Explain spermatogenesis and oogenesis.

Answers

Answer 1

Answer:

yep, my explanation

Explanation:

you see, it is a very dirty cycle, when you have a dioploid cell, you have your typical duplication of sister chromotids, but producing sex cells or gametes which would become a zygote through dirty interactions come to form one dioploid cell and it will start doubling like the rest of the human body, until it comes out of the other human's body. meiosis, or the formation of gamates are created with a crossover where one diolpoid cell takes one half of the chromosome and the other half and exchange a tiny bit of it before splitting into 2 DIFFERENT gametes cells because of the cross-over and hence ther term natural selection


Related Questions

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

Answers

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.

Luisa went into the bathroom after her sister had a bath. It was full of mist and the mirror was covered with the a lot of liquid drops. What was the mist made of?

Answers

Answer:

Mist is made of water vapor.

Explanation:

The bathroom mirror and the fog that the bathroom presents after someone takes a shower, is formed by water vapor. This water vapor is formed by the hot water from showers, which evaporates. This water vapor is what forms the mist, however, when this mist touches the surfaces of the bathroom, such as the mirror, it becomes water again and that smothers the mirror. The mist becomes water when touching the mirror because of the difference in temperature between them, as the mist is hot and the mirror is cold. This happens through the condensation of water.

Why are third parties important in a political system?

Answers

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.

Study the image of ammonia. How many atoms of each element bond together to create this molecule?
please help..
its sciences

Answers

One nitrogen and then 3 hydrogen

From the image, we can see that:

3 atoms of Hydrogen element and 1 atom of Nitrogen element bond together to create Ammonia molecule.

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

Answers

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.

प्र.नं. १ समूह'क' मा दिइएकोश

लेख्नुहोस् :

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]

Answers

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

Question 5 of 10
Which is caused by the uneven heating of air?
A. Altitude
B. Wind
C. Humidity
D. Rain
SUBMIT
Need help ASAP

Answers

Answer:

B. Wind

Explanation:

Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes.

During strenuous exercise, lactic acid fermentation begins because the muscle cells are not getting enough


water

glucose

oxygen

ATP

Answers

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.

what is the location and function of abdominal lymph nodes?

Answers

Lymph vessels send lymph fluid through nodes throughout the body. Lymph nodes are small structures that work as filters for foreign substances, such as cancer cells and infections. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.

Which is not a major reservoir of carbon?
O rivers and lakes
O oceans
O living things
O fossil fuels

Answers

Answer:

i think its fossil fuels but dont dont quote me on that

in your own words, what is the definition for Exocytosis?

Answers

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

Answers

Answer:

1True

Explanation:

Because plants and animals are in various relation. example Food air and e.c.t.

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.

Answers

Answer:

hfdjjjjjjhgjluhb

Explanation:

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

Answers

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

Answers

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.

Explain the difference: a myelinated axon conducts impulses faster than non-myelinated axon of the same diameter

Answers

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:

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.

Answers

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

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

Answers

Answer:

c

Explanation:

a b and c are all signs of life but energy can be in objects not just life.

Would you predict more earthquakes in areas where tectonic plates are colliding or where they are moving apart?
PLSS HELPP MEEE

Answers

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:

PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F

Answers

Uhmmmm that’s definitely false.

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

Answers

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.


Which three statements are true about the energy flow in an ecosystem?

Answers

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 :)

PLEASE HELP! WILL MARK BRANLIEST!

Fill in the correct answers in the boxes below.

Answers

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

Answers

2 percent
The fresh water is only present in the form of glaciers and the water flowing in the lakes and the rivers. The fresh water source occupies approximately 3% of the total water present on the earth. Hence, the value closely related to the amount of the fresh on the earth is 2 percent.

2%

that is the answer

5. Our nervous system and our skeletomuscular system help us react to stimuli. Give one example on how this helps us maintain homeostasis.

