Answer: Definition
Explanation: In science, the word 'theory' refers to the way in which people interpret facts. A scientific theory is the framework for observations and facts. Theories may change, the way in which they are interpreted may change, but the facts remain the same.
The correct answer is 2.
Type 2 diabetes is a lifelong condition which involves high levels of glucose in the blood and is caused by irregularities in insulin. There are specific factors which can increase the risk of developing type 2 diabetes and these are excessive weight and fat tissue, old age, family history of type 2 diabetes, race, reduced physical activity, high blood pressure and others.
Mr. Joiner's age and race could be considered risk factors since the older you are the more increased is the risk. Also, African American people are found to be at higher risk for type 2 diabetes. However, these are risk factors which he cannot control.
The risk factors that Mr.Joiner can control are his reduced physical activity due to his sedentary life and his weight (since his BMI indicates that he is overweight). Most probably he should also try to have more healthy eating habits, by cooking healthy meals at home instead of dining out so often.
Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
Answer:
Sedimentary rocks are classified based on how they form and on the size of the sediments, if they are clastic. Clastic sedimentary rocks are formed from rock fragments, or clasts; chemical sedimentary rocks precipitate from fluids; and biochemical sedimentary rocks form as precipitation from living organisms.
Explanation:
