Which structural difference explains why fungi are not photosynthetic like algae?

A lab identifies a parasitic worm egg in stool that  has a thick outer covering.  This structure primarily functions to:

A unicellular organism lacking a cell wall but capable of engulfing food particles by phagocytosis is most likely a:

Which reproductive method increases genetic diversity in fungi?

A tapeworm lacks a digestive system.  How does it obtain nutrient?

A newly discovered prokaryote shares similarities with eukaryotic RNA polymerase and lacks peptidoglycan. These findings suggest it belongs to:

Which best explains why algae are considered ecologically critical organisms?

A microbiologist isolates a prokaryotic organism from a deep-sea hydrothermal vent. The organism lacks peptidoglycan in its cell wall and thrives in extreme heat. Based on these characteristics, the organism most likely belongs to which domain?

Which adaptation allows certain Gram-positive bacteria to survive extreme heat and desiccation?

If a bacterium can switch between aerobic respiration and fermentation depending on oxygen availability, it is classified as: