MS Exam Review Part 2

Front

What is Chemosynthesis?

Back

Chemosynthesis is the process by which certain organisms, such as sulfur-oxidizing bacteria, convert carbon molecules (like carbon dioxide) into organic matter using the oxidation of inorganic molecules (like hydrogen sulfide) as an energy source.

Front

Where can Sulfur Oxidizing Bacteria be found?

Back

Sulfur oxidizing bacteria can be found in extreme environments such as mudflats and the abyssal zones of the ocean.

Front

Do symbiotic bacteria produce light for marine animals?

Back

True, symbiotic bacteria are known to produce light for some marine animals such as squid, fish, and octopus.

Front

What is the Medusa Stage in Cnidarians?

Back

The Medusa Stage is one of the life stages of cnidarians where the organism is free-swimming and has a bell-shaped body with tentacles hanging down.

Front

What is the Polyp Stage in Cnidarians?

Back

The Polyp Stage is a life stage of cnidarians where the mouth and tentacles are oriented upwards, typically attached to a substrate.

Front

What color of light is absorbed the most by water?

Back

False, blue light is not absorbed the most by water; red light is absorbed more quickly than blue light.

Front

What is the average saltwater concentration in parts per thousand (ppt)?

Back

The average saltwater concentration is approximately 35 ppt.

Front

What role do sulfur-oxidizing bacteria play in ecosystems?

Back

Sulfur-oxidizing bacteria play a crucial role in the sulfur cycle, converting sulfur compounds into forms that can be utilized by other organisms.

Front

What is the significance of symbiotic relationships in marine ecosystems?

Back

Symbiotic relationships, such as those between bacteria and marine animals, enhance survival, provide nutrients, and can lead to bioluminescence.

Front

How do cnidarians capture prey?

Back

Cnidarians capture prey using specialized cells called cnidocytes, which contain stinging structures called nematocysts.