Wednesday, January 15, 2014

As promised....

1. Multiple trials
2. Placebo (fake medicine)
3. Informed consent (permission slip)
4. Large sample size
5. Well written procedure

Quantitative= number data
Qualitative= description data

DV= data; Heart rate
IV= change you make, “push-ups”
Constant variable= what stays the same for each person; “type of exercise”

-Certain nutrients can keep you healthy
- not all diseases are caused by germs
- well designed experiments are important!

1) structure
2) protection of organs
3) bone marrow creates blood cells
4) helps you move
5) store minerals

Tendons connect muscle to bone

Ligaments connect bone to bone

1) cardiac muscle- heart
2) skeletal- skeleton
3) smooth- lines your digestive tract

-transports oxygen and removes carbon dioxide from your body

-heart pumps the blood:
right side to lungs alveoli  left side to body!
(double pump)

Arteries- take blood away from the heart
Veins- bring blood to the heart
Capillaries- small blood vessel where oxygen and co2 and nutrients can be exchanged

Trachea (wind pipe)
(part of the lungs)
Bronchial tubes

Alveoli allow the oxygen and carbon dioxide to exchange in your blood.

Heart pumps the blood with oxygen all over the body (from the left side)
1) mouth
2) esophagus
3) stomach
4) small intestine
5) large intestine

1)mouth- mechanical / chemical
2) esophagus-
3) stomach- mechanical / chemical
4) small intestine- chemical
5) large intestine- reabsorbs water

cells tissues organs organ systems organism

pulse- number of times your heart beats in a period of time (beats per minute)

High power trade off-
(less area- hard to find things)

Low power trade offs-
(less detail

Cell Membrane

Bacteria vs. animal cell:

Bacteria has NO NUCLEUS
Bacteria has a cell wall

Both have other organelles in common.

Multicellular – bigger, live longer, specialized cells

1 comment:

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Sephora Sanon