Answer:
D. elimination of digestible wastes.
Explanation:
Digestion is the breakdown of large food components into smaller size in the body.
The digestive system functions includes the chemical breakdown of food, mechanical breakdown of food, absorption of food molecules and elimination of waste products.
The digestive tract can be compare to a tube with two openings - mouth and anus. The process of digestion starts from the mouth ( ingestion of food) through the oesophagus down to the stomach (where the food is mixed with digestive juices) then to the small intestine (this is where most of the digestion process takes place) then to the large intestine and finally to the anus where undigested wastes are eliminated
Answer:
The walls of the arteries are very thick. They are made up of thick elastic fibres and smooth muscles.
Arteries can be described as blood vessels which function to transport blood from the heart to other parts of the body. The blood that the heart pumps is high in pressure. Hence, the thick walls of the arteries are adapted to carry blood that has high pressure.
The other blood vessels do not have as thick vessels as the arteries.
Answer:
Chemistry go side by side with biology in living organisms.
Explanation:
Biology is the study of life and contain all living organisms. In the basic, all living organisms are composed of chemical compounds and elements. So if we want to study biology basics you have to study the chemistry.
Example; If I want to study carbohydrates i have to know about monosaccharides which comprises of carbon, hydrogen and oxygen. So, i should know the chemical properties of carbon, hydrogen and oxygen. I should also have knowledge about how glycosidic bond is formed between monosacharides.
Appart from these various chemical reactions occur in living organisms.
It is b they keep the excess energy in the chloropplast
Answer:
performing a controled experiment
Explanation:
this is because they can experience it themselcves, without having risk of external disturbance that would change tha outcome
