Hello,
If a new body of evidence were found that directly contradicted the cell theory, groups of scientists would then start formulating new theories.
Answer: x+y=21, 3x+4y=68
Explanation:
Here x represents the number of small button and y represents the number of large button,
And, According to the question,
Total number of button = 21
Thus, x + y = 21
Also, She sells the small buttons for $3 and the large buttons for $4, and earns a total of $68
That is, 3x + 4y = 68
Thus, the system of equations that can be used to calculate the number of large and small buttons sold are,
x + y = 21, 3x + 4y = 68
First Option is correct.
Seeds
Seeds of different plants may vary in many ways, but the basic anatomy remains the same.
Answer:
Inside the cells of plants, algae, and photosynthetic bacteria, chlorophyll, and enzymes use the light energy to rearrange the atoms of the reactants to form the products, molecules of glucose and oxygen gas.
Explanation:
