In the lab we saw several plants which produce a thallus. What is a thallus?

Question

BlackTom AI · Accepted Answer

The question asks: In the lab we saw several plants which produce a thallus. What is a thallus?
Option A: The male reproductive structures of plants. This is incorrect because a thallus is not a reproductive organ; it refers to the main body tissue or plant body, not specifically male structures like anthers or strobili.
Option B: Specialised roots used in vegetative development by some plants. This is wrong since thallus is not a root or root-like structure; many primitive plants lack true roots altogether and have a simple body called a thallus.
Option C: A seed leaf of angiosperms. This is incorrect because a seed leaf (cotyledon) is part of a seed in flowering plants, which is unrelated to the thallus concept used for bryophytes and some algae.
Option D: The spore capsule of mosses. This is not right because the spore capsule (seta and capsule) is a reproductive structure, whereas a thallus describes the plant body morphology, not the reproductive capsule.
Option E: A flat leaf-like structure produced by liverworts and other primitive plants. This is correct because thallus refers to the dorsiventrally flattened, leaf-like body commonly seen in liverworts and similar primitive flora, representing the main photosynthetic tissue rather than a defined stem or root system.
In summary, the term thallus describes a flattened, undifferentiated plant body typical of liverworts and other primitive plants, which aligns with option E. The other options misidentify a thallus as a reproductive organ, root structure, seed leaf, or spore capsule, which are distinct plant features not denoted by the term thallus.

Module FYM003: ONLINE PRACTICAL QUIZ

In the lab we saw several plants which produce a thallus. What is a thallus?

查看解析

登录即可查看完整答案

类似问题

Which of the following are key characteristics of a tree? (multiple answers)

Select all of the following that are true:

Which of the following have true stems?

Canola flowers form in groups (racemes) and ...

What structure can the lateral (axillary) bud give rise to (check all that apply)?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

更多留学生实用工具

考试浏览器助手

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