Which Oldest Positively Identified Fossil Bird Had Feathers, but Retained

question 38

Multiple Choice

Which oldest positively identified fossil bird had feathers, but retained many reptile characteristics?

• A) ichthyosaurs
• B) plesiosaurs
• C) therapsid
• D) Utatsusaurus
• E) Archaeopteryx

Identify the contributions of Alfred Russel Wallace to biogeography and understand the historical context of species distribution.

Distinguish different biomes, such as tundra, boreal forest, and temperate zones, based on their physical and biological characteristics.

Understand the short-term and long-term environmental changes and their influence on ecosystems and biomes.

Differentiate between key ecological concepts and environmentalism.

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Definitions:

FIFO

First-In, First-Out, an inventory valuation method that assumes the oldest items are sold first.

Units

The basic quantitative measure used in accounting to represent transactions or balances, often referring to production or sales volumes.

Gross Profit

The difference between revenue and the cost of goods sold before deducting overheads, payroll, taxation, and interest payments.

LIFO

Last In, First Out, an inventory valuation method where the goods purchased or produced last are the first to be expensed.