Answer:
Double and triple covalent bonds are stronger than single covalent bonds and they are characterized by the sharing of four or six electrons between atoms, respectively.
Explanation:
The phylum Echinodermata , which contains about 6000 species, gets its name from the Greek, literally meaning "spiny skin." Many echinoderms actually do have "spiny" skin, but others do not. This phylum exists exclusively in the sea, and cannot be found on land or in fresh water. All echinoderms have one thing in common: radial symmetry. This means that the creatures have appendages (or body construction) which point outward from the center of the body like the spokes on a bicycle wheel. Furthermore, these appendages usually occur in multiples of five, although there are a few exceptions. There are several well known members of this group, like sea stars and sea urchins. The radial symmetry is obvious in these creatures.
Answer:
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The correct answer is:
1 - Blue wildebeest (Connochaetes taurinus)
2 - Blue wildebeests
3 - Blue wildebeests and Black wildebeests
4 - Blue wildebeests, Black wildebeests, crocodiles, acacia trees
5 - Maasai Mara
A hierarchical organization is an organizational structure where every component of the organization is subordinate to some other component.