Menstruation occurs when.
an unfertilized egg is expelled from the body
a fertilized egg is nonviable and is expelled from the body
a fertilized egg moves to the uterus.
the lining of the uterus is shed because an ovum has not been fertilized

Answers

Answer 1
The lining of the uterus is shed because an ovum has not been fertilized
Answer 2

The menstrual cycle is referred to as a natural transition that takes place in a female's reproductive system, due to the lining of the uterus being shed because an ovum has not been fertilized, hence option D is correct.

What is menstruation?

Specifically in the uterus and ovaries, which enable conception. This cycle, which is controlled by hormonal changes, is crucial for producing oocytes and preparing the uterus to carry a fetus.

The follicular phase, ovulation, and luteal phases are the three phases that make up the menstrual cycle.

The uterus builds a wall on the uterus each month to protect and feed the fertilized egg as the body gets ready for pregnancy.

Therefore, in order to rid the uterus of any potential infections, the body will remove the accumulation in the lining when an ovum is not fertilized during monthly menstruation.

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Related Questions

Malaria is a disease caused by a microscopic parasite that attacks blood
cells. The parasite is spread to humans through the bite of a mosquito.
Malaria causes headaches, muscle pain, coughing, and fever, and
vomiting.
Why is malaria able to caused symptoms in so many parts of the body?

Answers

Answer:

its C

Explanation:

srry if im wrong:(

what are the possible controversial issues that are related to agricultural biotechnology

Answers

Answer:

GMOs

Explanation:

Many people think that they are bad because of how they are changing the product and think they are being made more poorly. More people think they are good to protect them from diseases and other things that can be hidden.

Blood type is determined by multiple alleles and can be used to determine the possible parents of an offspring. In this case, the mother has blood type B, and her child has blood type A. There are two possible fathers for this child. The phenotype of one man is type O, and the phenotype of the other man is type AB. What is the genotype of the man who is the father?
A. IAIB

B. IAio

C. ioio

D. IBio

Answers

Answer:

A. IAIB

Explanation:

Since the child has blood type A and the mother is B, one man having blood type O makes it so that the child cannot be blood type A.

IAIB is the genotype of the man who is the father.

What are Genotypes?

The type of variant present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it.

For illustration, BB, Bb, and bb could be used to denote a certain gene variant. The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype.

In a single experiment, the genotypes at millions of sites in a genome can be determined using DNA sequencing and other techniques. Some genetics influence an individual's phenotype, or observable traits.

Therefore, IAIB is the genotype of the man who is the father.

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2. Why is sunlight important to an aquatic biome?

Answers

Answer:

Sunlight, of course, is necessary for photosynthesis, which brings energy into an ecosystem. So, the availability of that sunlight has a direct impact on the productivity and biodiversity of aquatic ecosystems.

if you have 6% guanine how much of the other bases do you have? please hurry

Answers

100% total of all 4 bases and Guanine and Cytosine need to have 1:1 ratio and Adenine and Thymine need to have 1:1 ratio (This is the Chargaff's rules I think)

6% Guanine must also mean 6% Cytosine

6 + 6 = 12 100 - 12 = 88 88/2 = 44

So 44% of Adenine and 44% of Thymine

Sedimentary rocks are commonly made of ____ that are compacted and cemented together

Answers

Answer:

Sedimentary rocks are commonly made of sediments that are compacted and cemented together

Calculate the gravitational potential energy of a 1,200 kg car at the top of a hill that is 42 m high.

Answers

Answer:

Gravitational potential energy = 493,920 J

Explanation:

Given:

Mass of car = 1,200 kg

Height = 42 m

Find:

Gravitational potential energy

Computation:

We know that;

Gravitational acceleration g = 9.8 m/s²

Gravitational potential energy = mgh

Gravitational potential energy = (1,200)(9.8)(42)

Gravitational potential energy = (11,760)(42)

Gravitational potential energy = 493,920 J

Which of the following could be reasons why population sizes may reach and maintain plateaus? Select the three (3) that apply.

-fewer deaths

-limits in food supply

-competition with other species

-increased birth rates

-competition for space

-major storms

Answers

The answer is a b and d

2. (08.01 LC)
What is the Milky Way?(2 points)
A.The home galaxy for the solar system
B.The galaxy that contains all stars
C.The home of all galaxies
D.The Universe

Answers

A bc I got it wrote it is a

Answer:

A.

Explanation:

The Milky Way is the galaxy that contains our Solar System, with the name describing the galaxy's appearance from Earth, a hazy band of light formed by stars

Hope this was a stellar answer! If it was, give a brainliest :)

Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?

Answers

Answer: secondary succession

Explanation:


The process of water going through a water-permeable membrane to make the ratio of solvent to solute even describes which of the following?
Osmosis
O Osmoregulation
O Thermoregulation
ONephron

Answers

It is the first one, Osmosis

Where in the kidney does filtration occur?
O renal capsule
renal cortex
urine
O nephron

Answers

Answer:

La reabsorción del 99 % del filtrado se produce a lo largo del túbulo renal, especialmente en el segmento contorneado proximal (un 80 % aproximadamente), y el ajuste preciso del volumen y de la composición de orina definitiva se efectúa en el túbulo contorneado distal y en el túbulo colector

Explanation:

Answer:

glomerulus aka O nephron

Explanation:

Filtration takes place in the glomerulus , which is the vascular beginning of the nephron . Approximately one-fourth of the blood flow from cardiac output circulates through the kidney, the greatest rate of blood flow for any organ .

Fill in the blank to complete each statement.​

Answers

5. Seasons

6.  Rotation

7.  Eclipse

8.  Year

9.  Calander

10. Vernal equinox

Let me know if this helped! Have a great day.

HELP!!!! 48PTS!!!!

What happens to water when it warms above 4 °C? (4 points)
It contracts.
It forms ice.
Its density decreases.
Its composition changes.

Answers

Answer:

Its Density decreases.

Explanation:

trusted source used.

Answer: It’s density decreases.

As the temperature of warm water decreases, the water molecules slow down and the density decreases. At 4 °C, the clusters start forming. The molecules are slowing down and coming closer together.

During the Human Genome Project, scientists created a gene map showing the relative location of each known gene on every human chromosome. This map led to the discovery that the human genome is made up of about how many genes?

Answers

Answer:

Approximately 20,500 genes

Explanation:

The Human Genome Project (HGP) was a 13-year international research effort aimed at determining the entire DNA sequence of the human genome. The HGP was launched in 1990 and completed in April 2013. This project helped to identify and physically map all the genes of the human genome. The sequence obtained from the HGP has been a very useful point of reference in order to identify and characterize mutations associated with genetic disorders. The HGP predicted approximately 20,500 genes (each of them produces an average of three proteins), which are distributed in the 23 pairs of chromosomes in the cells of our body.

what type of blood group in human is inherited through Co-dominance?​

Answers

ABO
Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.

Question 1
Which is the correct order of steps of mitosis.
1. Metaphase
II. Telophase
III. Prophase
IV.Anaphase

Answers

Answer:

III,I,IV,II

Explanation:

Always remember PMAT when looking at mitosis. That's the acronym. Prophase, Metaphase, Anaphase, Telophase.

Answer:

B or 3 1 4 2

Explanation:

prophase, metaphase, anaphase, telophase.

3 1 4 2

Use scientific language to describe two ways that embryos and fossils are different.

Answers

Answer:Fossils are the remails of an organism and the embryos are a stage of developing a multicellular organism.

Explanation:

La interacción entre soluto y solvente que permite que se forme una disolución se denomina solvatación

Answers

Answer:

Verdadero.

Explanation:

En una solución hay un solvente y uno a más solutos. El solvente es el componente que se encuentra en mayor cantidad y que disolverá al soluto. El soluto es el componente que se encuentra en menor cantidad y que se disolverá en el solvente. Para que se forme la disolución, los iones o moléculas presentes en el soluto tienen que ser rodeados por moléculas provenientes del solvente, este proceso se llama solvatación.


Please help me with these science questions about ecology!

Circle the letter of the choice that best completes the statement or answers the question.
11. Energy that is lost at each trophic level of an ecosystern is replenished by
a. heat.
b. nutrients.
sunlight
c. sunlight
d. organisms.
12. Besides energy, what moves through the organisms at each trophic level of an ecosystem?
a. organisms
b. nutrients
c sunlight
d. cycles
13. Evaporation and condensation a part of the
a. carbon cycle.
b. nitrogen cycle.
c phosphorus cycle.
d. water cycle.
14. Plants lose water to the air through
a. condensation
b. photosynthesis.
c. Their roots.
d. evaporation
15. Animals lose water when they
a. breathe in
b. urinate.
c breathe out
d. both b and c.
16. The major process by which water in the atmosphere is returned to the earth is
a. precipitation
b. evaporation
c. photosynthesis.
d. decomposition.
17. Autotrophs and heterotrophs use carbon-containing molecules for energy and for
a photosynthesis.
b. growth.
c decomposition
d. both a and b.
18. What do plants use in photosynthesis to make carbon-containing molecules?
a carbon dioxide
b. carbohydrates
c. fertilizer
d. oxygen
19. Heterotrophs get carbon-containing molecules by
a. making the molecules themselves.
b. feeding on other organisms.
c decaying.
d. growing.
20. When decomposers break down the carbon-containing molecules in dead organisms,
a. the dead organisms are converted to coal.
b. oxygen is released.
c carbon dioxide is released.
d. carbon dioxide is converted to energy-rich
carbon-containing molecules.

