Answer:
a producer
b rabbit
c it effects the eci system
plant
squiree
snake
hawk
hawk
Answer:
B - Repeating the experiment gives the same results.
Explanation:
For more reliable results in an experiment it must be repeated multiple times to see if the data is accurate.
Hope it helps! :D
Answer:
The amount of matter in a system stays constant, it is not created nor destroyed.
Explanation:
For example, in a situation such as a chemical reaction, the atoms of the molecules never magically appear or vanish. The atoms of the reactants are simply rearranged into a product. Hope this helps.
Answer:
40-18 = 22
Explanation:
The mass number is the sum of the neutrons and protons. You know you have 18 protons and a mass number of 40.
