Pepsin (D.)
Pepsin is an enzyme that break down protein to make smaller peptide, in other words, they break up polypeptidae into peptide.
Hope it helped,
BioTeacher101
<u>Answer:</u>
The Answer is <em><u>Option D. </u></em>
<em>Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.</em>
<em />
These components include;
Cardiorespiratory Endurance: Ability of the circulatory and respiratory systems to supply oxygen during sustained physical activity.
Guidelines
3 - 5 days per week
20-60 minutes a day
intensity of 60%-90% of MHR
Muscular strength; the ability to perform activities that require high levels of muscular force.
2 -3 days per week
2-6 sets
≤ 6 repetitions
Intensity of 80 - 90 % of 1RM
Muscular endurance;
2 - 3 days per week
2 - 3 sets
≥ 12 repetitions
Intensity of 60% - 70% of 1RM
Flexibility
2- 3 days a week
≥ 4 repetitions per muscle group
15 - 60 seconds
Body composition Women men
Essential fat 10-13% 2-5 %
Athletes 14-20% 6-13 %
Fitness 21-24% 14-17 %
Average 25-31% 18-24%
Obese ≥ 32% ≥ 25%
A) Genetic Engineering; this is the logical and « real » choice.
Salinity refers to the principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater. It is the measure of all the salts dissolved in water.
