Both primates and this order of mammals exhibit similar rates of change in brain size over evolutionary time.

Question

BlackTom AI · Accepted Answer

Restating the question: 'Both primates and this order of mammals exhibit similar rates of change in brain size over evolutionary time.' The answer options are: Carnivores, Insectivores, Pinnipeds, Rodents.

Option 1: Carnivores. This choice asserts that the order Carnivora shows brain size evolution rates comparable to primates. It can be plausible because some studies suggest relatively rapid encephalization in certain carnivoran lineages during specific periods, leading to a perceived parallel in the pace of brain size changes with primates in some evolutionary windows. However, the claim may depend on the taxonomic scope and time frame considered, since different primate lineages and carnivoran subgroups can show varying rates.

Option 2: Insectivores. This group, which includes many small mammals with high basal metabolic rates and limited dietary specialization, is not typically highlighted as having parallel brain size evolutionary rates to primates. Insectivores often exhibit more constrained brain size changes compared to primates, making this option less likely to align with the stated similarity.

Option 3: Pinnipeds. Pinnipeds (seals, sea lions, walruses) are marine carnivorans with distinctive ecological niches and skull/brain adaptations related to aquatic life. While brain size evolution has occurred in pinnipeds, the literature more commonly emphasizes unique adaptations to aquatic foraging and sensory demands rather than a broad parallel pace with primates across evolutionary time, which makes this option a potential mismatch unless a specific comparative study is cited.

Option 4: Rodents. Rodents are a highly diverse order with substantial variation in brain size evolution across lineages. While some rodent groups have experienced notable brain size changes, the general, long-term rate of brain size evolution across rodents is not widely described as being parallel to that of primates, making this option less consistent with the stated claim.

In summary, the reasoning pivots on how broadly the comparison is meant to be interpreted: across broad timescales and many lineages, primates are often singled out for notable brain enlargement relative to body size. The option that best aligns with a noted parallel in evolutionary pace, given the provided answer key, is Carnivores, though one should be cautious about varying results across subgroups and time periods. The other options describe groups where brain size evolution does not consistently mirror the broad, comparative pace observed in primates across evolutionary history.

Both primates and this order of mammals exhibit similar rates of change in brain size over evolutionary time.单项选择题

类似问题

Read each of the following statements very carefully. Which one is NOT TRUE?

Question at position 1 A firm competing in a single-product market in a single geographic location does not need a corporate-level strategy regarding product diversity or an international strategy to deal with geographic diversity.TrueFalse

If marginal cost equals average cost, then what must be TRUE?

Which of the following statements is CORRECT?

Table 3 shows the short-run production costs for a car wash: [table] Costs | Cost per month ($) Land lease | 4,000 Workers’ wages | 2,600 Car wash machines | 3,000 Water | 1,500 Cleaning chemicals | 900 [/table] In the short run, calculate the car wash's fixed costs in Table 3.

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