Answer:
Where is the graph
Explanation:
Sorry for asking ,but there is no graph
Answer: No se
Explanation: because I know.
Answer:
FALSE
Explanation:
Papillary muscles are found in the bottom chambers of the heart and attaches to the tricuspid and bicuspid valve through tendons to facilitate blood flow during systole. It also prevent prolapse. These muscles contract before the contraction of ventricular muscles (or before the contraction of ventricles) by pulling chordae tendinae till the ventricles are relaxed. This helps in preparing the valves for high ventricular pressure
Hence, the given statement is false
Answer: Species stay the same for a long time and then
change quickly due to environmental changes.
A punctuated equilibrium theory
states that
individual species tend to stay the same or no change over a long period of
time and then enter a period of rapid change due to environmental changes,
which gives rise to new species. Moreover, it generally applies to sexually
reproducing organisms but other biologists have applied the model to non-sexual
species like virus.
Cytokines are thought to raise the thermoregulatory set point to cause fever by stimulating the synthesis of the chemical mediator called the prostaglandin. These are secreted by specific cells found in the immune system. These are molecules involved in cell signaling that helps cells to communicate during immune responses and stimulate the cells to inflammation sites or infection and trauma sites. It stimulates synthesis of prostaglandin and then turnover in the thermoregulatory and nonthermoreglatory tissue. These molecules can exist into three forms which are peptide, glycoprotein and protein forms. These substances are classified in many ways because there is no present unified classification system.