首页
登录
职称英语
Noting that bison herds appear to graze selectively in areas occupied by pra
Noting that bison herds appear to graze selectively in areas occupied by pra
游客
2025-02-19
26
管理
问题
Noting that bison herds appear to graze selectively in areas occupied by prairie dog colonies, Coppock hypothesized that the attraction is due to improved forage quality: prairie dogs’ own grazing activities alter herbage dynamics, plant species composition, and nutrient cycling.
The colonies’ territory contains relatively little low-quality mature standing herbage and is characterized by communities of plants that are high in crude protein and highly digestible.
However, such effects are not produced only by prairie dogs. Willms showed that sites selectively grazed by cattle had reduced standing dead plant material, altered species composition, and increased soil nitrates, ammonium, and available phosphorus. In fact, long-term, intensive use by any grazer will cause comparable changes in plant communities. [br] The highlighted sentence serves primarily to
选项
A、provide information about the kinds of forage preferred by prairie dogs
B、refute a particular claim about the forage methods of prairie dogs
C、specify what makes forage conditions created by prairie dogs appealing to bison
D、suggest that prairie dogs’ activities can cause environmental degradation
E、identify characteristics that influence prairie dogs’ selection of sites to colonize
答案
C
解析
本题属于功能题,定位句是例子,用于说明土拨鼠具体做了哪些改变使得这片土地能够吸引野牛,因此选项C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3963915.html
相关试题推荐
Notingthatbisonherdsappeartograzeselectivelyinareasoccupiedbypra
Notingthatbisonherdsappeartograzeselectivelyinareasoccupiedbypra
Doyouthinkphysicalstoreswilldisappearinthefuture? Well,it’sadifficu
Modernbuildingsareappearinginlargenumbers,somepeoplebelievethatwe
ThepassageendsbynotingthatourviewofhistoryisbiasedbecauseA、wefailt
随机试题
[originaltext](32)Whydowecry?Canyouimaginelifewithouttears?Notonly
Drone—ProblemandChancesA)InthefirstincidentonMay
货币政策的外部时滞主要受()的影响。A.货币当局对经济发展的预见力 B.货币当
直径为d的实心圆轴受扭,为使扭转最大切应力减小一半,圆轴的直径应改为:
卡方检验用于统计推断的情况是A.两个以上样本均数有无差异性的检验B.两个或两个以
下列关于城市规划控制指标的表述中,正确的有( )。A.建筑限高是指地块内允许的
共用题干 第二篇Shynessisthecauseofmuchun
患者,男,72岁,因冠心病间断发生左心衰竭3年,半天来与家人争吵后心悸、气短、不
某肝硬化病人就医时,医师嘱其进食时需细嚼慢咽,不吃坚硬、粗糙、富含纤维食物。但病
材料采购合同履行中,供货方交付产品时,不能作为双方验收依据的资料包括()A.供
最新回复
(
0
)