Contrals movement of substances and in and out of cells
The answer is A, it's made out of buried plants and animals
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:
<h2>A</h2><h2>C</h2><h2>D</h2><h2>F</h2>
<h3 /><h3>Hope it helps you </h3>
Answer:
A snap together model makes sense to use because to form compounds, atoms bond to each other. A plastic snap together toy demonstrates the bonds with the snaps, but can be disconnected and rearranged to model the formation of different compounds through chemical reactions.
Explanation:
Hope this helps :)