Answer:
B. They sweat or pant to lose heat by water evaporation.
Explanation:
Answer:
Placenta
Explanation:
Any amount of alcohol can harm a developing fetus and increase the risk of miscarriage. Alcohol easily passes through the placenta, the organ that nourishes a baby during pregnancy
Not all inspired air reaches the alveoli; 150 ml is stopped in the airway leading to the alveoli. This is called dead air space.
Alveoli are the tiny air sacs present all over the lungs. These are supposed to increase the surface area of the lungs so as to increase the amount of inhaled air. The exchange of oxygen and carbon dioxide takes place through these alveoli.
Dead air space is the unventilated area where air circulation does not take place. This air is supposed to be get trapped somewhere in the respiratory pathway or it reaches an alveoli that is poorly perfused. The dead air space can be of two types: anatomical dead space and physiologic dead space.
To know more about dead air space, here
brainly.com/question/14505996
#SPJ4
Primary= peptide bonds
secondary= hydrogen bond
tertiary= weak bonds, hydrophobic, disulfide bridges, salt bridges
quaternary= between polypeptides
Before a cell divides DNA replicates itself. hope this helps!
