A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
Answer:
Insulin helps control blood glucose levels by signaling the liver and muscle and fat cells to take in glucose from the blood. Insulin therefore helps cells to take in glucose to be used for energy. If the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
Explanation:
Answer:
no this is operant conditioning
Explanation:
operant conditioning is a learning style which was first studied by Skinner and it is based on positive or negative reinforcement to induce learning. In this example we can see operant conditioning with negative reinforcement. Herbie learned after a punishment he got to his action
Gender refers to the socially constructed differences between women and men, while the term ‘‘sex’’ is a reference to the biological and physical differences between males and females. Gender draws attention to the socially unequal distinction between femininity and masculinity. Femininity is used to describe characteristic behaviors and emotions of females and masculinity refers to the distinctive actions and feelings of the male sex. In studies of gender and sports, the concept of gender is analytically distinguished from that of sex even though the two are often used synonymously in everyday language and thought. Not all the differences between females and males are biological. But historically, ideas about the implications of biological differences between women and men have served to justify the exclusion or limited inclusion of women in sports. Such views reflect an ideology of biological determinism, where it is claimed that men, and not women, are inherently strong, aggressive, and competitive and, therefore, better suited to sports.
Answer:a
Explanation: because blood is pumped out of the heart and into the body to supply oxygen to working muscles or to the lungs for re-oxygenation
