Multiple Choice
Based on cladistics, which eukaryotic kingdom is considered polyphyletic and, therefore, unacceptable in modern classification systems?
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1. Introduction to Biology
Introduction to Taxonomy
Multiple Choice
Which of the following types of organisms usually have cell walls?
A
Animals
B
Plants
C
Protozoa
D
Fungi
Verified step by step guidance1
Understand the concept of a cell wall: A cell wall is a rigid structure that surrounds the cell membrane, providing support and protection. It is found in certain types of organisms but not in others.
Analyze the characteristics of plants: Plants have cell walls made of cellulose, which provide structural support and help maintain their shape.
Analyze the characteristics of fungi: Fungi have cell walls as well, but their cell walls are made of chitin, a different material than the cellulose found in plants.
Analyze the characteristics of protozoa: Protozoa are single-celled eukaryotic organisms that typically do not have cell walls. Instead, they have flexible cell membranes that allow for movement and shape changes.
Analyze the characteristics of animals: Animals do not have cell walls. Their cells are surrounded only by a flexible cell membrane, which allows for a wide range of movement and interaction with their environment.
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