Answer:
C) substitutions that reduce the affinity of hemoglobin for oxygen
Explanation:
Heinz bodies are inclusions in the eritrocite, filled by denaturalized globin (protein part of the hemoglobin). Hemoglobin is formed by 4 globin subunits (2 alpha chains and 2 beta chains) plus a heme group. The latter, is responsible for oxygen binding.
The denaturalization of the globin is caused by substitutions that do not allow the protein to fold properly and bind the heme group accordingly. This is the cause of the Heinz bodies in the eritrocite. Therefore, this is a structural problem that impedes the protein to fold into a functional protein and has nothing to do with hemoglobin having less affinity for oxygen. In the last mentioned case, the protein is still functional but poorly binds oxygen, hence, does not for Heinz bodies.
Answer:
The statement is true.
Explanation:
The results of the investigations carried out in relation to the link between cortisol secretion and personality reveal differences in the reported evidence. Some of this research indicates that personality traits or disorders play a relevant role in individual differences in the endocrine response to cortisol, both in its basal levels and in the face of stressful stimuli.The relationship between antisocial personality and cortisol levels has been described in several investigations. Among the most reported neuroendocrinological abnormalities in antisocial men is a decrease in cortisol secretion levels. In this regard, Moss, Vanyukov and Martin conducted a case control study comparing cortisol secretion in stressful situations in children between 10 and 12 years of age at risk of presenting aggressive and abusive behavior in adolescence based on their family history. The groups were formed in relation to the presence or absence of a family history of aggression and substance abuse, specifically in the parents. The results found showed that children had a higher risk of antisocial behavior, if their parents had a history of substance abuse and violent behavior, they had lower levels of cortisol secretion in stressful situations than children in the control group whose parents did not present these behaviors negative. The researchers argue that these results could be indicating that a lower increase in cortisol levels in the face of stressful situations could be a biological marker of future antisocial adolescents. Likewise, a longitudinal study with 38 school-age children who had symptoms of aggressive behavior (clinically reported), who were assessed for the circadian rhythm of cortisol in saliva during the second and fourth years of schooling; reported the relationship between the decrease in HPA axis activity and the presence of severe and persistent aggressive behaviors.
Answer:
Pectoralis minor
Explanation:
Pecoralis minor is a thin, triangular muscle lies beneath the pectoralis major muscle. This muscle arises from the third ribs, fourth and fifth ribs.
The pectoralis muscles fans out from the shoulder upper ribs area. This muscle is involved in the coracoid process of scapula. The pectoralis muscle helps in the depression point of the shoulder.
Thus, the correct answer is option (D).
Answer: If this is to measure the change in heart rate, I’ve chosen laying down vs standing
Explanation:
