Answer:
The constants: 14 hours of light per day; food one time per day 5 oz; wheel for exercise; cage size
The independent variable: the temperature
The dependent variables: length and weight
Data to be collected: weight of mice; length of mice
A flaw in the experiment: the sample size is to small to be random; it doesn't specify a control group
Explanation:
The constants are the controlled variables. The scientist controls these items because a variable that remains unchanged prevents it from having any effect on the outcome.
The independent variable is the condition manipulated by the scientist to see its effects.
The dependent variables are the ones being measured or tested for in an experiment.
Randomization means every subject gets an equal chance at being in the control group. There are to few subjects. A control group would consist of elements that present exactly the same characteristics of the experimental group, except for the variable applied to the latter.
Answer:
b. A Wood's light examination
Explanation:
A wood lamp examination is a test that uses ultraviolet light to examined a skin infected with bacteria or fungal infection.
Answer:
Magma heats nearby rocks and underground aquifers. Hot water can be released through geysers, hot springs, steam vents, underwater hydrothermal vents, and mud pots. These are all sources of geothermal energy. Their heat can be captured and used directly for heat, or their steam can be used to generate electricity.
Explanation:
See if that helps
1. Some hunt alone, since it is easier to surprise their prey, and some prey in pacts,to kill their prey faster.
2. They scratch their foreclaws on treetrunks to sharpen their foreclaws and mark their territory.
3. They are isolated so they do not socialize with other tigers, unless they are hungry.
Hope I helped.
