Most likely d because they have the most concentrated population.
The Sinoatrial node (SA) - a collection of specialized cells and is located in the holder wall of the right atrium
Answer:
Oxygen debt is a physiological phenomenon in which a person consume oxygen at fater rate that it replaced by new oxygen molecules.
As shown in the graph, oxygen debt occurs just after the end of exercise because oxygen is consumed at faster rate during exercise that leads to increased respiration and body attempts to replace the used oxygen.
To overcome the problem of oxygen debt, a person should take rest that allows the body to replenish its oxygen supply.
Hydra and Obelia are cnidarians (species of aquatic organisms) that belongs to the Class Hydrozoa.
Several ways in which Obelia differs from Hydra are;
- Hydra is a predative species that lives on substrates such as wood, while Obelia is a colonial species that lives as polyps on branched frameworks.
- Hydra is found in freshwater habitats, while Obelia is found in marine habitats.
- Hydra undergoes the medusa form in its life cycle, while Obelia undergoes the two forms (polyp and medusa) in its life cycle.
- Hydra has great regenerative powers while Obelia does not have great regenerative powers.
Answer:
Glycerol-induced hyperhydration will increase osmotic pressure in the body fluids and thus, decrease plasma volume
Explanation:
Glycerol is a metabolite that can be synthesized in the body from glucose and can also be obtained as a food additive. From a biochemistry point of view, glycerol plays a major role with regard to the deprivation of glucose both in aerobic and anaerobic conditions. Athletes use glycerol to delay fluid loss and avoid dehydration during exercise. This metabolite is known to attract water so it stays in the body longer, increasing osmotic pressure and decreasing plasma volume. Glycerol is also used to lose weight and improve exercise performance. Moreover, it is important to note that it has been shown that intravenous injection of glycerol may damage red blood cells (hemolysis).
