Woody Plants: Examples Birch trees, oak trees, maple trees, and virtually all other trees are woody plants, not herbaceous plants. Most shrubs are also considered woody, with very few exceptions. Some vines, such as poison ivy (Toxicodendron radicans) and Boston ivy (Parthenocissus tricuspidata)...
Plants, like all living things, are classified into groups so they will be easier to discuss and study. These groups consist of the following: kingdom, phylum, class, order, family, genus, species. Kingdom is the largest group that contains a vast number of species while the organisms get...
The explanation is based on a number of assumptions about the penetration of insect cuticle by solid poisons. These assumptions lead to the conclusion that the effect of temperature on the relative toxicity depends on the temperature coefficient of kill by internal action of the poison on the ...
1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope. 2. ...
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In theHunger Games, it’s repeatedly emphasized that the main character, Katniss, has detailed knowledge of poisonous plants. This knowledge stays in the background of the reader’s mind until the last act, when she’s double-crossed by the Gamemakers and has to use her knowledge of poison...
Poison oak rhizome. Credit:Poison Ivy Control Of Michigan. Rhizomes: Above-ground stem system As the name suggests, these rhizomes grow above the ground and close to the soil. These rhizomes extend shoots from the nodes, and a fully new plant can be grown through a single patch of the rhi...
Many plants will contain chemicals that are toxic to predators when consumed, which leads to predators avoiding that plant. An example of this is the foxglove, which is toxic when eaten. Animals can evolve these defenses, too. An example is the poison dart frog that can secrete toxic poison...
These physiological effects range from light stimulants such as caffeine to poisons such as coniine (the poison in hemlock). Alkaloids have been utilized from plants (as medication, or poison) for millennia. Today, where the pure structures of alkaloids can be identified, the official alkaloids ...
While trees may look similar, there are thousands of different kinds, along with many other plants. These plants provide food and shelter for forest animals, from tiny insects to large bears. There are three main types of animals that live in the forests: mammals, reptiles, and amphibians. ...