Answers

Answer:

11 is A. 12 B. 13 A. 14.D 15. C 16. D

What term refers to the total
number of fossils discovered, and
the information derived
from them?
A. Geologic time scale
B. Human time scale
C. Record of fossils
D. Fossil record

Answers

Answer:

Fossil record - Hope this helps :)

What are some similarities between sex-linked traits and dominant/recessive

Answers

Answer:

What do you already know about the difference between dominant and recessive traits? Or sex-linked and autosomal traits? Dominant traits are the traits that are normally shown in an organism. Recessive traits are the traits that are not normally shown in an organism overpowered by the dominate trait.

PLSS HELP IMMEDIATELY!!! ILL MARK BRAINIEST IF U DONT GUESS OR LEAVE A LINK!!!

Answers

Answer:

B.

Explanation:

A.

B.

C.

Which of the following defines the wavelength of a wave?
A.
the distance between peaks of a wave
B.
the loudness of waves that travel through the air
C.
the height of a wave between peak and trough
D.
the speed that a wave is passed from particle to particle

Answers

the distance between peaks of a wave

Cladistic diagrams, or cladograms, can be used to show evolutionary relationships. An example of a cladistic diagram appears below.


According to the diagram, which of the following animals is most closely related to crocodiles?
A.
rodents
B.
amphibians
C.
birds
D.
primates

Answers

The answer is c
It’s birds because it’s the closest to it
Birds, to read the diagram it’s easiest to look at which the lines intersect seeing how the birds and crocodile lines intersect closest to each other than any other animal does it shows that the correlation between birds and crocodiles are closer than the rest of the animals

briefly describes what happens in each of the three phases of aerobic cellular Respiration. Include where each phase takes place and how much ATP is produced during each phase.

Answers

Answer:

b

Explanation:

In pea plants, the allele for smooth pods (S) is dominant over the allele for constricted pods (s).
Which of the following pairs of terms are correctly matched?
Choose 1 answer:
Ss - phenotype; smooth pod - genotype
SS - genotype; constricted pod - phenotype
SS - phenotype; constricted pod - genotype.
SS - genotype; constricted pod - phenotype

Answers

Answer:

ss - genotype; constricted pod - phenotype

Explanation:

trust me Lol

Pea plants having gene control phenotype of pod shape S is dominant having phenotype smooth and phenotype constricted pods having s genotype, hence option d is correct.

What is the difference between genotype and phenotype?

Phenotype is a physical observation of a trait which control by agene

and genotype is a genetic observation that can not be seen physically.

The allele which controls the phenotypic character of a plant is called the dominant over the other allele which can not show its expression, the allele is always present in a group but only the dominant will show its expression.

In a pea plant, if the allele for smooth is dominant over the other, it shows expression in allelic combination and masks the expression of constricted pods.

Therefore SS is the genotype and the constricted pod is the

phenotype, hence option d is correct.

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A donkey and a beetle both use legs for locomotion, but the donkey has an internal
has an exoskeleton made of chitin. Which of the statements accurately describe the
and beetle? Choose ALL that apply.
A)
These organisms have homologous structures and therefore have a recent
common ancestor.
B)
The DNA sequences for these two organisms will show 99% homology
since they both code for legs.
The legs of these organisms are analogous structures and do not represent
recent common ancestry.

Answers

The donkey and beetle do not share a recent common ancestor because the legs of these organisms have a common purpose but not a common structure.

What is locomotion?

A person or object can move from one point to another through locomotion, which is directional movement. Numerous fields of science, medicine, and technology are influenced by the study of locomotion.

In biomimetics (also known as "biomimicry"), which is the creation of man-made procedures, materials, tools, or systems that mimic nature, the mechanisms of locomotion may be used. For instance, designers of robots mimic human movement to produce lifelike androids.

In virtual reality and video game art and design, locomotion is a crucial field of study (VR).

Therefore, The donkey and beetle do not share a recent common ancestor because the legs of these organisms have a common purpose but not a common structure.

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What would happen to the bison population if a
drought caused many of the grasses in the prairie
ecosystem to die?
O A. The bison population would decrease
quickly
O B. The bison population would not change in
response to a change in the amount of
grasses.
C. The bison population would increase
quickly.
D. There is not enough information to form a
hypothesis about a change in the bison
population in response to a change in the
amount of grasses.

Answers

The answer is A. Their food source would be gone.

Chicken pox is a virus that causes an itchy rash but typically does not have any major or lasting effects on an infected person. Before 1995, chicken pox parties were popular. In a chicken pox party, healthy children were brought around children who were ill with chickenpox so that they would be exposed to the virus and their immune system would learn to fight it. A vaccine for chickenpox was developed in 1995, and chicken pox parties are now rare.

Which statement best summarizes this information?
Advances in society affect technology.
Advances in society affect science.
Advances in science affect technology.
Advances in technology affect society.

Answers

Answer:

Advances in society affect technology.

Explanation:

D would be the correct answer because it is the only one that relevantly shows understanding to the text. Hope this helps :-)
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