Answer:
Option C. A person inherits chromosomes from just one parent.
Explanation:
Genetic disorders or diseases that are caused by errors that occur during meiosis is called down syndrome. It is also known as trisomy 21. In this disease the person inherits one extra pair of chromosomes from one of the parent i. e. Father or mother.
B according to my school.
Answer:
substances can move from areas of low concentration to areas of high concentration
Explanation:
usually substances move across their concentration gradient which is from high concentration to low concentration. Active transport can allow substances to move against their concentration gradient.
Incorrectly. Because he has no idea wether the ants do it out of fear or other emotion (I dont think ants have the mental capacity to process emotion). He does'nt observe the ants are in fear he infers or guesses that they are.
Cardiac Output. Cardiac Output (CO) is the amount of blood pumped by the heart per unit of time and it depends on 2 important variables like below, Stroke Volume (SV) = the amount of blood ejected per beat of the heart (Normally, 70 ml/beat). Heart rate (HR) = heart beats per minute (normally, 70 beats/min).