I think that the answer is 40...................................
Answer:
Independent Variable: Hours of sleep
Dependent Variable: Test scores
Experimental Group: Group A
Control Group: Group B
Explanation:
Hours of sleep is the independant variable because it is the factor being tested by the teacher. This is the factor that can be controlled.
Test scores is the dependant variable because it is the factor being affected by the changes in the independent variable. This is the variable being measured.
Group A is the experimental group because this is the one that has been altered or changed from what is normal.
Group B is the control group because nothing is being changed in this group but simply measured as a basis for comparison.
Atomic mass
protons are the atomic number
protons plus neutrons are the atomic mass
(4) produce new varieties of domestic animals
Although (1) (2) and (3) are modern-day uses of selective breeding, they are relatively recent developments in human history, only used for the past century or less. (4) is correct because the selective breeding of domestic animals to produce new varieties of dogs, cats, etc. has been used for thousands of years, dating back to the ancient Chinese and Egyptian dynasties.
Answer:
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
There is one chemical process in biochemistry that has a reversible process. If you remember glycolysis, it actually has a reversible process. This reversible process is called gluconeogenesis. These two processes are reversible in response to glucose concentration in our bodies. When our bodies need energy, glucose breaks down into pyruvate through glycolysis. When our bodies need glucose for storage, pyruvate turns back into glucose through gluconeogenesis. Here are the processes:
