what is menstruation and why does it occurs​

Answers

Answer 1

Answer:

A period happens because of changes in hormones in the frame. Hormones are chemical messengers. The ovaries launch the lady hormones estrogen and progesterone . those hormones motive the liner of the uterus (or womb) to build up. The constructed-up lining is prepared for a fertilized egg to connect to and begin developing. If there is no fertilized egg, the liner breaks down and bleeds. Then the identical manner occurs all once more.

 

It normally takes about a month for the liner to build up, then smash down. this is why a lot of ladies and women get their periods round once a month.

Source:

https://kidshealth.org/en/teens/menstruation.html

https://www.plannedparenthood.org/learn/health-and-wellness/menstruation

thectgod ig follow

Answer 2
The answer above me is correct

Related Questions

A man is brachydactylous (very short fingers; rare autosomal dominant), and his wife is not. Both can taste the chemical phenylthiocarbamide (autosomal dominant; common allele), but their mothers could not. Give the genotypes of the couple. If the genes assort independently and the couple has four children, what is the probability of all of them being brachydactylous

Answers

Answer:

The correct answer is -

A) BbTt x bbTt

B) .5^4 or 1/16 or 0.0625

Explanation:

As it is given that Brachydactylus and PTC tasters both traits are autosomal dominant conditions which mean only one allele would be enough.

For Branchydactylus and For tasting :  man and women will be heterogeneous.

Hence,

The Genotype of man = BbTt

The Genotype of wife = bbTt

b. Answer = 0.0625

For Branchydactylus:

Bb X bb

Possible genotypes:

B b

b Bb( Brachydactylus) bb(normal)

b Bb (Brachydactylus) bb (normal)

The probability of a single child being Branchydactylus = 2/4 = 0.5

So,  Probability of all 4 child being Branchydactylus = .5 x .5 x .5 x .5 = 0.0625

Which of the following is an example of a natural selection?
1 point
All grey squirrels have not changed for a 1,000 years
Birds developed wings because they wanted to fly.
Fish developed gills because they wanted to move to land.
A new species of purple squirrels forms due to a change in the ecosystem.

Answers

Answer:

A new species of purple squirrels forms due to change in the ecosystem

Explanation:

Key part: Change in the ecosystem

What is a similarity between the temperate climate zone and polar climate zone?

A. Both climate zones get less than 100 cm of precipitation in a year.
B. Both climate zones have average yearly temperature of around 25°C.
C. The polar and temperate climate zones have hot and dry summers.
D. They have hot summers and cold winters because they are close to the ocean.

Answers

Answer:

may be option c or b I think but I am not sure

What is species definition

Answers

Answer:

a race of animal

Example:

a wolf and a dog are the same species

Answer:

a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial

A type of animal.

In your own words, what is the definition for the word karyotype?

Answers

Answer:

Karyotype is defined as the general appearance of chromosomes. An example of karyotype is the size, number and shape of chromosomes in a person's body. noun. The characterization of the chromosomal complement of an individual or a species, including number, form, and size of the chromosomes. noun.

que es la iniciación de un cultivo

Answers

Answer:

cuando un cultivo inicia y se empieza a arar la tierra

Explanation:

In the analogy of a cell as a school,
lysosomes could be thought of as...
A. a janitor.
B. a teacher.
C. a music teacher.

Answers

Explanation:

In the analogy of a cell as a school, lysosomes could be thought of as a teacher.

Because teacher helps students by solving complex problems in simple way and as teacher lysosomes also helps us by breaking down the complex thing in the cell.

Hey there!

I believe your answer would be the janitor because his/her job is very similiar to the lysosomes' job, to get rid of all extra waste.

Hope this helps!

Have a great day!

What is the role of the fungus in the food web shown?
boa constrictor
beetle
- coati
poison dart frog
sloth
strangler fig
fungus fruit bat
A. To recycle molecular building blocks
a
B. To break down photons
C. To gather green light
O D. To convert light energy into chemical energy

Answers

Answer:

OptionA    because decomposers are associated

Explanation:

The role of the fungus in the food web shown is to recycle molecular building blocks. The correct option is A.

What is food web?

A food web is a diagram that depicts the interconnection of various organisms in an ecosystem via the exchange of energy and nutrients.

The food web is made up of several interconnected food chains that represent the flow of energy from one organism to the next.

Fungi are decomposers that play an important role in breaking down organic matter and recycling nutrients in many ecosystems.

