Answer:
Explanation:
This should be you lol
Resuelve el problema relacionado con las etapas del ciclo menstrual: "Si el día fértil de la polola de Luciano es el 09 de noviembre y ella tiene un ciclo de 28 días ¿ Cómo puede calcular el primer día de menstruación de su polola en ese mes y el período fértil? En la respuesta debes registrar: Primer día de menstruación, Día de ovulación y período fértil.
Answer: El primer día de la menstruación comenzaría el 26 de octubre y el período fértil es desde el 6 de noviembre hasta el día 9 (fecha de ovulación)
Explanation:
El ciclo menstrual está compuesto por cuatro fases: menstruación, fase folicular, ovulación y fase lútea.
Menstruación: Eliminación del revestimiento engrosado del útero (endometrio) del cuerpo a través de la vagina. El flujo menstrual contiene sangre, células del revestimiento del útero (células endometriales) y moco. La duración media de un periodo es de entre tres días y una semana.Fase folicular: Comienza con la menstruación y termina con la ovulación. La glándula pituitaria libera la hormona estimulante del folículo (FSH), estimulada por parte del hipotálamo. Esta hormona estimula al ovario para que produzca entre cinco y 20 folículos (nódulos o quistes diminutos), que se acumulan en la superficie. Durante la fase folicular, el folículo en desarrollo provoca un aumento del nivel de estrógenos. El hipotálamo, en el cerebro, reconoce este aumento y libera una sustancia química llamada hormona liberadora de gonadotrofina (GnRH). Esta hormona hace que la hipófisis produzca niveles elevados de hormona luteinizante (LH) y FSH. En el plazo de dos días, los altos niveles de LH desencadenan la ovulación. Ovulación: El óvulo es conducido hacia la trompa de Falopio y hacia el útero por medio de ondas de pequeñas proyecciones similares a pelos. La vida del óvulo típico es de sólo unas 24 horas. A menos que se encuentre con un espermatozoide durante este tiempo, morirá. Entonces, la ovulación consiste en la liberación de un óvulo maduro desde la superficie del ovario. Suele producirse en la mitad del ciclo, unas dos semanas antes de que comience la menstruación.Fase lútea: Durante la ovulación, el óvulo se desprende de su folículo, pero el folículo roto permanece en la superficie del ovario. Durante las dos semanas siguientes, aproximadamente, el folículo se transforma en una estructura conocida como cuerpo lúteo. Esta estructura secreta progesterona y estrógeno. Esta combinación de hormonas mantiene el revestimiento del útero engrosado, a la espera de que se adhiera un óvulo fecundado (implante). Si el óvulo fecundado se implanta en el revestimiento del útero, éste produce las hormonas necesarias para mantener el cuerpo lúteo. Esto incluye la gonadotrofina coriónica humana (HCG), la hormona que se detecta en un análisis de orina para detectar un embarazo. El cuerpo lúteo sigue produciendo los niveles elevados de progesterona necesarios para mantener el grosor del revestimiento del útero. Si no se produce el embarazo, el cuerpo lúteo se marchita y muere, normalmente alrededor del día 22 de un ciclo de 28 días. El descenso de los niveles de progesterona hace que el revestimiento del útero se desprenda (menstruación)La duración media del ciclo menstrual es de 28-29 días, pero puede variar entre las mujeres y de un ciclo a otro. La duración del ciclo menstrual se calcula desde el primer día de la menstruación hasta el día anterior al inicio de la siguiente.
Si consideramos que el primer día fértil es el 9 de noviembre y el ciclo es de 28 días, el primer día de la menstruación comenzaría el 26 de octubre y el período fértil es desde el 6 de noviembre hasta el día 9 (fecha de ovulación) Esto es porque la menstruación ocurre aproximadamente 14 días luego de la ovulación si el ciclo es de 28 días. Los días más fértiles son aproximadamente desde 3 días antes de la ovulación. Aunque en algunos casos, la fertilidad puede durar hasta dos días después de la ovulación.
1
Select the correct answer.
The
is the underlying message or idea in a literary work.
A.
summary
B.
lesson
Oc.
theme
OD.
subject
Answer:
i think the correct answer is c
Explanation:
hope this is correct
Suppose 10,000 units of energy are available at the level of the grasses. What is the total number of energy units available by the time energy reaches a coyote that eats herbivores?
Answer:
90 units........................
Hereditary information is passed from one generation to the next. Which two processes are responsible for the passage of hereditary information from generation to generation in mammals, birds, reptiles, fishand other animals?
A.Meiosis and fertilization B. Mitosis and fertilization C. Mitosis and Meiosis
D. Asexual reproduction and sexual reproduction
Answer: c
Explanation:
Meiosis and fertilization, two processes are responsible for the passage of hereditary information from generation to generation in mammals, birds, reptiles, fish and other animals.
What is meiosis and why is it important?Meiosis occurs in chromosomes which allows the production of haploid germ cells necessary for seˣual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.
Fertilization restores the diploid number of chromosomes, that is 46 in human being. It provides stimulus for the ovum to complete its maturation.
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culture of honey bees is called ……………….
a)pisciculture b)apiculture c)sericulture d)none
B. Apiculture
Explanation:
I know this because I learned it in class before
Which of the following is a true statement about mitosis and meiosis?
Group of answer choices
A.Mitosis produces haploid cells, but meiosis produces polypoidy cells.
B.Mitosis produces haploid cells, but meiosis produces diploid cells.
C.Mitosis produces diploid cells, but meiosis produces haploid cells.
D.Mitosis produces monoploid cells, but meiosis produces haploid cells.
Answer:
C. Mitosis produces diploid cells, but meiosis produces haploid cells.
Explanation:
Mitosis produces 2 diploid cells that are identical to each other, and meiosis produces four haploid gametes (sex cells) that are different from one another.
Jamal investigates several interactions among organisms in a woodland ecosystem. He observes that coyotes hunt and kill white-tailed deer. He learns that lungworms live in the lungs of the deer, making it difficult for the deer to breathe. He also learns that larvae of nasal bot flies live in the nasal passages of the deer and cause them minor harm.
Which sentence describes the lungworms and fly larvae?
A. They are both hosts.
B. They are both predators.
C. They have different niches in the same habitat.
D. They compete for the same resources in a shared niche.
Answer:
C. They have different niches in the same habitat
Identify and describe three mechanisms of movement of lymph through the lymphatic vessels.
Answer: Lymph fluid can only flow forward through lymphangions due to the closing of valves after fluid is pushed through by fluid accumulation, smooth muscle contraction, or skeletal muscle contraction if that makes sense. Without valves, the lymphatic system would be unable to function without a central pump.
Explanation:
Is it true that a lizard is the venomest creature?
Explanation:
While most snakes and lizards in North America are not poisonous, a few species can seriously injure or kill someone with their venom if the bite isn't treated quickly. They include the rattlesnake, copperhead, cottonmouth, coral snake, Gila monster, and Mexican bearded lizard.
Answer:
Yes and No
Explanation:
There are many lizards that are quite harmless to people ( in fact most of them) but you can still find ones that are unusually furious and deadly , hope this helped :)
Chemotherapy is associated with
germicides
ant infectives
antibiotics
all of the above
Answer:
B) anti-infectives
Explanation:
I just finished this lesson.
Which of the following best represents the correct sequence of letters in Photosynthesis? *
A. 1
B. 2
C. 3
D. 4
Answer:
I think it's B
Explanation:
I hope this helped :)
WILL GIVE BRAINLIEST IF CORRECT
The two mice pictured below are genetically identical. How were they produced?
Answer:
Both of the mice had the same allels by the parents (EE)
Explanation:
2. When two species compete for the same
resource, they sometimes divide this
resource. This is an example of
a. niche partitioning
b. niche equivalency
c. evolutionary response.
d. ecological equivalence
Answer:
a
Explanation:
When two species compete for the same resource, they sometimes divide this resource. This is an example of niche partitioning. Hence, the correct option is A.
What is niche partitioning?Niche partitioning refers to the process by which different species divide up available resources in an ecosystem, such as food, habitat, or mates. This division of resources reduces competition between species and allows them to coexist in the same ecosystem.
It can also occur in terms of behavior or timing of an activity. In general, it helps to reduce competition between species, allowing them to coexist and thrive in the same ecosystem. For example, same species of bats hunting on same type of insects will hunt in the different time of the day to reduce competition.
This allows for greater biodiversity and stability in an ecosystem. Hence, the correct option is A.
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How is your body temperature held constant despite different weather temperatures
outside?
Answer:
Core body temperature The body can only stay at a constant temperature if the heat generated is balanced and equal to the heat lost. Although the core temperature must be close to 37°C, fingers and toes can be colder. This is because energy is transferred from the blood as it travels to the fingers and toes.
