Saliva contains Salivary Amylase, which helps in breakdown of sugar.
So, correct choice is (a) Amylase.
Farming meant that people did not need to travel to find food.( nomadic lifestyles became scarce) Instead, they began to live in settled communities,or villages and grew crops or raised animals on nearby land. They built stronger, more permanent homes and surrounded their settlements with walls to protect themselves.
Answer:
A. Renin levels increase with poor kidney perfusion
D. Nephrotoxic drugs are a cause of intrarenal failure.
Explanation:
Renin is produced in the kidney for angiotensin aldosterone hormonal system and it is helpful in maintaining the blood pressure and other metabolic activities. However when the renin level is high then it means the kidney has a perfusion issue .
Nephrons are kidney cells. When a drug which is toxic to them gets into the body system then it affects the kidney and may cause kidney failure.
Answer:
D
Explanation:
A food web explains why there are more producers than consumers. It is because more energy is available to producers.
The food web is a structural representation of the feeding relationship that exists among the living organisms in a particular environment.
A typical food web groups living organisms as producers, consumers, or decomposers. Producers are those that fix sunlight energy into chemical energy, a process known as photosynthesis while consumers are those that either feed on producers or other living organisms in the environment. The decomposers return both producers and consumers back to the earth and help nutrients circulate in the environment.
<em>In a typical food web, producers are usually more than consumers because more energy is usually available at this level. Less and less energy becomes available as we move up the ladder in each food chain that makes up the food web.</em>
The correct option is D.
Answer:
WHat is the CURRENT step?
Explanation:
