Answer:
Explanation:
Alkali metals (rarely 'Hydrogen and the alkali metals')
Alkaline earth metals (in old chemistry this name applied only to Ca and its congeners)
Icosagens (unofficial name; aka Boron group; rarely Earth metals)
Crystallogens (unofficial name; aka Carbon group; rarely Adamantogens[a] or Merylides[b])
Pnictogens
Chalcogens
Halogens
Noble gases (rarely Aerogens). The Group name may have to be changed to the “Helium group” since oganesson is not expected to be noble.
The source of all energy in the pyramid in model one is the hawk
Starfish have a unique form of digestion in the animal kingdom and a water-vascular system that allows the animal to breathe.
All your answers should be in this article:
http://animals.mom.me/feeding-respiration-starfish-6596.html
D for sure. Just like how the ground rises over millions of years.
Answer:
Explanation:
All biotic components are dependent on the abiotic components for their survival. Like plants need sunlight, water and carbon dioxide for carrying out photosynthesis that produce food which feed other organisms.07-Feb-2014
