2. Bell Ringer: 4/19—BE IN DRESS CODE
TEST ON FRIDAY!!
CANVAS QUIZZES DUE 11:59 PM FRIDAY!
STAAR TUTORIALS TODAY:
LUNCH: MEIOSIS & GENETICS 1ST HALF-338
2ND HALF-239
AFTER SCHOOL: ENZYMES-230
11/11/2018

3. 11/11/2018

4. Systems of reproduction

5. Bell Ringer: 4/18—BE IN your seats when bell ring.!
CANVAS QUIZZES ARE DUE BY 11:59 pm FRIDAY!! THE AVERAGE OF ALL 9 QUIZZES WILL BE A MAJOR GRADE.
UNIT 13 TEST WILL BE ON FRIDAY!

6. Reproductive System function
Produces gametes (eggs and sperm)
Fertilization – produce zygote

7. How does the reproductive system help with reproduction?
The testes produce the male gamete
Eggs are produced in the ovary of the female before birth

8. Endocrine system function
Regulates the body’s activities using hormones secreted by ductless glands
Hormones: Chemical messengers

9. How does the endocrine system help with reproduction?
The endocrine glands such as testes and ovaries secretes hormones to produce gametes.
Endocrine glands also provide growth and development hormones to nurture an embryo

10. Nervous system function
Control center for the body
Receives, processes, and
sends electrical signals

11. How does the nervous system help with reproduction?
Hormones provide feedback to the brain; the brain signals for the release, or reuptake, of reproductive hormones.

12. Circulatory system function
To transport molecules around the body
Waste, nutrients, hormones, etc…

13. How does the circulatory system help with reproduction?
Transports nutrients needed for the growth and development of the fetus.
Transports hormones to testes and ovaries.

14. How do we stay balanced?

15. A process by which the body maintains a STABLE internal environment
Homeostasis
A process by which the body maintains a STABLE internal environment

16. How does the air conditioner work?
Too Cold
(Heater On) 22
75°C
Too Hot
(Heater Off)

17. Stimulus produces a change in variable3.
Input information sent along afferent pathway to control center 4.
Output information sent along efferent pathway to effector 2.
Change detected by receptor 5.
Effector influences magnitude of response & returns variable to homeostasis 1.
Stimulus produces a change in variable

18. Negative Feedback OR STIMULUS RESPONSE RESPONSE STIMULUS
Restoring the body back to its normal state (i.e. temperature)
REDUCE change, stimulus and response work in OPPOSITE directions OR
STIMULUS
RESPONSE
STIMULUS
RESPONSE

19. Identify the setpoint.
Identify the control center.
Identify the effector.
What are some ways that the homeostasis of the vehicle could be disrupted?

20. Negative Feedback (Temperature)

21. Negative Feedback (Maintaining Blood Sugar/Glucose level)

22. Negative Feedback (Blood pressure control)
Blood pressure decreases

23. Negative Feedback (Immune Response)

24. Positive Feedback OR STIMULUS RESPONSE STIMULUS RESPONSE
Causes the body to continue with more change (think of dominoes falling)
AMPLIFIES change, stimulus and response work in THE SAME direction OR
STIMULUS
RESPONSE
STIMULUS
RESPONSE

25. Child birth

26. Blood clotting

27. What type of feedback is this?
As you get dehydrated, your blood becomes thicker and harder to pump. Your kidneys will stop producing urine, and the water from urine is used to thin your blood.

28. What type of feedback is this?
If your blood sugar gets too high or low, your pancreas releases a chemical to return the blood sugar back to normal.

29. What type of feedback is this?
When you get cut, your skin releases chemicals to activate platelets to stop bleeding. Platelets then release more chemicals to activate even more platelets to help stop bleeding.

30. What type of feedback is this?
When a baby suckles milk from their mother, a nerve in the mother’s nipple sends a signal to her brain which then tells her body to produce more milk.

31. What type of feedback is this?
If the calcium in your blood decreases, a gland will sense the decrease and send a chemical message to your bones so it releases calcium back into the blood.