why do we (girls) have menstrual cycles??

Answers

Answer 1

Answer:

Girls have menstrual cycles because girls have changes of hormones in their body. The hormones make  the lining of the uterus  build up. This gets the uterus ready for an egg which when the egg is released it causes a period also known as a menstrual cycle which happens normally every month for at least 3-7 days.

Explanation:

Answer 2

Girls have menstrual cycles as a result of hormonal changes in the body.

What are Hormones?

Hormones are chemical messengers which are secreted directly into  the

blood and involved in the regulation of biochemical activities in the body.

Menstrual cycles occurs due to hormonal changes in the body of

females. Hormones line the uterus in preparation for a fertilized egg but

in cases where fertilization doesn't occur , the egg disintegrates and the

uterine lining is shed. This normally happens every month for at least 3-7

days.

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Related Questions

What is photosynthesis??​

Answers

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

I neeedddddddddddd helpppppppppp nowwwwwwwwww! Fill the blanks

Answers

Show theeeee questionnnnnnnnnn I can’t see

*EXTRA POINTS* Find the low and high target heart rate zones for a 46-year-old teacher from El Cerrito Middle School with a resting heart rate of 78bpm. Thank you!! :)

Answers

target heart rate: 87-131

i think that's right ;)

When a person complains of a food-borne illness, the health department will take
to verify the complaint.
O a written statement
O a blood sample
O a stool sample
the customer's word

Answers

I would say blood sample

Answer:

its a stool sample not a blood sample

3. This Georgian surgeon is believed to be the first person to use ether as anesthetic (but did not get credit for it).
was named for him, a statute placed in the state capitol, and a commemorative stamp was made in his honor as Georgians recognize
his contribution to medicine.
lames Oglethorpe
b. John Forsyth c. Crawford Long d. James Pickens
tartod around 400 B.C.

Answers

Answer:PABLO si

Explanation:Pablo Pablo Pablo Pablo Pablo

Without ________, fat digestion will be affected.
salivary amylase
pepsin
bile
both pepsin and bile

Answers

Answer: C. Bile

Explanation: Without bile, fat digestion will be affected.

Without bile, fat digestion will be affected.

What is the function of bile?

Bile is a digestive juice produced by the liver and stored in the gallbladder. It plays a crucial role in the digestion and absorption of fats, as it helps to emulsify large fat droplets into smaller droplets that can be more easily digested by lipases, the enzymes that break down fats.

Bile also neutralizes stomach acid and helps to create an alkaline environment in the small intestine, which is necessary for the proper function of lipases. Without bile, fats cannot be effectively broken down and absorbed, leading to impaired fat digestion.

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At a party, someone asks you you want to use MethWhen you hesitate, she says that it won't hurt you and that you can't get addicted. Is she correct? Find three facts to support you answer.

Answers

Answer:

No because illegal drugs contain high levels of addicted  and it is hard to break out of using drugs

Explanation:

A. isolation
B. socialization
C. integration
D. procreation
E. cooperation
the ___ of children by parents includes teaching morals or a sense of right and wrong
Human services plz and ty​

Answers

Answer:

B

Explanation:

socialization of your kids you can show them what to do what not to do

Where does brain cancer spreads to?
Name at least 7 as much as you can please.

Answers

Answer:

Although brain cancer rarely spreads to other organs, it can spread to other parts of your brain and central nervous system. Secondary brain tumors are cancer. They come from cancer that started somewhere else in your body and spread, or metastasized, to your brain.

Explanation:

What equipment is generally used to make lyophilized medications suitable for administering to the patient? a) Test tubes or sterile ampules b) Petri dishes and sterile droppers c) Sterile syringes or graduated cylinders d) Measuring cups and clean, warm water

An example of the training principle of change in intensity is adjusting the

Answers

Answer:

The period you hold a stretch or execute

Explanation:

i need help on this work

Answers

Answer:

4

Explanation:

Answer:  

The answer is B.) Industrial

Explanation:  

Industrial stage, is the 3rd stage of DTM. It is characterized by falling birth rates, death rates, and it also reduces the population growth.  

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Performing static stretches during a warm up instead of a cool down at the end of a workout can

cause injury
joint strength
decrease blood flow
increase endurance

Answers

Explanation:

decrease blood flow...

because it is recommended that after a strenuous workout, should walk to lower heart rate gradually,...consider jogging for a mile then just sitting down instead of recommended cool down.

heart is still actively pumping blood, HRate is still increased, etc...

