Bio%20201%20S12%20Lect%2011%20%28True%29%20v2

Bio%20201%20S12%20Lect%2011%20%28True%29%20v2 - Biology in...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology’in’the’News’ (see’folder’on’BB)’ sirenians’("sea’cows")’is’the’group’that’ contains’dugongs’and’manatees’(4’extant’ species;’1’species’went’ex>nct’in’1800s)’ -named’aber’Sirens’of’Greek’mythology’ new’research’in’geology’is’revealing’ insights’a±out’the’water’ha±itats’in’which’ early’evolving’mem±ers’of’this’group’lived’ this’work’is’also’revealing’a’lot’of’general’ informa>on’on’the’climate’of’50’million’ years’ago;’which’is’an’area’of’controversy’ main’data’are’isotope’composi>on’ra>os’ of’fossil’sirenians’ Oxygen’isotope’ra>os’in’low’la>tude’ (areas)’turn’out’to’±e’quite’diFerent’50’ mya’than’they’are’today,’contrary’to’what’ was’thought’±efore’this’research;’this’ aFects’es>ma>ons’of’what’climate’was’ like’at’that’>me’ therefore’previous’es>mates’of’water’ temperature’might’not’±e’correct’ hMp://www.nsf.gov/news/news_summ.jsp? cntn_id=119336&WT.mc_id=USNS²_51&WT.mc_ev=clic k’ hMp://science±logs.com/tetrapodzoology/Afrotheria %20from%20Ta±uce%20et%20al.%202008.jpg’
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1 st ’mid’term’exam’ Wed.’Feb.’22 nd ’IN’CLASS’ on’material’ through’Wed.’Feb.’15 th’ (frst’10’lectures)’ 35’mul>ple’choice’ques>ons’+’3’bonus’factoid’ques>ons’ Average’of’2’best’mid’term’grades’out’of’3’cons>tute’60%’of’±nal’ course’grade’ BRING’ONLY’pencils,’ID’ all’other’items’cannot’be’brought’to’your’seat’ BE’ON’TIME’ doors’close’10’min’a²er’exam’starts’ ONLY’DOCUMENTED’MEDICAL/FAMILY’BEREAVEMENT’ EMERGENCIES’ARE’ACCEPTABLE’EXCUSES’FOR’MISSING’EXAM’ no’other’excuses’accepted’ Prac>ce’ques>on’set’posted’ see’BB’for’TA’review’session’>mes’
Background image of page 2
clarifca>on’ the’cotyledon’oF’a’ monocot’stays’inside’ the’embryo’–’it’is’not’a’ leaF’oF’the’germinated’ plant’ “mono”’and’“ di”’also’ describes’the’frst’true’ leaves’–’one’in’ monocots;’two’in’ dicots’ hMp://en.wikipedia.org/wiki/Cotyledon’ germina>ng’ monocot’ germina>ng’ dicot’
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 4
Monocots Dicots Diversity 64 families 2708 genera 52,000 species 313 families ~10,900 genera ~190,000 species Embryos one cotyledon two cotyledons Roots Fibrous Thicker, usually with a tap root Stems during primary growth vascular bundles are distributed throughout the
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 26

Bio%20201%20S12%20Lect%2011%20%28True%29%20v2 - Biology in...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online