{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Bio 201 F11 Lect 13 (True) v3nr

Bio 201 F11 Lect 13 (True) v3nr -...

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] behavioral biologists are studying copying behavior in orangutans to understand similar behaviors in humans (and other primates) and their rela=onships to sociality and intelligence orangutans are classified as "solitary but social" ‐ meaning that they only spend very liAle of their lives associated with other individuals aBer the mother‐offspring rela=onship is completed 13 orangutans living in cap=vity were studied as to how informa=on was transferred from one individual to the next a box with a reward was presented; the reward could be accessed by two different means (slide or liB doors) a mother figured out one way and was observed by her son, but she prevented him from touching the box; example of general finding that orangutans were very good at observing/copying but generally, it has been found in this and other studies, that they will only copy when it serves a purpose (i.e. in this case the orangutans could always figure out the other way and get a treat; there was no reason to do it by copying others) in humans, on the other hand, copying can be an important aspect of our social behavior, which is much more advanced than orangutans ‐ humans will copy even if it unnecessary, as long as it has social value ("belonging") "intelligence" hence has two different defini=ons, depending on sociality hAp://www.nsf.gov/news/special_reports/ science_na=on/copycats.jsp?WT.mc_id=USNSF_196
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
0 10 20 30 40 50 60 70 80 90 0‐5 6‐10 11‐15 16‐20 21‐25 26‐30 31‐35 36‐40 41‐45 46‐50 51‐55 56‐60 61‐65 66‐70 71‐75 76‐80 81‐85 86‐90 91‐95 96‐100 #ofstudents score Bio 201 Fall 2011 mid term 1 average = 69.36 st. dev. = 16.34 median = 71.57
Background image of page 2
bonus ques=ons worth 1 pt (out of 35) each e.g. if you got 25 right on the main test (1 st 35 ques=ons) and all 3 bonus ques=ons right, your score would be (25+3)/35 = 28/35 = 80% we are checking and recalcula=ng the scores to make sure we got this right for exam 1 (see BB and lecture on Friday)
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
Endosymbio=c theory Mitochondria evolved from ancient bacteria Chloroplasts evolved from ancient photosynthe=c bacteria or photosynthe=c eukaryotes Originated by Konstan=n Mereschkowski in 1905 Revived and inves=gated by Lynn Margulis in the 1960s‐1970s Was once thought to be a strange idea Ini=al evidence was structural DNA evidence sealed it hAp://en.wikipedia.org/wiki/Image:Merezhkovsky_K_S.jpg hAp://en.wikipedia.org/wiki/Image:Lynn_Margulis.jpg
Background image of page 4
cytoskeleton made of monomers that can rapidly polymerize and depolymerize ac=n, tubulin, intermediate filament (IF) proteins
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 ]}