Most taxonomy scholars recognize cannabis as a single species, Cannabis sativa.

Question

BlackTom AI · Accepted Answer

Most contemporary taxonomists treat Cannabis as a single polymorphic species, Cannabis sativa.

1. Relevant knowledge points and concepts
- Species concept: under the biological species concept, species are groups of interbreeding natural populations reproductively isolated from others. Taxonomy also uses morphological, genetic, and chemotype evidence.
- Cannabis variation: plants labeled sativa, indica, and ruderalis show morphological and chemical differences but freely interbreed, producing fertile offspring.
- Scholarly consensus: influential taxonomic treatments (e.g., Small & Cronquist and later genetic studies) favor one species with subspecies or varieties rather than several distinct species.

2. Step-by-step reasoning
- Observe reproductive compatibility: cannabis populations historically classified as different “species” routinely cross and produce fertile progeny in cultivation and the wild.
- Assess morphological and chemical differences: differences (height, leaf shape, cannabinoid/terpene profiles) form a continuum and overlap across populations.
- Apply species criteria: because there is no clear reproductive isolation and variation is continuous, the biological species concept supports treating them as one species.
- Survey taxonomic literature: the predominant modern treatments classify cannabis as Cannabis sativa with recognized subspecies/varieties rather than multiple separate species.

3. Calculations/intermediate steps
- No numerical calculations are required. The logical chain is: interbreeding + continuous variation + taxonomic treatments = single species classification.

4. Why the correct answer is correct
- The combination of interfertility and continuous morphological/genetic variation underpins the consensus that cannabis is best treated as a single species, Cannabis sativa, with internal varietal/subspecific distinctions.

5. Why other options are incorrect
- “False” would assert that most scholars recognize multiple species; this contradicts the prevailing taxonomic treatments that favor one species. The two “No answer text provided.” choices are non-answers and thus not applicable.

6. Conclusion
- Therefore the correct choice is true, confirming that most taxonomy scholars recognize cannabis as a single species, Cannabis sativa.

Most taxonomy scholars recognize cannabis as a single species, Cannabis sativa.单项选择题

类似问题

What is the scientific name of the marijuana plant ?

Match the common name of the tree, with the genus the tree belongs to (taxonomically): 1: Maple 2: Oak 3: Walnut 4: Hemlock 5: Pine

The difference between hardwood and softwood, is that the latter is wood from: ____

What is the genus of the oak tree?

The bamboo plant has a wide variety of uses. What plant family does the bamboo plant belong to?

What is the scientific name of the rubber tree - the main species of plant that has been used to extract rubber from in the past two centuries?

Classifying vegetables: What vegetable family do these vegetables belong to? 1: leek 2: tomatoes 3: cauliflower 4: potato 5: spinach 6: chanterelles 7: beans 8: artichoke 9: cucumber 10: carrots

Hops (beer making) are a close relative (same family) of cannabis.

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