首页
登录
职称英语
Defined biologically, hair is primarily composed of keratin, a protein, which gr
Defined biologically, hair is primarily composed of keratin, a protein, which gr
游客
2024-01-11
37
管理
问题
Defined biologically, hair is primarily composed of keratin, a protein, which grows out through the skin from follicles deep within the dermis. This definition holds for all mammals. What sets humans apart is not in the hair, but in the follicle. Under the microscope, an individual human’s hair follicles are anatomically indistinguishable, meaning that a hair follicle on your head is visually identical to one on your upper arm. Physiologically, however, the two follicles behave very differently. The first type, found in all mammals, produces terminal hair, the longer, darker, thicker hair generally found on the scalp, eyebrows, and eyelashes. The second type, particular to humans, produces the fine, unpigmented vellus hair found on most places of the human body, including the face and back. Vellus hair is usually very short and the follicles are not connected to sebaceous glands. [br] It can be inferred from the passage that
选项
A、mammals do not have sebaceous glands.
B、animals such as monkeys cannot grow terminal hair.
C、the hair of a horse is composed mainly of keratin.
D、scientists cannot distinguish human hair from the hair of other mammals.
E、terminal hair grows much faster than vellus hair.
答案
C
解析
The best answer is C. According to the passage, "hair is primarily composed of keratin, a protein, which grows out through the skin from follicles deep within the dermis. This definition holds for all mammals." Therefore, a horse has hair that is mainly composed of keratin. The other answer choices are not supported by the passage.
转载请注明原文地址:https://tihaiku.com/zcyy/3352175.html
相关试题推荐
IfkSnisdefinedtobetheproductof(n+k)(n-k+1)forallpositiveinteg
Forallrealnumbersx,theoperationx*isdefinedbytheequationx*=x+4,If(
Thepassageisprimarilyconcernedwith______[br]Itcanbeinferredfromthep
Thepassageisprimarilyconcernedwith______[br]Theauthorrefersto“filter-
Coralreefsareoneofthemostfragile,biologicallycomplex,anddiversemarin
Thepassageisprimarilyconcernedwithdiscussing______[br]IfBolteandhisc
Thepassageisprimarilyconcernedwithdiscussing______[br]Whichofthefollo
Thepassageisprimarilyconcernedwithdiscussing______[br]Accordingtothep
Inthepassage,theauthorisprimarilyconcernedwithdoingwhichofthefollow
Inthepassage,theauthorisprimarilyconcernedwithdoingwhichofthefollow
随机试题
Ifafarmerwishestosucceed,hemusttrytokeepawidegapbetweenhisco
WhyWeNeedGoodTeachers[A]TherelativedeclineofAmericane
[originaltext]W:Howlonghaveyoubeeninourcountry?M:Ijustarrivedtwod
Ifyou’reinchargeofChristmasdinner,withallitsinterconnectedtasksa
TheHistoryofEarlyCinemaA)Thehistoryofthecinema
大学教育是人类文明的体现,大学教育水平则反映社会的文明程度。Universityeducationisanembodimentofhumanciv
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
下列关于保险和赌博的说法,正确的是()。A.保险和赌博都是分散已有风险 B
关于掌深弓,错误的说法是()A.由桡动脉末端和尺动脉掌深支组成 B.位于指
关于法律执行的特征,下列哪些说法是正确的?()A.法律执行的主体非常广泛,
最新回复
(
0
)