Answers

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

What are the base units the SI units are based on

Answers

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

the unaided eye perceive stars of the _______ magnitude

Answers

Answer:

sixth

Explanation:

yeah that's the answer but It said to explain so I'm jus telling u

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).

Answers

Answer: The answer is c

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?

Answers

Answer:

La zona intermareal

Explanation:

Por que en la información del texto

Answer:

Intertidal zone

Explanation:

I took the assigment :)

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?

Answers

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).

Other Questions
The high temperature in the upper thermosphere: a. produces a tremendous amount of heat transfer. b. would feel cold to humans due to few molecules for heat transfer. c. is produced primarily by the increased molecular activity of argon and helium. d. is more a measure of sensible temperature than kinetic energy. e. is produced by the absorption of UV radiation. Choose the solution set represented by the following graph.{x | x R, x -2}{x | x R, x > -2}{x | x R, x < -2}{x | x R, x -2} Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has mean 67 and standard deviation 10 when given to third graders. Sixth graders have mean score 86 and standard deviation 9 on the same test. To provide separate "norms" for each grade, we want scores in each grade to have mean 100 and standard deviation 20. (Round your answers to two decimal places.)(a) What linear transformation will change third-grade scores x into new scores xnew = a + bx that have the desired mean and standard deviation? (Use b > 0 to preserve the order of the scores.) a = b = (b)Do the same for the sixth-grade scores.a =b =(c) David is a third-grade student who scores 79 on the test. Find David's transformed score.Nancy is a sixth-grade student who scores 79. What is her transformed score?Who scores higher within his or her grade? Nancy or David What properties of a figure stay the same after a reflection? * According to this population pyramid of South Africa, which group has the largest number of people? A) ) Males, ages 0-4 B) Males, ages 25-29 C) Females, ages 0-4 D) Females, ages 30-34 Jeremys car travels 26 miles per gallon of gas (g). If the distance traveled (d) can be given by a function, what is the input of this function? Plz help me to conjugate and complete the sentences with the correct word.1. voy, van, ir2. tenemos, tienes3. tener (conjugate)4. difcil, sabrosa, cocida5.estudiar (conjugate)6. hacer (conjugate) 7. las tareas, las compras, las cuentas8. por la noche, de la noche9. me levant, me voy a levantar10. estudi, estudiando, estudio, estudiaste 11. estudiaste (conjugation)12. era, fue, es, fui13. entretenida, divertida, aburrida14. estar (conjugation)15. pruebas, cuentas, cartas16. grado, media, nota17. de, que, a18. casillera, periodista, orientadora19. prestar (conjugation)20. decidir (conjugation) Erika wondered if there is a relationship between the amount of sugar (in grams) and the number of calories in movie theater candy.She gathered the data from a sample of 12 types of candy and constructed the scatter plot shown below.Find the approximate slope and y-intercept (0,b) of an estimated line of best fit. 25 POINTS Find the slope of the line khan academy Fevers (below 102F): aDamage essential proteins in your body bInhibit the growth of pathogens and stimulate macrophage action cOccur late in the disease process, after the pathogen is almost eliminated dRequire emergency treatment 33X14. Aadaki cmlelerin hangisinde ikilemeninoluum yolu dierlerinden farkldr?LA) amurda bata ka ilerlemeye altk.er-B) Denizde irili ufakl talar vard.C) Maamla iyi kt geinip gidiyoruz.D) Eski psk eyalar kenara ayrd.es? Write a nuclear equation for the beta decay of Promethium-165 the dimensions of a triangular prism are given in the diagram find the volume of the prism in cubic feet . Please help me A test light with an electrical resistance of 9.00 S2 draws a current of 1.50 A whenit is connected to an electrical source. How much power does the light use? Which group was least helped by Adam Smith's invisible hand ? Drag the numbers to label the points plotted on the number line. The situation in the photograph Let me see you pass was a result of the effect of what? 5.) $28,000 invested at a rate of 4% compounded annuallya.) Write a compound interest function to model the situation. Witch part of an atom is mostly empty space? What is the total weight of all the fruit she bought?Image included