The fungus in the food web is most likely breaking down dead plant or animal matter, releasing nutrients like carbon, nitrogen, and phosphorus back into the soil.

These nutrients are then absorbed by plants, which are then consumed by herbivores such as the coati and sloth.

Thus, the correct option is A.

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Skin cells are lost daily even without injury. The cell cycle responds by promoting
a. reproduction.
b. repair.
c. synthesis.
d. growth.

Answers

Answer:

The correct answer is A

Hope it helps! Please mark me Brainliest!

The cell cycle responds to the daily loss of skin cells skin promoting reproduction. Details about reproduction can be found below.

What is reproduction?

Reproduction in biology refers to the process of making copies or duplicate of a cell.

According to this question, skin cells are lost on a daily basis even without injury.

However, the cell cycle through the process of mitosis responds to this loss by making more copies of skin cell in a process of reproduction.

Learn more about reproduction at: https://brainly.com/question/7464705

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what is force? pls answer my question ​

Answers

Answer:

Strength or strength, which is an ability of the human physical condition that is needed in increasing the achievement of learning motion. ... Harsono (1988: 47) defines strength as energy to fight a resistance or the ability to generate tension

Explanation:

sorry if wrong (◠‿◕)

Which of the following terms is a comparison between the number of copies
of a particular allele and the number of copies of that gene?
A. Allele dominance
B. Allele frequency
C. Allele density
O D. Allele strength
SUBMIT

Answers

Answer:

A: Allele Dominance

Explanation:


Write the changes occurring in the passage through the alimentary canal as a person has ingested roti and dal as a part of his meal

Answers

Answer:

A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal. Answer: ... The saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.

Explanation:

Soil moisture influences both hydrological and agricultural processes and is part of the water and energy cycles through ________.

transpiration
evapotranspiration
evaporation
condensation

Answers

Answer:

Its either evapotranspiration or condensation

Explanation:

Hope it helps✌✌

Answer:

The correct answer is evapotranspiration.

Explanation:

Evapotranspiration is the process of water moving from Earth's surface to the atmosphere. The way water moves from the soil to atmosphere is through this process.

ASAP What occurs after the homologous pairs are separated?
A. The sister chromatids separate.
B. Spindle fibers attach to the chromosomes.
C. Haploid cells are formed.
D. The nuclear envelope reforms.

Answers

Answer:

A

Explanation:

the sister chromatids separate

After the separation of homologous pairs, the sister chromatids are subsequently separated during meiosis II.

What is Homologous pair?

Homologous pairs may be defined as those chromosomes which are very identical to one another and have the same size and shape.

In meiosis I, the separation of homologous pairs occurred. After this process, the sister chromatids are separated in meiosis II.

This separation leads to the production of a total of four products having the half number the chromosomes as compared to the original cell.

Therefore, the correct option for this question is A.

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It is believed that the ratio of cyclic electron transport to Z-scheme photosynthesis changes in response to metabolic demands. If a plant were actively engaged in a large amount of reductive biosynthesis, requiring NADPH, how would it alter these processes compared to a plant just performing the Calvin cycle to produce glucose

Answers

Answer:

The correct answer is (b) More Z-scheme photosynthesis, less cyclic photophosphorylation

Explanation:

Z-scheme is the schematic flow of the electrons from water to NADP+ and as it connects the two different photosystems that look like z in the diagram it is termed as Z-scheme of photosynthesis. The ratio of cyclic electron transport to Z-scheme photosynthesis alters as per the metabolic requirements. In the question, it is given that If a plant were actively engaged in a large amount of reductive biosynthesis, requiring NADPH, then it will acqiuire more z-scheme photosynthesis compared to a plant just performing the Calvin cycle to produce glucose.

Answer:  More Z-scheme photosynthesis, less cyclic photophosphorylation

A cell is round and cannot produce its own food. Which organelle does this cell have?(1 point)

A:central vacuole

B:cell wall

C:plasma membrane

D:chloroplast

Answers

Answer:

may be c is thw correct answer

You are overseeing a paleontological expedition at the Grand Canyon to uncover fossils. You have one group working about 10 feet above the bottom of the canyon,
uncovering a cluster of Brachiopods You have a second group working about 300 feet above the bottom of the canyon, uncovering impressions from a variety of plants
such as fems and horsetails. While you are waiting for the exact age of the rock layers to be determined, what can you tell about the age of the fossils based on
where they are
A. You cannot determine anything yet.
B. They are all about the same age.
C. The plants must be older than the Brachiopods.
D. The Brachiopods must be older than the plante

Answers

Answer:

C

Explanation:

because the plants are farther down lol

Paleontology establishes the geological age of the organisms. Based on the height of the fossils discovered at the Grand Canyon, it can be concluded that plants were older than the Brachiopods. Thus, option C is correct.

What are fossils?

The dead remains and decaying materials of the plants and animals stored and preserved under the sediments and rock layers over a period of many years are said to be called fossils.

The fossils are evidence of the evolution as well are used to determine the geological age of the species based on their occurrence of them in the rock layers.

The fossils of plants like horsetails and ferns were found 300 ft above the Canyon while Brachiopods at 10 feet above Canyons that tell that plants were found earlier than the former species.

Therefore, option C. the plants existed prior to the Brachiopods.

Learn more about fossils here:

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the personality of an individual involves his or her​

Answers

Answer:

both

Explanation:

depends on the person's personality I guess or how they act n all

The graph shows the supply and consumption of forests when the
consumption rate and population growth rate are both low.
When does consumption begin to surpass supply?

Answers

Answer:

In about 625years

Explanation:

According to the graphical representation depicted in this question, it shows the supply and consumption of forests when the consumption rate and population growth rate are both low. The green line represents the total consumption while the red line represents the total supply.

Based on observation of the graph, the total consumption exceeds or surpasses the total supply at a little above 600 years. Approximately, this can be said to be in about 625years.

Answer:

In about 625 years

Explanation:

Consumption has definitely surpassed supply by 700 years, but it only begins to surpass it around the 625 year mark according to the graph

what is homostatis in biology​

Answers

Answer:

the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

It means “same”, and “steady”, and it refers to any process of organisms that live under actively maintain fairly stable conditions necessary for survival.

Paula has studied the effect of ultraviolet light on seed germination.
Data were collected on seeds that were exposed to UV radiation and
then allowed to germinate. Which statement is true concerning this
data? *
O UV rays help seeds germinate.
O Temperature is insignificant.
There is no control group.
UV light is toxic to seeds.

Answers

Answer:

i dont know

Explanation:

Please help me to fill in the blanks. Thanks!

Sediments minerals rock remains sedimentary millions

When animals and plants die, their bodies fall into __________. Some of these decays while some become part of ______________ rocks. Rock layers build up and the rock becomes a solid. The ______________ in the rock replace the ________________ in parts of dead bodies. This takes place over _______________ of years. The_______________ of living organisms that have changed to ________________ are fossils.

Answers

When animals and plants die, their bodies fall into sediments. Some of these decays while some become part of fossilized rocks. Rock layers build up and the rock becomes a solid. The minerals in the rock replace the soft parts in parts of dead bodies. This takes place over millions of years. The remains of living organisms that have changed to stone are fossils.

When the flow of water cuts very deep channels through the earth *
2 points

Answers

Answer:

It  carves deep into the rock and soil it flows over. Mountains streams cut narrow V-shaped channels

Explanation:

How far is the moon from the sun?

Answers

Answer:

150 million kilometers

Explanation:

The Moon is approximately 150 million kilometers from the Sun on average. Because the Earth orbits the Sun at a distance of roughly 150 million kilometers, this is a fascinating coincidence. Because the Moon orbits the Earth, it follows the Earth's orbit around the Sun.

OAmalOHopeO

3 adaptive features of amoeba​

Answers

Answer:

3

Explanation:

because yes

Answer:

They reproduce using binary fission

It contract their vacuoles

Amoeba breathe through the body surface

define cerebral action​

Answers

1 of or relating to the cerebrum or to the entire brain. 2 involving intelligence rather than emotions or instinct.


Not sure if it’s right

The organs in the human body perform specific functions for survival.

Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body

Which of the following correctly identifies the organs that perform each function above?

Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain

Answers

Organ A is the heart

Organ B is the lungs

Organ C is the brain

Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.

This is the answer. Hope it helps you

Answer:

B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain

Explanation:

A bacterial cell wall is composed of: A) A polysaccharide consisting of a single type of monosaccharide unit and cross-linking oligopeptides. B) A polysaccharide consisting of 2 types of monosaccharide units and cross-linking oligopeptides. C) A polysaccharide consisting of 3 types of monosaccharide units and cross-linking oligopeptides. D) Two different polysaccharides and 1 type of oligopeptide, which are cross-linked.