Answer: When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
Explanation:
What is the ideal location for a radioactive waste storage facility?
A. in an area with a lot of people
B. far away from ground water
C. in an area that has a lot of earthquakes
D. in an area that already has a lot of background radiation
Answer:
B
Explanation:
It is really bad if the radio active waste spilled and got in the water or get on people. Putting it where other backround radiations are will worsen the area and may affect the waste. the earthquake area would put the facility indanger of coming down and spilling the waste all around it.
What is a model system? Please give an example.
Which correctly lists the three elements that geologists measure to determine the age of an organism's remains?
argon, nitrogen, and carbon-12
carbon-14, nitrogen, and carbon-12
O nitrogen, potassium, and carbon-14
carbon-12, potassium, and argon
Answer:
I think that it will be option b. Carbon 14. Nitrogen. Carbon 12
Explanation:
They use something called carbon dating and its measured by the half life decay of the radioactive isotopes in carbon I believe
Answer:
Hi, there the answer is
carbon-12, potassium, and argon
Explanation:
How will antibiotic resistance affect human populations if no action is taken by our healthcare system?
Answer:
Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria. Antibiotic resistance leads to higher medical costs, prolonged hospital stays, and increased mortality
Which statement describes combined forces that are balanced?
*They result in a net force less than 0 Newtons
*They result in a net force of 0 Newtons
*They result in a net force greater than 0 Newtons
Answer:
option b is right answer
This is a test...Whoever gets it right, will receive 5 stars, and a Thanks. You have 2 minutes.
What is the bite force of a lion, compared to a chihuahua. Your time started when you started reading this.
Answer:
Chihuahua bite force in pounds is 3,900 (psi) pounds per square inch. The bite force of a lion is around 600 PSI. To say that a Chihuahua can bite at more than 6 times the strength of a lion is absolutely ridiculous. At first I thought the opposite.
Answer:
A Chihuahua can bite 6 times PSI a lion can. A lion can bite roughly 650 PSI, the small dog's bite is around 3900.
Explanation:
Punnett's Squares
These show the 2 alleles of each parent plant crossed with each
other and the resulting 4 possible offspring with T= tall, = short.
TT = dominant tall, 17 = recessive short, Tt = mixed hybrid
TT = dominant tall (genotype tall, phenotype tall)
Tt = mixed hybrid (genotype hybrid, phenotype tall)
tt = recessive short (genotype short, phenotype short)
Using the Punnett's Squares below, name the offspring of all possible parent combinations
Answer:
All answers are in the image
Which of these benefits the grassland by allowing light, warmth, moisture, and nutrients back into the soil?
ponds
fires
rainfall
trees
Question 8 (2 points)
Which of the following terms identifies all of the interactions between living and
nonliving things within an area?
1.) ecosystem
2.) food web
3.) energy pyramid
4.) food chain
If an atom has 34 protons, 23 neutrons, and 36 electrons, what would be it's atomic number?
Answer:
34
Explanation:
it's atomic number is the same as it's number if protons
what
is added to make RNA?
Which of the following terms signals the reader that
one event or factor caused another?
A. Meanwhile
B. In order to
C. Finally
D. Hence
SUBMIT
A person infected with HIV may
have viruses reproducing in helper T cells.
All of the above
develop the disease called AIDS.
be more susceptible to a variety of pathogens.
Explanation:
i think all of them its bettee to answer here than Philippine
Answer:
All of the above
Explanation:
HIV (human immunodeficiency virus) is a virus that attacks the body's immune system. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome).Once inside the T-helper cell, HIV converts its genetic material into HIV DNA, a process called reverse transcription. The new HIV DNA then enters the nucleus of the host cell and takes control of it.
^Hope that helps, Hazel^EASY POINTS!! Which can be studied as a scientific investigation?
A)Blue is the best color.
B)Vegetarianism is better for the environment than non-vegetarianism.
C)Country music is more enjoyable than hip-hop music.
D)All students should be required to wear uniforms to sch
Question 14 (2 points)
A series of organisms listed in a way that shows which is a food source for another is
called a(n)
A
while an)
Ą
is made up of multiple connected energy paths in an ecosystem.
Answer:
a
Explanation:
the answer is a ecosystem
In which of the following scenarios is it most likely for a volcano to develop?
c. two oceanic crusts converge
b. two continental crusts converge
c. oceanic crust diverges with continental crust
d. oceanic crust converges with continental crust
Answer:
The answer is D.Oceanic crust converges with continental crust.