What Is a Possible Reason for Oxygen to Be So

question 36

Multiple Choice

What is a possible reason for oxygen to be so low by the end of the night?

• A)Algae produce oxygen as a by-product of photosynthesis during the day, and not at night, so oxygen runs out by the end of the night; fish are not linked to the low oxygen.
• B)Fish consume oxygen during the night, and oxygen starts to run out by dawn; algae are not linked to the low oxygen.
• C)Algae produce oxygen as a by-product of photosynthesis during the day, but not at night, so oxygen runs out by the end of the night; in addition, fish continue to consume oxygen during the night, which further reduces the oxygen by the end of the night.
• D)Neither fish nor algae or linked to the low oxygen found at the end of the night.

Comprehend the impact of human activities on biodiversity and ecosystem function.

Describe the goals and methods of restoration ecology.

Understand the role of ecotourism and other economic activities in conserving natural habitats and biodiversity.

Identify the consequences of introducing alien species into ecosystems.

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Definitions:

Subsidiary Ledger

A detailed ledger that contains supporting information for a main accounting ledger, often used for accounts receivable or accounts payable.

Cash Receipts Journal

An accounting ledger in which all cash inflows or receipts are recorded.

Accounts Payable Subsidiary

A detailed ledger containing all individual creditor accounts, supporting the summary-level accounts payable figure in the general ledger.

Control Account

An account in the general ledger that summarizes and checks the accuracy of individual records in subsidiary ledgers.