What causes the formation of a cervical plug a testorone b progesterone c luteal d estroge e follicle
Answer:
b progesterone
Explanation:
The plug is formed as soon as there is implantation of fertilized eggs. The thickness of the cervical mucus becomes different as hormone levels changes in pregnancy.
The progesterone, encourages the production of thick fluid/ mucus which brings about the formation of a plug. This prevents bacteria from getting into the uterine cavity.
Answer: The correct option is B (progesterone).
Explanation:
The cervix is the ring of muscles also called the neck of the uterus in female reproductive system. This protrudes through the anterior wall of the vagina, opening into it at the external os.
After the fertilization of the ovum by the spermatozoa, the uterus prepares for the implantation which results from the secretion of hormones. Under the influence of oetrogen, secreted by the developing follicle, the cells of the endometrium divide rapidly causing the endometrium to build up and thicken.
While the viscosity of cervical mucus changes in response to hormone levels and during pregnancy, progesterone fosters the production of highly viscous mucus resulting in the formation of a plug that forms a physical barrier to bacteria and prevents their ascension into the uterine cavity. This plug is called CERVICAL PLUG.
the unaided eye perceive stars of the _______ magnitude
Answer:
sixth
Explanation:
yeah that's the answer but It said to explain so I'm jus telling u
How does polyploidy allow speciation to occur in a single generation? Polyploid offspring produce gametes earlier in the mating season than than their diploid parents, causing reproductive isolation between the two generations. Polyploid offspring produce smaller gametes that disperse farther than the gametes of diploid parents, causing geographic isolation between the two generations. Physiological differences between polyploid offspring and their diploid parents allow them to thrive in different environments, causing geographic isolation between the two generations. Genomic differences between polyploid offspring and their diploid parents prevent them from successfully interbreeding, causing reproductive isolation between the two generations.
Answer:
Genomic differences between polyploid offspring and their diploid parents prevent them from successfully interbreeding, causing reproductive isolation between the two generations.
Explanation:
Speciation is an ecological and biological process through which new species are formed due to isolation.
In plants, polypoidy involves the possession of two complete sets of chromosomes and it leads to the origin of new species. Also, the two sets of chromosomes comprises of triploidy (69 chromosomes) and tetraploidy (92 chromosomes).
As a result of the genomic differences between polyploid offspring and their diploid parents, this usually prevent them from successfully interbreeding and consequently causing reproductive isolation between the two generations.
For each phrase below, choose the most appropriate key term from the list above
a. The improper or unsafe use of a drug
b. A drug that is inhaled as vapors
c. a drug that temporarily increases energy and alertness
d. drug withdrawal occurring in newborn infants
e. laboratory made drugs that closely resemble common illegal drugs in chemical structure and effect
f. a drug that slows the body and the brain
Answer:
a. Drug abuse
b. Inhalants
c. Stimulants
d. Neonatal abstinence syndrome
e. Club designer drugs
f. Depressants
Explanation:
Drug abuse can be defined as the excessive use of drugs that can be harmful to the individual or to others, which is associated with social, behavioral, physical and job-related problems. Inhalants drugs (e.g., glue, cocaine) are volatile drugs whose inhalation may induce psychoactive and/or mind-altering effects. Stimulant drugs (e.g., cocaine, amphetamines) are drugs that excite body functions by accelerating the activity of the central nervous system (CNS), while depressant drugs (e.g., alcohol) slow down the CNS. Neonatal abstinence syndrome occurs when a neonate withdraws from certain drugs (usually opioid drugs which interact with opioid receptors) to which he/she was exposed before birth. Finally, designer drugs (e.g., ecstasy, ketamine, LSD) are drugs synthesized in illegal labs which are commonly known as “club drugs” because they are often used and sold in nightclubs.
What are the base units the SI units are based on
Answer:
he units in the revised SI are based completely on seven unchanging quantities or “universal constants,” including the speed of light, the amount of electric charge in an electron, and the Planck constant.
hope it helps
what is the location and function of abdominal lymph nodes?
in your own words, what is the definition for Exocytosis?
Answer:
the release of cellular substances.
Explanation:
hope this helps
Indicate whether the statement is true or false.
This is Ag work please answer correctly
____ 1. Plants are used directly and indirectly to meet human needs
____ 2. A steer is a female cow that has given birth
____ 3. You have to live on a farm to be an FFA member
____ 4. We believe are the first two words of the FFA creed
____ 5. Thank you notes are required to get a job
____ 6. Only female turkeys gobble
____ 7. A first year FFA member is called a Greenman
____ 8. To be in FFA you have to be in an Agriculture class
____ 9. It is okay to let a non FFA member wear your FFA jacket
____ 10. You have to be in FFA to have an animal project
____ 11. It is okay to leave blanks on a job application
____ 12. A male turkey is called a Tom
____ 13. While in FFA official dress it is acceptable for makes to wear khaki pants
____ 14. A cow is a ruminant animal
____ 15. Cows have only one stomach compartment
____ 16. Turkeys grow to full maturity in about 4 to 5 months
____ 17. The FFA is only in the state of Texas
____ 18. The FFA emblem plow stands for labor and tillage of the soil
____ 19. There are 3 paragraphs in the FFA creed
____ 20. A turkey under sixteen weeks of age is called a roaster
____ 21. Wild turkeys are white in color
____ 22. Freeze branding is the only way to identify cattle
____ 23. A job application is one of the first barriers that you encounter before you are employed
____ 24. The gestation period of cattle is only 3 months
____ 25. Domesticated turkeys cannot fly
____ 26. A T-bone steak is considered a by- product
____ 27. The official colors of the National FFA are blue and gold
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 28. Which act established vocational agriculture courses in 1917?
____ 29. What did FFA stand for before it was changed?
____ 30. The official colors of the FFA are
____ 31. How should the FFA jacket be worn?
____ 32. List the parts of the FFA emblem
____ 33. Plants impact what environmental factors?
____ 34. When measuring a horse 1 hand= _____ inches
____ 35. Who wrote the FFA creed?
____ 36. What provides the foundation of the FFA emblem?
____ 37. The FFA emblem has how many symbols?
____ 38. The highest FFA degree members can earn is…
____ 39. The first line of the FFA motto is
____ 40. List the official Dress for females
____ 41. What are the last few words of the first paragraph of the FFA creed
____ 42. In ___________ the FFA opened membership to girls
____ 43. ______ believe in less dependence on ________ and more power in bargaining
____ 44. The Symbol on the FFA Emblem that signifies Labor and tillage of the soil is
____ 45. What does polled mean?
____ 46. breeds of cattle are known for milk production
____ 47. What do you call a neutered male cow?
____ 48. What do you call a male sheep or goat that has been castrated when its young?
____49. Swine breed most used for pets
____ 50. The most popular goat breed used for FFA projects
Answer:
1True
Explanation:
Because plants and animals are in various relation. example Food air and e.c.t.
In which ocean's zone would you expect to see the
ecosystem shown?
the open ocean
the intertidal zone
the benthic zone
the neritic zone
zone?
Answer:
La zona intermareal
Explanation:
Por que en la información del texto
Answer:
Intertidal zone
Explanation:
I took the assigment :)
Which three statements are true about the energy flow in an ecosystem?
Answer:
main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level
Answer:
A,B and E
Explanation: hope it helps you :)
What does stage 4 show?
A. A young female cone with fertilized eggs matures into a seed
cone.
B. A spore divides and grows into a pollen grain using mitosis.
C. Young male cones produce spores using meiosis.
D. A seed that contains an embryo plant grows into a young pine
tree.
Answer:
A.
Explanation:
It looks like the pine cone looks like is turning into a normal cone. That is why.
Answer: A. it looks as if its matured from being a young cone
Entre una planta alta de color purpura (AABB) con otras planta enana de color blanco (aabb), ¿cómo será el genotipo y el fenotipo de la F1 Y F2?
Answer:
- Alelos:
Locus 1: A (alto); a (enano)
Locus 2: B (púrpura); b (blanco)
- Cruzamiento parental: AABB x aabb
Genotipos F1: AaBb
- Cruzamiento F1: AaBb x AaBb
Fenotipo: 100% plantas altas púrpuras
- Genotipos F2: AABB (1/16); Aabb (1/16); aaBB (1/16); aabb (1/16); AaBb (4/16); AABb (2/16); aaBb (2/16); AaBB (2/16); Aabb (2/16)
- Fenotipos F2: 9/16 A-B- (altas púrpuras); 3/16 A-bb (altas blancas); 3/16 aaB- (enanas púrpuras); 1/16 aabb (enanas blancas)
Explanation:
Un cruzamiento dihíbrido refiere a un tipo de cruzamiento entre dos parentales que difieren para dos pares de alelos (AABB x aabb). Si consideramos dos loci de dominancia completa, un cruzamiento dihíbrido producirá una F1 heterocigota para ambos genes donde la progenie expresará ambos rasgos dominantes. Como resultado de la distribución independiente expresada en la segunda ley de Mendel, La F2 de este tipo de cruzamiento producirá un proporción fenotípica 9:3:3:1; es decir 9 individuos con ambos rasgos dominantes (A-B-), 3 con el rasgo uno dominante (A-bb), 3 con el rasgo dos dominante (aaB-) y 1 con ambos rasgos recesivos (aabb).
Because the imaginary axis of the earth is inclined to the sun at the equator, the northern and southern hemispheres shine in different ways. When it is summer in the northern hemisphere of our planet, then it is winter in the southern hemisphere
Answer:
Yes.
Explanation:
Yes, when it is summer in the northern hemisphere of earth, then it is winter in the southern hemisphere. This change of season occur due to tilting of earth. The season of northern hemisphere and southern hemisphere are different and opposite to each other because both are present at opposite location on the earth surface. The tilting region experience winter season whereas the other regions experience summer due to direct sunlight.
Genetically modified organisms include microbes used in biotechnology that possess enzymes promoting antibiotic resistance. This could be a problem given the rise of antibiotic-resistant organisms. However, these engineered microorganisms do not pose a risk to public health. What do you think prevents them from spreading antibiotic resistance to pathogens outside the laboratory
Answer:
What prevents these microorganisms from spreading resistance outside the laboratory is that they are modified to not survive outside the laboratory environment.
Explanation:
Antibiotic resistant microorganisms are very dangerous and unfavorable, as they leave living beings completely completely defenseless to their attacks. However, there are microorganisms that have been modified in the laboratory, as shown in the question above, and do not present any risk to living beings, even if they develop resistance. This is because the modification that these microorganisms received makes them not survive the environmental conditions outside the laboratory, which causes them to die if they leave the laboratory.
As native mason bees visit flowers, they spread pollen while also consuming nectar from the plant. This is an example of symbiosis.
true or fasle
Answer:
True
Explanation:
Symbiosis is a type of relationship or interaction between two different biological organisms/species by which both are benefited. The bees such as mason bees are pollinators. Pollinators are animals (especially insects) that help the development of seeds and the fruit surrounding seeds by the pollination of flowers, i.e., by the transference of pollen from male anthers of a flower to the female stigma. During this process, pollinators eat nectar, which is a sweet energy-rich liquid secreted by flowers. In consequence, both species (i.e., plants and mason bees) are benefited from this interaction.
PLEASE HELP! WILL MARK BRANLIEST!
Fill in the correct answers in the boxes below.
Answer:
The answers are as followed:
Explanation:
9: Non renewable
10: Organisms
11: Millions
Answer:
9. nonrenewable
10. I think it's plants?
11. millions of years
Explanation:
which value most closely represents the amount of freshwater on earth,as a percentage of the total water on earth
2%
that is the answer
Which of the following is NOT a characteristic of life? Also, explain why and I give you a 5 stars.
A.Made of one or more cells
B.Movement
C.Requires Energy
D.Adapts over time
Answer:
c
Explanation:
a b and c are all signs of life but energy can be in objects not just life.
PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F
What is respiration and the types of respiration
Answer:
Hey mate......
Explanation:
This is ur answer.....
Respiration is the process by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
Three types of respiration include internal, external, and cellular respiration. External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells....
Hope it helps!
Brainliest pls!
Follow me! :)
During strenuous exercise, lactic acid fermentation begins because the muscle cells are not getting enough
water
glucose
oxygen
ATP
Answer:
oxygen
Explanation:
Without oxygen aerobic respiration cannot occur. Therefore ATP is produces by anaerobic reparation which is from glycolysis only. Lactate/ lactic acid is formed when glycolysis is the only production of ATP.
Why are third parties important in a political system?
Answer:
Third parties are important in a political system because they serve an important role in our political system by forcing major political parties to address new issues they might not have previously addressed very much. And third party candidates can also greatly impact an election by taking away votes from one of the major political party candidates.
Dados los elementos Ca y Cl
a) Escribir la CE (Configuración electrónica)
b) ¿Cuál de estos átomos tiende a perder electrones y cuál a ganarlos? ¿Cuál formará aniones y cual cationes?
c) Escribir la estructura de Lewis para la sustancia iónica cloruro de calcio (CaCl2).
Answer: The answer is c
प्र.नं. १ समूह'क' मा दिइएकोश
३
लेख्नुहोस् :
क
कञ्चन
तिरष्कार
आशा गरिएको
उपेक्षा
पहिलेदेखि चलिआएको
सन्नाटा विद्युतीयपत्रवा चिठी
अनलाइन
सुनसान
इन्टेरनटमा रही सूचनाआदानप्रदान गर्ने प्रविधि
रहस्यमय
नं.२ खाली ठाउँमा उपयक्तशब्दभर्नहोस ।
[tex]7788x \times \times 789[/tex]
plz attach photo .....
Explanation:
फोटो हाले बल्ला बुझिन्छ । यसरी त के के हो के के।।।।
मिल्छ भने क्रिपया फोटो राखेर प्रश्न न सोध्नु होला
question sodda photo rakhera sodnu vako vaye bujhna sajilo hunthiyo
How is oxygen carried from your lungs into all of your cells for cellular respiration?
1. It slowly diffuses throughout your whole body from your lungs
2. It is carried by your red blood cells through your blood stream
3. Cellular respiration only takes place in the lungs, so you do not need to transport oxygen
4. Oxygen is not necessary for cellular respiration
Answer:
2. It is carried by your red blood cells through your blood stream.
Explanation:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.
Would you predict more earthquakes in areas where tectonic plates are colliding or where they are moving apart?
PLSS HELPP MEEE
Answer:
Maybe where they are colliding because when they collide there is going to be a wave of impact that will go to the surface
Explanation:
Explain the difference: a myelinated axon conducts impulses faster than non-myelinated axon of the same diameter
Answer:
A myelinated axon conducts impulses faster than a non-myelinated axon. ... Therefore, in myelinated neurones, the nerve impulse is said to jump from node - to - node, a impulse pathway known as Saltatory Conduction. This means that the action potential does not have to travel along the whole length of the myelinated axon
Explanation:
You have learned that scientists have found physical evidence of the Flood. In this project you will think about Noah and his construction of the ark.
Pretend that you are a newspaper reporter, and you are able to interview Noah. Then write a newspaper article about your interview.
Answer these questions.
What kinds of questions would you ask him?
Write a news article on your interview with Noah. (100 words or more is fine)
Need help asap just answer write the article the first 1 i already answered just copy pasted the questions
Answer:
We got a chance to speak to Noah the Ark builder. Many people of the town have been wondering what Noah has been building lately. We asked him what was his objective and he said "A great flood like no other will come, water from the sea will fall from the air. Whoever is in the ark shall be safe. Two of each type of animal on earth shall come to my ark for shelter. The storm will be so great it will knock out all who does not inhabit the ark."It is hard to understand what he means by these statements but who knows maybe his boat will take him somewhere. The people of the town have been calling him insane, since no one would need a boat that big.
(I'm guessing that you mean the interview was before the flood since everyone died after.)
5. Our nervous system and our skeletomuscular system help us react to stimuli. Give one example on how this helps us maintain homeostasis.
Answer
The nervous and skeletomuscular systems help maintain homostasis by regulating respiration.
Explanation:
The brain stem, consisting of the pons and medulla, represent the main respiratory center. According to Wikipedia, "an increased level of carbon dioxide in the blood, or a decreased level of oxygen, will result in a deeper breathing pattern and increased respiratory rate to bring the blood gases back to equilibrium."
This is an example of a homostastic response controlled by both of the organ systems referenced above.
Source: https://en.wikipedia.org/wiki/Homeostasis
A scientist is studying a cell from an unidentified organism. Which of these observations of the cell provide evidence for classifying the cell as PROKARYOTIC and NOT EUKARYOTIC? Select all that apply
The cell has a cell wall.
The cell lacks mitochondria, chloroplasts, and other membrane-bound organelles.
The cell has a cell membrane.
The cell has ribosomes in its cytoplasm.
The cell lacks a nucleus.
Answer:
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Explanation:
