Fact/Theory/Hyp, Char of Life, Sci Meth Content Quiz - 1

Living organisms maintain a constant internal environment by sensing and responding to their internal conditions. This stable maintenance of internal conditions is known as

Homeostasis

Jeremy is starting to lose his hair and he's not happy about it. He has seen commercials on tv for 2 products called Bald Be Gone and Hair to Stay that he'd like to try. Jeremy has decided to first try an experiment with both products to see which is best Every morning when Jeremy showers, after shampooing his hair he uses 1/2 cup of Bald Be Gone on 1/2 of his head and 1/2 cup of Hair to Stay on the other 1/2 of his head and then rinses both sides of his head. After 6 weeks Jeremy measures his hair growth. The Hair to Stay side of his head grew 1/4" while the Bald Be Gone side of his head grew 1/2". Should Jeremy buy another bottle of Bald Be Gone?

No - the experiment didn't have a control group so he doesn't know if the hair growth was due to Bald Be Gone or normal growth

Why is it usually better to use class data rather than an individual group's data to draw a conclusion?

Reduce the effect of outliers

Jeremy is starting to lose his hair and he's not happy about it. He has seen commercials on tv for a product called Bald Be Gone that he'd like to try, but it's very expensive. Jeremy has decided to first try an experiment with Bald Be Gone to see if it really works before investing in a year's worth of product. Every morning when Jeremy showers, after shampooing his hair he uses 1/2 cup of Bald Be Gone on 1/2 of his head. He massages 1/2 cup of water on the other 1/2 of his head and then rinses both sides of his head. After 6 weeks Jeremy measures his hair growth. The water side of his head grew 1/4" while the Bald Be Gone side of his head grew 1/2". Which is the experimental group? - Side of Jeremy's head with water - temperature, volume of product, amount of time - Side of Jeremy's head with Bald Be Gone - Hair growth

Side of Jeremy's head with Bald Be Gone

Which of the following would be a theory? - Specific pathogens are directly responsible for specific diseases and conditions. - A fungal infection is responsible for the spread of white noses and associated higher mortality across bat populations and species. - A fungal infection causes bats to wake up repeatedly during the winter and use up their fat reserves. - Bats with white noses have been observed in the wild.

Specific pathogens are directly responsible for specific diseases and conditions.

The human heart pumps blood throughout the blood vessels in the body. This is a scientific - theory. - fact. - hypothesis. - experiment.

fact.

Jeremy is starting to lose his hair and he's not happy about it. He has seen commercials on tv for a product called Bald Be Gone that he'd like to try, but it's very expensive. Jeremy has decided to first try an experiment with Bald Be Gone to see if it really works before investing in a year's worth of product. Every morning when Jeremy showers, after shampooing his hair he uses 1/2 cup of Bald Be Gone on 1/2 of his head. He massages 1/2 cup of water on the other 1/2 of his head and then rinses both sides of his head. After 6 weeks Jeremy measures his hair growth. The water side of his head grew 1/4" while the Bald Be Gone side of his head grew 1/2". Which is the independent/experimental variable? - Hair product - volume of product, temperature, light, amount of time - Jeremy's head - Hair growth

hair product

In Fairbanks, Alaska the sun shines for 22 hours straight during the summer solstice on June 20 each year which results in the trees adding more leaves in June than any other month of the year. - theory - fact - hypothesis - explanation

hypothesis

A virus is usually not considered a living organism because ____.

it is not made up of cells

Jeremy is starting to lose his hair and he's not happy about it. He has seen commercials on tv for a product called Bald Be Gone that he'd like to try, but it's very expensive. Jeremy has decided to first try an experiment with Bald Be Gone to see if it really works before investing in a year's worth of product. Every morning when Jeremy showers, after shampooing his hair he uses 1/2 cup of Bald Be Gone on 1/2 of his head. He massages 1/2 cup of water on the other 1/2 of his head and then rinses both sides of his head. After 6 weeks Jeremy measures his hair growth. The water side of his head grew 1/4" while the Bald Be Gone side of his head grew 1/2". Which are the controlled variables? - Hair growth - temperature, length of time, volume of product - Side of Jeremy's head with water - Hair product

temperature, length of time, volume of product