I'm saying the answer is decrease blood flow...

Can a person be exposed to HIV by kissing the cheek of an infected person? A. Yes, because there may be sweat on the infected person's cheek B. Yes, because it can live outside of the body for up to 24 hours C. No, because sweat does not contain the virus D. Yes, because any physical contact can transmit the virus.

Answers

C. is the right one, because HIV is not transmitted through sweat

The correct option is C.

Can you get HIV from someone's mouth?

According to HIV.gov, oral has a low risk of transmitting HIV. While estimates of HIV transmission during oral are low, they aren't zero. There are few studies in this area, making it difficult to give a precise risk level. There's also only a risk if the person with HIV has a detectable viral load.

Can you get HIV from someone spitting in your face?

There is no risk of transmitting HIV through spitting, and the risk from biting is negligible, according to research published in HIV Medicine.

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how to cure erectile dysfunction and premature ejaculation naturally?

Answers

Answer:

Diet.

Exercise.

Sleep.

Weight loss.

Psychotherapy.

Sex therapy.

Stress reduction.

Alcohol reduction

Question 2 of 5
Which of these is a possible cause of schizophrenia?
O
A. Having a good diet and exercise regime
O
B. Genetic and environmental conditions
C. Living in a culturally diverse community
D. Surviving a traumatic event or living in a harmful environment
SUBMIT

Answers

D. Surviving a traumatic event or living in a harmful envrionment

Which of the following is NOT a function of the skeletal system?
A. protecting vital organs
B. allowing movement
C. storing minerals
D. producing blood cells

Answers

Answer:

D. producing blood cells

Explanation:

approximately how many calories are in a banana that has 20 grams of carbohydrate?

Answers

It probably has 72-135 calories

There are 18 calories in 20 grams of banana. It provides us with energy.

What are calories?

Calories are the units of energy used by your body during food digestion and absorption. A food might provide your body extra energy if it has more calories. We need energy for our daily activities.

Your body stores extra calories as body fat when you consume more calories than you need. Even f6ods without fat might have a lot of calories.

A medium banana has roughly 105 calories, 3 grams of fiber, and the fruit's natural sugar (A quick rule of thumb is that one serving of carbohydrates should provide at least 3 grams of fiber). As you surely already know, bananas also contain a lot of vitamins, including potassium. Hence, there are 18 calories in 20 grams of banana.

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major depressive disorder vs persistent depressive disorder

Answers

Answer:

Persistent depressive disorder (PDD) and major depressive disorder (MDD) are two forms of depression. Both conditions can affect a person’s daily life.

PDD, formerly called dysthymic disorder, affects 1.5%Trusted Source of adults in the United States. Females are more likelyTrusted Source to have PDD than males.

MDD is one of the most common mental health disorders in the U.S., affecting 7.1%Trusted Source of adults in the country. It is also more likelyTrusted Source to develop in females than males.

A key difference involves the duration of symptoms. For a doctor to diagnose PDD in an adult, symptoms must have lasted for at least 2 yearsTrusted Source. Adults with MDD, meanwhile, experience what are called major depressive episodes that are separated by at least 2 monthsTrusted Source.

Below, learn more about the differences between major and persistent depressive disorders. We describe their symptoms, causes, treatment, and more.

Boys and girls experience different changes to their bodies during adolescence.


Please select the best answer from the choices provided.

T
F

Answers

Answer: T

Explanation: one example of this is girls develop breasts while boys do not.

A recipe for one batch of bagels uses 134 cups of flour. Brandon has 318 cups of flour. Does he have enough flour to make 2 batches of bagels?

Answers

No, Brandon does not have enough flour to make 2 batches of bagels

Please i need help. I dont have much time left

What activities must a designer plan for when designing a living room?

A. Socializing

B. Entertaining

C. Storage

D. All of the choices are correct.​

Answers

Answer:

D

Explanation:

Is misremembering and false memories similar?

Answers

Misremembering and false memories similar may some worth sound alike or similar but in the actual or technical sense they are not similar.

Misremembering occurs when we truly can recall event but the accuracy with which we remembered is not valid

False memory is defined as the recollection of an event that did not happen or a distortion of an event that indeed occurred.

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2. From which food group should you choose 6oz. per day? Protein Group, Milk Group, Vegetable Group, Grains Group​

Answers

Answer:

All foods made from seafood; meat, poultry, and eggs; beans, peas, and lentils; and nuts, seeds, and soy products are part of the Protein Foods Group.

