Phylum: Arthropoda. Class: Arachnida. Order: Araneae. Family: Theraphosidae. Genus: Brachypelma. Species: B. vagans. Domain: The Redrump Tarantula belongs to the domain Eukarya because it obtains a true nucleus, and membrane bound organelles. These same traits can be seen in many organisms we know even wasabi! Learn more about wasabi.
Collateral is something physical that you use to secure something, for example, a loan. A pledge is a promise and may or may not be in writing. For example, when you go to the bank to secure a loan you usually have to put up something like real estate or stocks, as well as promising to pay it back.
The difference between stocks and bonds is that stocks are shares in the ownership of a business, while bonds are a form of debt that the issuing entity promises to repay at some point in the future. A balance between the two types of funding must be achieved to ensure a proper capital structure for a business.