首页
登录
职称英语
Hydrothermal vents along the mid-ocean ridges host ephemeral ecosyst
Hydrothermal vents along the mid-ocean ridges host ephemeral ecosyst
游客
2024-01-11
37
管理
问题
Hydrothermal vents along the mid-ocean ridges host ephemeral ecosystems
of diverse fauna, including several crustacean species, some of which undergo
development as larvae up to 1,000 meters above and 100 kilometers away from
Line the vents. For example, vent crab Bythograea thermydron (at stage of
(5) larvae) possess image-forming compound eyes with a visual pigment sensitive to
the blue light of upper oceanic waters. As these larvae metamorphose into
adulthood and begin to descend to and settle at the vents, they lose their image-
forming optics and develop high-sensitivity naked-retina eyes. With maturation,
the spectral absorbance of the visual pigment in these eyes also shifts towards
(10) longer wavelengths and this progressive visual metamorphosis trades imaging
for increased sensitivity, and changes spectral sensitivity to the dim, longer
wavelengths of light existing at the bottom of the ocean. As hydrothermal vents
produce light, vision may supplement thermal and chemical senses to orient
post-larval settlement at vent sites. [br] Which of the following is the most appropriate title for the passage?
选项
A、Adaptive Visual Metamorphosis in Deep-Sea Vent Crabs
B、Aspects of the General Anatomical Development of Deep-Sea Vent Crabs
C、New Research Directions in the Study of Deep-Sea Vent Crabs
D、Common Features of Optics of Lower Depth Oceanic Animals
E、Patterns of Anatomical Transformation in Lower Oceanic Creatures
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3353850.html
相关试题推荐
Hydrothermalventsalongthemid-oceanridgeshostephemeralecosystems
Hydrothermalventsalongthemid-oceanridgeshostephemeralecosyst
Creatingarelativelysimplemodeloftheknownecosystemrequiresatremendous
UTILITARIAN:QUIXOTIC::A、disconcerting:unsettlingB、ephemeral:fleetingC、m
Althoughplantandanimalspeciesthatbecomeestablishedinecosystemswhereth
Aninfluentialearlyviewheldthatecosystemscontainnichesforalimitednumb
Aninfluentialearlyviewheldthatecosystemscontainnichesforalimitednumb
Onewaytopredicttheeffectsofglobalclimatechangeonanecosystemistoex
Thereare,asyet,novegetationtypesorecosystemswhosestudyhasbeen(i)___
Marineecosystemscertainlyhavelesspermanencethanterrestrialecosystems
随机试题
ImportanceofTimeIntroduction.【T1】________
[originaltext]Itiswhatfaileddietershavelongsuspected:Fatpeoplereally
SecretaryLeavittstressed_______intheprocessoffightingH5N1birdfluvirus
附着于护栏的附着式轮廓标,由逆反射材料、支架和连接件组成。()
在石质坚硬完整度且岩石抗压强度大于30MPa,并确认不影响隧道结构稳定和强度时,
贷款风险的预警信号系统中关于经营状况的信号不包括( )。A.丧失一个或多个财力雄
患者女,20岁。一年前因外伤致前牙缺损,有治疗史。口腔检查:左上中切牙切缘及近中
下列()属于债券筹资的优点。A.筹资成本低 B.保障股东控制权 C.发挥财务
某机电公司承建某四星级宾馆的机电安装工程任务。该工程的设计单位在设计中选用多项新
建筑装饰用地面涂料宜选用()。A:醋酸乙烯一丙烯酸酯乳液涂料 B:聚醋酸乙烯乳
最新回复
(
0
)