CHOOSE THE BEST ANSWER

Multicellularity evolved multiple times independently in Eukaryotes, including in animals, plants, and fungi.

Which of the following is NOT necessary for the evolution of multicellular organisms from single-celled organisms?

Question

CHOOSE THE BEST ANSWER

Multicellularity evolved multiple times independently in Eukaryotes, including in animals, plants, and fungi.

Which of the following is NOT necessary for the evolution of multicellular organisms from single-celled organisms?

BlackTom AI · Accepted Answer

Here is the step-by-step analysis of each option in the context of how multicellularity could evolve from single-celled ancestors.
Option 1: The production of proteins that allow cells to stick together. This capability is fundamental to forming a multicellular organization, since adhesion between cells is required to maintain tissue structure and cooperative functioning. Without cell–cell adhesion, cells would remain independent units, making multicellularity unlikely. Thus this trait is a necessary condition.
Option 2: An increase in organism size and complexity. Growing larger and more complex bodies provides selective advantages in many scenarios and is commonly seen alongside multicellularity. While not absolutely guaranteed in every hypothetical path, increased size and structural/functional complexity typically accompany the transition, enabling specialization and coordination between cells. Therefore, this is generally considered a necessary or at least highly associated feature of true multicellularity.
Option 3: The ability to photosynthesize. Photosynthesis is a metabolic capacity that some multicellular lineages possess (e.g., plants) but it is not a universal prerequisite for multicellularity. There are well-known multicellular organisms, such as animals, fungi, and many protists, that do not photosynthesize. Therefore, this trait is not required for the evolution of multicellularity and can arise or be absent independently of multicellular organization.
Option 4: The division of labor among cells. Division of labor, or cellular differentiation, is a hallmark of multicellular life, enabling specialized cell types to perform distinct functions and support the organism as a whole. This is a classic driver and consequence of multicellularity, making it a necessary feature.
In summary, options 1, 2, and 4 describe features that are commonly necessary or closely linked to multicellular organization, while option 3—photosynthesis—is not required and can be absent in multicellular lineages.

CHOOSE THE BEST ANSWER Multicellularity evolved multiple times independently in Eukaryotes, including in animals, plants, and fungi. Which of the following is NOT necessary for the evolution of multicellular organisms from single-celled organisms?单项选择题

类似问题

Scientists have used a combination of molecular clock data and fossils to suggest that multicellularity has arisen multiple times in eukaryotic lineages. Based on the information in the figure below, multicellularity has arisen in which list of lineages?

Please match the following to the letters label on the image[Fill in the blank]

In Australia, voting is compulsory in what elections?[Fill in the blank]

What are the colours of the Australian Aboriginal Flag?[Fill in the blank]

What do we remember on Anzac Day?[Fill in the blank]

The colours of the uniforms of the national sports teams of Australia are gold and what other colour?[Fill in the blank]

In the colonies of Victoria and New South Wales, when was Gold discovered?[Fill in the blank]

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单