Glands are classified as ENDOCRINE or EXOCRINE depending on their route of secretion. ENDOCRINE GLANDS secrete their products, called hormones, directly into the blood. ... Their products are NOT released into the blood. Exocrine glands are classified on the basis of the number of cells making up the glands.
B is correct since trees absorb CO2.
Answer:
1 and C
Explanation:
myelin creates capsules making the speed at which impulses travel faster, compared to non-myelinized fibres
C because sense of smell is located in the brain, cerebrum
Answer:
It cannot be digested and, therefore, provides little nutritional value
Cells need energy to function. They obtain this energy from the energy storing molecule ATP. Think back to what you have already learned about ATP. It is formed by combining the nucleoside adenosine with three high energy phosphate groups. In order for ATP to be produced, oxygen must be available. Without oxygen, the addition of the third phosphate group does not occur, and ATP is consequently not produced. Without ATP, the body’s cells do not have a source of energy and will die once a cell’s ATP reserves are used up.
The body’s source of oxygen is the air in the atmosphere. Getting oxygen from the air to each cell in the body requires a complex and coordinated effort from the respiratory and cardiovascular systems. Every minute these systems work together to take in oxygen the body needs and get rid of the waste gases produced.
In this activity, you will meet a young girl who is struggling to breathe. As you work to diagnose her, you will investigate the structure of the respiratory system and consider what happens in the body when low levels of oxygen cause a person to gasp for even a simple breath.
Equipment