The Excavates Are a Clade of Eukaryotes That Includes Groups

question 35

Multiple Choice

The excavates are a clade of eukaryotes that includes groups without mitochondria.What is the most convincing evidence that this absence of mitochondria is a derived condition resulting from a secondary loss?

• A) There is a nuclear membrane in these organisms.
• B) The cell membrane of these organisms is flexible and capable of phagocytosis.
• C) Some of the nuclear genes of these organisms are normally associated with mitochondria.
• D) In euglenids,a group in this clade with mitochondria,the mitochondria have distinctive disc-shaped cristae.
• E) Other eukaryote clades have both chloroplasts and mitochondria.

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Definitions:

Aristotle

An ancient Greek philosopher and polymath who made significant contributions to numerous fields of knowledge, including ethics, metaphysics, logic, and natural sciences.

Aesthetic Experience

A complex emotional and cognitive response one has when appreciating art or beauty, often characterized by a sense of pleasure or meaningful interpretation.

Disinterested Perspective

An unbiased viewpoint that is not influenced by personal feelings, interpretations, or prejudice, aiming for impartiality.

Kant

Renowned for his influence in the fields of epistemology, ethics, and aesthetics, this German thinker is a key figure in contemporary philosophical thought.