These questions will help you prepare for the lesson quiz. Be sure to read the feedback carefully for any questions you answer incorrectly, and review those topics before leaving this lesson and taking the quiz.
What kind of environments do rotifers inhabit?
- aquatic areas
- the intestinal tract of mammals
- the bark of a tree
- dry desert soil
Rotifers are aquatic organisms. The vast majority of species are found in aquatic environments such as ponds, lakes, rivers, and streams. A portion of rotifers may be found in the damp soils or as parasites to aquatic life.
Rotifers are aquatic organisms. The vast majority of species are found in aquatic environments such as ponds, lakes, rivers, and streams. A portion of rotifers may be found in the damp soils or as parasites to aquatic life.
Rotifers are aquatic organisms. The vast majority of species are found in aquatic environments such as ponds, lakes, rivers, and streams. A portion of rotifers may be found in the damp soils or as parasites to aquatic life.
Rotifers are aquatic organisms. The vast majority of species are found in aquatic environments such as ponds, lakes, rivers, and streams. A portion of rotifers may be found in the damp soils or as parasites to aquatic life.
What anatomic structure is the phylum's name derived from?
- the stomach
- the brain
- the foot
- the corona
The name rotifer, loosely translated, means wheel bearer. Early observers believed the semicircular appendages near the rotifer's mouth resembled a wheel. That is why they are referred to as rotifers or wheel animals.
The name rotifer, loosely translated, means wheel bearer. Early observers believed the semicircular appendages near the rotifer's mouth resembled a wheel. That is why they are referred to as rotifers or wheel animals.
The name rotifer, loosely translated, means wheel bearer. Early observers believed the semicircular appendages near the rotifer's mouth resembled a wheel. That is why they are referred to as rotifers or wheel animals.
The name rotifer, loosely translated, means wheel bearer. Early observers believed the semicircular appendages near the rotifer's mouth resembled a wheel. That is why they are referred to as rotifers or wheel animals.
Where does the majority of digestion and absorption of the rotifer's food occur?
- cilia
- corona
- stomach
- trophi
The majority of digestion and absorption happens in the rotifer's stomach.
The majority of digestion and absorption happens in the rotifer's stomach.
The majority of digestion and absorption happens in the rotifer's stomach.
The majority of digestion and absorption happens in the rotifer's stomach.
Which of the following structures is the only portion of the rotifer that fossilizes?
- trophi
- cilia
- foot
- intestine
The only hard portion of the rotifer's body is the trophi. This area is the only part that is usually found in the fossil records.
The only hard portion of the rotifer's body is the trophi. This area is the only part that is usually found in the fossil records.
The only hard portion of the rotifer's body is the trophi. This area is the only part that is usually found in the fossil records.
The only hard portion of the rotifer's body is the trophi. This area is the only part that is usually found in the fossil records.
Which of the following structures is responsible for guiding food particles into a rotifer's mouth?
- trophi
- cilia
- foot
- mastax
The cilia located around the rotifer's mouth are responsible for moving food into the rotifer's mouth.
The cilia located around the rotifer's mouth are responsible for moving food into the rotifer's mouth.
The cilia located around the rotifer's mouth are responsible for moving food into the rotifer's mouth.
The cilia located around the rotifer's mouth are responsible for moving food into the rotifer's mouth.
Why do some rotifers reproduce primarily through asexual reproduction?
- the overabundance of male rotifers
- female rotifers are unable to reproduce sexually
- male rotifers are extremely rare
- female rotifers are extremely rare
Asexual reproduction is the primary form of reproduction of rotifers due to the relative rarity of male rotifers. Females mostly rely on parthenogenesis for reproduction.
Asexual reproduction is the primary form of reproduction of rotifers due to the relative rarity of male rotifers. Females mostly rely on parthenogenesis for reproduction.
Asexual reproduction is the primary form of reproduction of rotifers due to the relative rarity of male rotifers. Females mostly rely on parthenogenesis for reproduction.
Asexual reproduction is the primary form of reproduction of rotifers due to the relative rarity of male rotifers. Females mostly rely on parthenogenesis for reproduction.
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