Answer:
D. HCG! (Human Chorionic Gonadotropin)
It's often called the pregnancy hormone because it is made by cells formed in the placenta, which nourishes the egg after it has been fertilized and becomes attached to the uterine wall.
Answer:
Which two mechanisms influence the force of cardiac contraction?
Answer: End diastolic volume and sympathetic nervous system stimulation
Explanation:
Blood pressure decreases during diastole, which occurs when the heart muscle relaxes. While, blood pressure increases during systole, which occurs when the ventricles contract, pushing blood out of the right ventricle.
The cardiovascular system connects a pump to blood vessels.
Cardiac contraction is the end result of action potentials and it can be defined as a unique ability of cardiac muscle to generate a force that is independent of any load or stretch applied.
End-diastolic volume is the amount of blood in the ventricles just before systole. A person’s end-diastolic volume tends to decrease with age.
End-systolic volume is used in the hospital to determine a measurement known as stroke volume, which is the amount of blood pumped from the left ventricle with each heartbeat.
Sympathetic stimulation causes the release of the neurotransmitter norepinephrine and it increases heart rate and myocardial contractility.
The sympathetic nervous system has a wide variety of cardiovascular effects, among which are, increased cardiac contractility, peripheral vasoconstriction.
Sympathetic nervous system stimulation causes vasoconstriction of most blood vessels.
The correct option is Estimated Average Requirement.
The estimated average requirement (EAR) is the number of nutrients that, according to estimates, will satisfy the needs of 50% of people in a given life stage and gender group. For both men and women, balance tests and data on stable isotopes point to an EAR of 5 mg kg per day. It is believed that this threshold, which is higher during teenage growth, is 5.3 mg kg1 day1. A supplement of 35 mg per day is advised since the Mg demand increases during pregnancy due to Mg transfer to the fetus in the final three months. The adequate intake (AI) for newborns is calculated based on the Mg content of breast milk and the progression of solid food ingestion.
Learn more about adequate intake here:-
brainly.com/question/1482510
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Answer:
Preparation
Explanation:
Preparation -
It refers to the proper arrangement regarding some specific activity before hand , is referred to as the process of preparation .
The process of preparation involves the step of in rehearsing before hand , collecting the required goods etc.
A proper preparation is very crucial to showcase the activity or project on the grand day .
Hence , from the given scenario of the question ,
The correct answer is perapartion .