Explanation:

What are the 4 types of teeth we have in our mouths?

Answers

Incisors: Incisors are the sharp teeth at the front of the mouth that bite into food and cut it into smaller pieces. They are flat with a thin edge. They are also called anterior teeth.

Both children and adults have eight incisors — four central incisors at the front of the mouth, two on each row, with one lateral incisor positioned on either side of them.

Canines: Canines are the sharp, pointed teeth that sit next to the incisors and look like fangs. Dentists also call them cuspids or eyeteeth. Canines are the longest of all the teeth, and people use them to tear food.

Both children and adults have four canines. Children usually get their first permanent canines between the ages of 9 and 12. The lower canines tend to come through slightly before those in the upper jaw.

Premolars: Premolars, or bicuspids, are bigger than the incisors and canines. They have many ridges and help chew and grind up food. Adults have eight premolars. The first and second premolars are the molars that sit next to the canines.

Young children do not have premolar teeth. These first appear as permanent teeth when children are 10–12 years old.

Molars: Molars are the biggest of all the teeth. They have a large, flat surface with ridges that allow them to chew food and grind it up. Adults have 12 permanent molars — six on the bottom and top jaw, and children have eight primary molars.

The last molars to erupt are wisdom teeth, or third molars, which usually come through between the ages of 17–21. These sit at the end of the row of teeth, in the far corners of the jaw. Some people do not have all four wisdom teeth, or the teeth may stay unerupted in the bone and never appear in the mouth.

Sometimes wisdom teeth can become impacted, which means they can become trapped under the gum and are unable to come through properly.

Wisdom teeth that only come through halfway or are in the wrong position can increase the risk for infection or damage in surrounding areas. It is essential to see a dentist if people have any issues with their wisdom teeth.

People may experience mild discomfort when their wisdom teeth start pushing through the gums, but anyone feeling a lot of pain or has swelling should see a dentist.

A dentist may need to remove wisdom teeth if a person has tooth decay, pain, or an infection. People do not need these teeth for chewing, and they are difficult to keep clean because of their position far back in the mouth.

the external urethral sphincter is under ___________ control.

Answers

Answer:

It is controlled by the deep perineal branch of the pudendal nerve.

Explanation:

.

The external urethral sphincter is basically under the voluntary control.

What is voluntary control?

Only one of the body's 3 chief muscle systems is subject to voluntary control, which means we may consciously decide the amount in which much influence it has.

The external urethral sphincter can be controlled voluntarily. The urethra is surrounded by skeletal muscle, which can be intentionally contracted to stop the passage of urine from the bladder.

One can delay urination when necessary and regulate the timing and flow of urine thanks to this voluntary control of the external urethral sphincter.

The internal urethral sphincter, a smooth muscle at the base of the bladder, is under involuntary control as well as contracts instinctively to stop urine from flowing back into the bladder during urination.

Thus, the answer is voluntary control.

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where do Tubal Ligation located

Answers

Answer: In the fallopian tubes

Explanation: It is a surgury that sterilises women by cutting their fallopian tubes

how can sanitation programmers make a community civilized​

Answers

Community-led total sanitation (CLTS) is an approach used mainly in developing countries to improve sanitation and hygiene practices in a community. It focuses on spontaneous and long-lasting behavior change of an entire community. The goal of CLTS is to end open defecation. The term "triggering" is central to the CLTS process. It refers to ways of igniting community interest in ending open defecation, usually by building simple toilets, such as pit latrines. CLTS involves actions leading to increased self-respect and pride in one's community. It also involves shame and disgust about one's own open defecation behaviors.

please give a answer​

Answers

Answer:

Number 2. about crimes or new info

Number 3 because the Langth of the heathy basses of human and animal bodies indoor high elictric cells

How do you say goodbye to someone that you love?

Answers

Love you ill see you later

Answer:

tell them that you have to go and that you hope to see them soon or just say that you might not see them again it might break their heart and break theirs but its best.

help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

industrial Stage.

Explanation:

hope this helps, and tysm for the 50 points! wow! lower it so you don't lose a lot of points!!

Answer:

The answer is B.) Industrial

Explanation:

Industrial stage, is the 3rd stage of DTM. It is characterized by falling birth rates, death rates, and it also reduces the population growth.

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