<span>A) Phosphate groups, ribose sugar, adenine base</span>
Answer:
All objects that have balanced forces acting on them must be stationary is an example of Newton's first law of motion.
Explanation:
- Newton's First law of motion is the Law of inertia, that states a body continues to be in state opf rest or state of motion untill an unbalanced force acts on it.
- So if a body has all balanced forces acting on it then it will continue to remain in state of rest i.e. it will be stationary.
- The first example describes Newton's third law, that every action has equal and opposite reaction.
- The second and third example supports Newton's Second Law, the law of momentum which states that the rate of change oif momentum is directly proportional to the force applied on the body and the mass of the body.
Neurotransmitters are chemicals released at axon terminals to a target cell to continue to action potential
If pregnancy among women does not occur, then menstruation occurs. The menstrual cycle usually lasts about 28 days.
<h3>What do women experience during their menstrual period? </h3>
During menstruation, women may experience abdominal cramps, headaches, backache, and nausea.
The stage in which a woman is most fertile is called Ovulation. During this step, an egg is released from the follicle in the ovaries.
If a fertilized egg successfully embeds itself in the uterine lining, then the woman becomes pregnant.
If the fertilized egg does not manage to embed in the uterine lining, then menstruation will occur.
The two main hormones that control the menstrual cycle are estrogen and progesterone. If the egg is not fertilized, then progesterone levels drop.
The estrogen needs to stop FSH to be produced to make sure only one egg matures in the cycle.
Learn more about the menstrual cycle here:
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