Digestive System
What nutrients supplies quick energy for athletes?
Carbohydrates
Which system delivers nutrients to cells around the body?
Circulatory System
Which system sends quick electrical signals through the body?
Nervous system
What is the simplest level of organization?
Cell
Very hot water, unpredictable weather, high salt content, and predators are all sources of _______________ for the pupfish.
(Daily Double, answer is worth double the points!)
Stress
Fat
Why is the human heart called a double loop system?
One loop goes to the lungs, the other goes to the body.
Put Lin's reflex in order: Brain interprets, muscles move, eyes look, eyes focus, ears hear.
1. Ears detect sound, 2. Brain directs eyes, 3. Eyes focus, 4. Brain interprets, 5. Muscles move.
Single-celled organisms don't need systems. Why do humans need them?
Which system provides oxygen used in cellular respiration?
(Daily Double, answer is worth double the points!)
Respiratory System
The pancreas makes _____, a chemical that monitors blood sugar.
Insulin
Which vessels have muscular walls due to increased pressure?
Arteries
What does the endocrine system release to regulate the body?
Hormones
Lungs belong to which level of organization?
Organ
What system works with the circulatory system to help fight disease?
Lymphatic (immune) system
Put these in order: saliva, chewing, stomach, small intestine, peristalsis.
1. Chewing, 2. Saliva, 3. Stomach, 4. Peristalsis, 5. Small intestine.
Name 3 functions of the circulatory system.
Transport nutrients, bring oxygen, fight disease, removes wastes. (Any 3)
Like the nervous system, what does the endocrine system help maintain?
Homeostasis
Organs
If Angela's lungs aren't working properly, why does her whole body suffer?
Without enough oxygen, cells can't make energy, so all body systems are affects?
Based on the function, the gizzard belongs to which body system?
Digestive System
About how many times a day does your heart beat?
100,000 times
Start with the sentence "I feel hungry". Draw a cycle diagram to show how your body would respond to this situation.
I feel hungry --> I eat food --> I feel full --> I stop eating
1. Cell, 2. Tissue, 3. Organ, 4. Organ System
The desert pupfish survive harsh conditions by maintaining balance inside the body. What is this called?
Homeostasis