Answers

Answer:

B) A polysaccharide consisting of 2 types of monosaccharide units and cross-linking oligopeptides.

Explanation:

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

Also, a unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

A bacterial cell is made up of peptidoglycan and its main function is to maintain the shape of a cell while preventing it from bursting due to osmotic pressure. Also, the bacterial cell inhibits the passage of larger molecules but allows the free movement (passage) of smaller molecules in the body of a living organism.

Basically, bacterial cell wall comprises a polysaccharide that's typically made up of two (2) types of monosaccharide units and cross-linking oligopeptides.

Genetic engineering involves various stages.

1 human DNA is inserted into bacterial plasmid DNA
2 recombinant plasmid inserted into bacteria
3 restriction enzyme cuts bacterial plasmid DNA
4 restriction enzyme cuts human DNA

What is the correct sequence for genetic engineering?​

Answers

Answer:

4, 3, 1, 2

Explanation:

FIRST: cDNA is synthesized to be used as a gene of interest: processed (spliced) mRNA (no introns) is reverse transcribed to cDNA using reverse transcriptase, an enzyme from retroviruses

SECOND: Restriction enzyme used to cut GOI

THIRD: Same Restriction enzyme used to cut plasmid (sticky ends are created)

FOURTH: GOI connects/hybridizes with plasmid due to base-pairing

FIFTH: DNA ligase connects the recombinant DNA strands

¿En qué momento se produce la hinchazón del tejido?

Answers

Answer:

Es el agrandamiento de órganos, piel u otras partes del cuerpo, causado por la acumulación de líquidos en los tejidos. La presencia de líquido extra puede llevar a un aumento rápido de peso durante un período corto (de días a semanas).

Other Questions
Which two excerpts avoid wordiness and redundancy A _____________ strategy entails an organization developing a product and/or service that offers unique attributes that are valued by customers and that the customer perceives to be distinct from competitor offerings. Adverbial Clauses Of ConcessionWhich is the right answer Find the measure of the indicated angle to the nearest degree. Mr. J, aged 38 years, presents to the clinic today for his routine physical. During the review of systems, he offhandedly mentions that he has a "knot" in his neck, but he figures it is no big deal since it does not hurt. He also reports occasional fever and chills, and the last several weeks, he has awakened drenched in sweat. He attributes this to the fact that he was around his niece and nephew who were both recovering from the flu. 1. What other questions would be helpful to determine the source of these symptoms? 2. The healthcare provider (HCP) has ordered a chest x-ray because he is suspicious of Hodgkin lymphoma. What is the rationale for this order? A square has a perimeter of 4 cm. What is the length of each side? What strategies did slaves employ to resist, revolt, and sustain their own independent communities and cultures? H A group of students are designing a field study to investigate the length of time a traffic light remains yellow. evaluate expressions 1. find the value of f(x) = 3x -2 when x is given value a.). f(3) b.) f(-5) c.) f(0) Write the equation of the line that passes through the points (7,5) and (-7,-8). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line. The following is what kind of reaction?2 CH4 +4 02 2 CO2 + 4H2O ___ is writing that is not influenced by personal feelings or opinions.MoralObjectiveMotivationsDialogue How can you say gravitational force is a field force what percent of 65 gives you 33 what is mean by measurement a sphere of diameter 6.0 cm is moulded into a thin wire of diameter 0.2 mm calculate the length of the wire in metres need help with french assignment One of your users suspects that the battery in their notebook computer is failing. You test it by using a known good power adapter to plug it in long enough to receive a full charge. The battery reads that it is fully charged in Windows. You then disconnect the laptop from its power source and wait to see how long the battery lasts. The battery dies after only about 15 minutes. What should you do to resolve to this problem?A. Assume the battery is failing and replace it.B. is failing and replace it.Configure the Power Scheme settings to minimize battery usage.C. Put the battery in another notebook to verify that its the battery that is failing.D. Calibrate the battery to synchronize the power meter to the actual charge capacity of the battery. In an atom, electrons have a negative charge and protons have a positive charge. One negative andone positive cancel each other, just like zero pairs. An atom has 354 electrons and 139 protons.What is the amount and type of charge? Light of a given wavelength is used to illuminate the surface of a metal, however, no photoelectrons are emitted. In order to cause electrons to be ejected from the surface of this metal you should: ___________a. use light of the same wavelength but increase its intensity.b. use light of a shorter wavelength.c. use light of the same wavelength but decrease its intensity.d. use light of a longer wavelength.