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 main difference between liabilities and expenses are the timing under which they are realised. Expenses are incurred, and payments are made during the current period; whereas, liabilities are benefits that are obtained now for which obligations need to be met at a future date. Expenses are recorded in the income statements, since higher the expenses lower the profitability of the firm.