Science 9

Today we finished the last topic of the Reproduction unit:  Human Karyotypes

Complete the following textbook questions to review for the Quick Question Quiz tomorrow:
Page 104-105 #1-4, #11 (skip b and h), #16, 17 and 18

Page 142    #1-7, #10-13, #17, #24

Answers pg. 104.  1)C    2)D    3)C  4)C    #11a) hermaphrodites      c) sperm, egg       d) gametes
e) diploid      f) diploid or karyotype       g) diploid     
#16) Sister chromatids only separate during meiosis II.   Sister chromatids also separate during mitosis
#17)  a) 32      b) 16    c) 16    d) C, D and E      
#18) Mitosis produces two identical diploid cells.   Meiosis results in 4 haploid cells

Answers to pg. 142   1)B     2)D     3)B      4)D       5)C      6)C      7)C  
10a) Sex chromosomes X and Y determine gender     b)Males are XY females are XX
c)X and Y chromosomes are different sizes and shapes and therefore do not carry the same information

11) the urethra carries urine and sperm
12a) prostate     b) testis         c)penis           d)urethra
13) Preganancy stops the menstrual cycle.  the corpus luteum produces progesterone, which stops the ripening of more eggs and prepares the endometrium for the fertilized egg.
17) a) cervix     b)uterus       c)endometrium

24a) female        b) there are two X chromosomes, therefore the karyotype belongs to a female. 

Science 8

Today we looked at everyone's Earth Science Projects.  Great work!  I learned lots about Earthquakes and volcanoes.

Biology 11

Today we worked on our Animal Unit "cheat sheet".   Tomorrow is the Quest on Animals.....bring your cheat sheeeeeeet!

Science 8

Today we worked on our Earth Science Projects.  We will look at those tomorrow as a class.  

Science 9

Today we watched the birth video!!   Here are the links to the 2 videos in case you need to see it again:)

http://www.pbs.org/wgbh/nova/body/life-greatest-miracle.html

Friday's Quick Question Quiz:   Sexual and Asexual reproduction, meiosis, male and female reproductive systems, fertilization 

Biology 11

Today we marked the Mollusks and Arthropods colouring.  Make sure your Echinoderms is in.

Next we tried cuttin' and organizin' all the Animal Phyla with their characteristics.   Complete this to help you make your cheat sheet for the Animal Quest on Friday.  

Scavenger hunt tomorrow.....wear appropriate clothing:)

Biology 11

Today we looked at our last animal Phlyum:  Chordata.   Chordata and the Vertebrates Questions are due as well as Echinodermata colouring.