As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Humans have been able to adapt to a great diversity of climates, including hot humid and hot arid.
Japanese knotweed is a perennial weed, producing tall canes, up to 2.1m (7ft) in height during the summer. The canes have characteristic purple flecks, and produce branches from nodes along its length. These branches support shovel-shaped leaves.
Herbicide control. Dense stands of Japanese Knotweed can be treated with a glyphosate-based herbicide, . If the Japanese Knotweed is sparsely distributed, spot-treat or use 2, 4-D amine, which is specific to broadleaved plants and will not harm the grasses.apanese Knotweed. Japanese Knotweed was introduced in the UK in the 1850's as an ornamental plant and as a fodder plant. It is a very invasive weed though not harmful if consumed. It is generally found along rivers and streams, road verges, in gardens and on waste ground.