthesis. (Copyright ©…
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from article Plant pigment
Structures of three types of plant pigments: chlorophylls (chlorophyll a and chlorophyll a′), carotenoids (β-carotene and lutein), and phycocyanobilin. (Copyright © McGraw Hill)
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from article Plant pigment
The autumn colors of leaves are produced by carotenoid pigments. During the autumn, leaves stop their production of chlorophyll, providing the opportunity for the orange and yellow carotenoid colors observed in autumn leaves to predominate. In…
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from article Plant pigment
Chemical structure of cyanidin (C15H11O6). (Copyright © McGraw Hill)
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from article Arthropoda
The insects are the largest group within the phylum Arthropoda. Some of the most visually appealing insects are the butterflies (order Lepidoptera). (Credit: Shutterstock)
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from article Arthropoda
Crustaceans constitute some of the most notable arthropods. The Chesapeake blue crab (Callinectes sapidus) is native to the western Atlantic Ocean and Gulf of Mexico. (Credit: Sandy Franz/Getty Images)
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from article Arthropoda
Body segmentation is a fundamental characteristic of the arthropods. The Madagascan fire millipede (Aphistogoniulus corallipes) has numerous leg-bearing segments. (Copyright © McGraw-Hill Education)
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from article Arthropoda
Diagram of the position of principal internal organs in a typical arthropod. (Copyright © McGraw-Hill Education)
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from article Arthropoda
Fossil of a trilobite, showing its distinctive flattened oval shape and crosswise division of the body (into a head, a thorax, and a pygidium). (Credit: Shutterstock)
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from article Lissamphibia
Pedicellate teeth in Lissamphibia: (a) salamander; (b) apodan; (c) frog. Teeth are from the lower jaw (a, b) or upper jaw inverted (c) and are viewed from inside the mouth. (After T. Parsons and E. E. Williams, The teeth of Amphibia and their…
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from article Lissamphibia
Operculum-stapes complex of a primitive salamander (skin removed to show internal structures).
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from article Heat storage system
A solar energy water heater installed on a rooftop. (Credit: frankipeti/Getty Images)
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from article Heat storage system
Heat content Q as a function of temperature T. (a) Q increases with increasing temperature, even if there is no phase transition, as in a sensible heat storage material. (b) When the material undergoes a phase transition at temperature Ttrs, a…
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from article Satellite (spacecraft)
Eight major launch sites that can do orbital launches. Their location and range safety considerations determine acceptable azimuths. (After J. P. Loftus, Jr., C. Teixera, and D. Kirkpatrick, Launch Systems, chap. 18 in J. R. Wertz and W. J. Larson,…
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from article Crustacea
A blue crab (Callinectes sapidus) is a common crustacean found in waters of the western Atlantic Ocean and the Gulf of Mexico. (Credit: Phil Lowe/Shutterstock)
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from article Crustacea
External morphology of a lobster. (Copyright © McGraw Hill)
