OH THE WEATHER OUTSIDE IS FRIGHTFUL

Here is a chart distinguishing internal and external fertilization and internal and external development (Click on me).

Male Reproductive System Fill-In (Click on me) / Answers (Click on me)
Female Reproductive System Fill-In (Front View) (Click on me) / Answers (Click on me)

Male Reproductive System Functions (Click on me)
Female Reproductive System Functions (Click on me)

Sorry if I missed any organ and its functions

For the Female Reproductive Side View, please check your packet because I could not find any blank diagrams to edit and due to laziness.

WHY DO WE HAVE SEX?! : TO INCREASE GENETIC VARIATION AND INCREASE THE CHANCE OF SURVIVAL OF SPECIES!
Two types of reproduction: Asexual and sexual.
-Asexual - One parent, offspring alone. (Bacteria, plants, amoebas, and simple organisms)
-Sexual - Joining of gametes increasing variation

Male Secondary Sex Characteristics: FHS stimulates testes to produce testosterone.
-Testosterone causes larynx wider (deeper voice), broader shoulders, facial hair, pubic hair, and muscle growth.

Female Secondary Sex Characteristics: FHS stimulates ovaries to produce estrogen.
-Estrogen causes wider hips for child delivery, breasts, pubic hair.

Terms:

Pituitary Gland - Secretes hormones and regulates other endocrine glands
Hypothalamus - Integrates the endocrine and nervous system as well as controlling the pituitary gland

Endocrine system regulates by a feedback mechanism: Positive and Negative.
Positive: When hormones are low, hypothalamus signals the pituitary to secrete more hormones
Negative: When hormones are high, production of hormones come to halt

FSH (Follicle-Stimulating Hormone): Stimulates production of mature eggs in ovaries.
LH (Luteinizing hormone): Stimulates ovaries and prepares for implantation of fertilized egg.
Check chapter 34.2 in your textbook which starts on page 982.

Zygote: Fertilized egg
Cleavage: Creates a cleave when cells are dividing
Chorion: Develops into a placenta
Amnion: Develops to amniotic sac which cushions the fetus
Gastrulation: Formation of 3 embryonic germ layer
-Endoderm - lining of digestive, reproductive, and respiratory systems
-Mesoderm - muscles, blood, and bones
-Ectoderm - skin and nervous system

Placenta and umbilical cord connect the fetus to mother
-Provides energy and oxygen and removes waste and carbon dioxide
Amniotic sac cushions the fetus

Contraception is preventing the union of egg and sperm
Forms of contraception:
-Abstinence (Safest way to prevent pregnancy)
-Condom
-Birth Control Pills
-Tubal Ligation (Woman's tube gets tied)
-Vasectomy (Cuts vas deferens where sperm travels)

Hope this helps you ladies and gentlemen study.

Good luck

THE NEXT SCRIBE SHALL BE (DRUM ROLLLLLLLLLLLLLLLLLLLLLLLL)
BAILEY

4 School Days Until Finals

Today we Reviewed the endocrine system one more time. We also looked at one of the menstural cycle one more time, here is the link;http://GBS-Moodle.glenbrook225.org/moodle/mod/resource/view.php?inpopup=true&id=8650. We also took some notes:

Fertilization and Implantation

Fertilization occurs in te oviduct

Zygote- a fertilized egg, diploid cell

Cell division begins

Embryo- > 1 cell

Morula- solid ball of 64 cells

Blastocyst- hallow ball of cells

Embroynic Development

Gastration is the formation of 3 embryonic germ layers

Endoderm- living of digestive reproductive respiratory systems

Mesoderm- muscles, blood, bones

Ectoderm- Skin, nevrvous system

After we finished our notes we all finished lab 35 and handed it in!

Homework:

UP 19-20

34.4 and flow map (don't do a bad one)

NEXT SCRIBE Daniel

Wensday:

homework:
read: 978-979, 982-mid 983, 986- top 987.

In class:
We talked a little bit about pregnancy and then we learned about about the male and female reproduction systems and took note on that. After that we went over the diagrams we labled and wrote the functions for for homework the night before. we then watched a movie with a male seahorse giving birth.

Thursday:
Homework:
lab 31 due at the end of the period tomarow.
do menstrual cycle links on moodle.

In class:
We we took a reading quiz on what we read for homework last night. then we learned about the menstual cycle and hormones and took notes on that. After we finished taking notes we spent the rest of the period to start lab 31 which we willl get 30 mins to complete at the end of class tomarow.

Next scribe: Celia

Back from Break!

Homework:

Pages 5-8 in the UP

At some point read section 28.3 in your books!

Happy New Year everyone! I hope your break was fantastic. Today, in biology, we started our new unit, reproduction. There was the unit packet, and the unit calendar at the front of the room today which we were supposed to grab. First in class today, we discussed what we did on break and how break went for everyone. After that, we got our grade reports handed back. Then, Mrs. Stein started explaining what the unit was about and what we were going to be learning in the unit like she does before we start every unit.

We later took notes on reproduction today. 

Here are the notes in case you missed them.

 

REPRODUCTION IN ANIMALS

-Important to the survival of a species. (It is actually vital for the species.)

- May increase genetic variation

-2 types of reproduction:

~Asexual-one parent, offspring are clones

-Bacteria, plants, amoebas, and simple organisms are a few examples

~Sexual-joining of gametes increases variation

-Some plants, many animals to name a couple.

One thing you must know is that FERTILIZATION IS THE JOINING OF AN EGG CELL AND A SPERM CELL

If you have any questions go to the TLC or look on Moodle!!!!!!!!!!!!!!!!!!

Ashley is the next scribe :D