How does pregnancy begin?
A. A placenta forms in the uterus.
B. Contractions begin in the uterine wall.
C. A sperm reaches an egg in the fallopian tube.
D. The blastocyst differentiates into two cell types.

Answers

Answer 1
the answer is c a sperm reaches an egg in the Fallopian tube
Answer 2

Pregnancy begins with reaching of sperm to an egg in the fallopian tube. The correct option is C.

What is fertilization?

Fertilization is outlined as the merger of two haploid gametes, the spermatozoa and the oocyte.

It happens for the establishment a zygote and initiate a sequence of mitotic divisions that consequences in cell differentiation and embryo progression.

Fertilization is the starting point of pregnancy.

Thus, the correct option is C.

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Related Questions

What are the 4 bases on nucleotides in DNA?

Answers

Thymine, Adenine,Cytosine and Guanine

what is organic farming?

Answers

Answer:

Organic farming is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones. ... provide attentive care that promotes the health and meets the behavioural needs of livestock

Directions Make a list of objects, products, and any other items around your house where plants were involved in the production of the item. You should have a list of at least twenty items. Then respond to the following questions: Note: Your list of objects and the answers following should be at least 200 words in length. What if plants no longer existed on Earth? How would your life be different?

Answers

Answer:

-20 items-

Bed

Cat

Dog

desk

water

stove

oven

chair

toilet

shirt

shampoo

shoes

backpack

food

socks

paper

pencil

table

mask

towel

If Plants no longer existed on earth then there would be no way for carbon dioxide to be converted into oxygen, without oxygen animals and humans alike would die. The Worlds "Air" would be toxic for us to breathe, we need plants to survive. Without plants, animals would die of starvation, and predators would as well without substance.

Answer this for 10 points please

Answers

Answer:

since the heterozygous genotypes are two different alleles, so basically like 'Aa'

therefore the answer is : Rr Ss Kk Pp Mm Bb

A small intestine contains lymphatic vessels but no capillaries. Which nutrient will be absorbed by the small intestine.
A. Simple carbohydrates
B.Amino acids
C.Fatty acids
D. All of the above

NO LINKS

Answers

all of the above; carbohydrates, lipids (fatty acid), and protein (amino acid)

This biome has a cold harsh climate and short growing season.

A)Temperate Forest
B)Taiga
C)grasslands

Answers

I think the grasslands is the answer not sure tho hope I helped :))

Grassland biome has a cold harsh climate and short growing season.

What is Grassland?

Grasslands can be found in regions with regular rainfall levels that are insufficient for a forest to thrive but not so low that a desert develops. Indeed, meadows are frequently found between deserts and woods. Grasslands cover anywhere from 20 to 40% of the planet's geographical area, depending on how they are characterized.

They exist on every continent, with the exception of Antarctica, and are often open and flat, making them susceptible to pressure from burgeoning human populations.

Agriculture, excessive grazing, invasive species, unreported hunting, and climate change are some of the threats to natural grasslands and the wildlife that inhabits them.

Therefore, Grassland biome has a cold harsh climate and short growing season.

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Mitosis is the process of one cell splitting apart to form two cells.
True
False
______________________________

QUESTION 2.

Chromatin consists of long strands of material located within the nuclear membrane.

True
False
______________________________________

Question 3.

The process of producing new cells is called cell reproduction.

True
False

Answers

Answer:

1.true

2.true

3.False.

Explanation:

for the third guess it should be cell division

TRUE OR FALSE Ammonia, urea, and uric acid are nitrogenous wastes by different animals.

Answers

True. Ammonia, urea, and uric acid are nitrogenous waters by different animals.

Explanation:

true

salamat sa points

pa brainliest

What are the differences between the transport of materials in xylem and phloem ? I need long answer, pls help me guys.​

Answers

Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Transport in xylem requires physical forces such as transpiration pull. Transport of food in phloem requires energy in the form of ATP.

what is the difference between mitosis and meiosis?

Answers

Answer:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Mitosis- my toeses
Meiosis- mayosis

What is chemical energy? What is mechanical energy? Give an examples. Your answer:

Answers

Answer:

Below

Explanation:

Chemical energy is stored chemicals as energy.

Chemical energy is in the food we eat.

Mechanical energy is kinetic and potential energy put together tomake movement.

Example: When bowling the bowling ball has mechanical energy, when the ball hits the pins, mechaincal energyis tranferred to the pins.

Brainilest?

can anyone help me it due today?​

Answers

Answer:

Hi how are you doing today Jasmine

Answer:

3

Explanation:

primary consumers/1st order heterotrophs

In pea plants, round peas are dominant over wrinkled peas. In a cross between a
heterozygous round pea plant and a wrinkled pea plant, what is the phenotypic ratio of
their potential offspring? Use a Punnett square to justify your answer

Answers

Answer:

2:2

Explanation:

2 offspring will be Rr, which is round

2 offspring will be rr, which is wrinked

Therefore, the ratio will be 2:2

Plzzzzz help me this is a test i have to do

Answers

Answer:

A is the answer

Explanation:

Answer:

D is the answer bc metamorphic rock is when substance are under intense heat and pressure and form a solid rock

((I need the questions a. and b. please)))​

Answers

Answer:

Genotypic ratio: 2:2

Phenotypic ratio: 2:2

Explanation:

There are 2 combinations of Hh and 2 combinations of hh

There are 2 chances that the offspring will have 2 heads

There are 2 chances that the offspring will have 3 heads

The Five Kingdom classification system was used until the invention of:
A. the microscope.
B. the scientific method.
C. DNA sequencing.
D. genes.

Answers

I would say microscope because that’s what was used to to figure out about these other organisms. Sorry if not

The Five Kingdom classification system was used until the invention of option A. the microscope.

What are the five kingdoms?

The living organisms should be divided into five different kingdoms i.e.

FungiProtistaAnimaliamoneraAnd the plantar.

These are based on the attributes like the structure of the cell, nutrition mode, reproduction mode, etc,

Based on this, we can say that The Five Kingdom classification system was used until the invention of option A. the microscope.

Correction on the title: What are the five kingdoms Please use bullets to enumerate the kingdoms

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During Anaerobic respiration, cells make energy without:
Oxygen
Water
Carbón Dioxide
Energy (ATP)

Answers

During anaerobic respiration , cells make energy without Oxygen

the energy obtained during anaerobic respiration is 2 ATP

helppppppppppppppppp meet plezzz​

Answers

Answer:

50 percent is the anwer.

in the table below list the advantages and disadvantages of using each stem cell to ad a treatment for lupus

Answers

I’ll try to find this one out

Carbon monoxide (CO) is an odorless, colorless, and tasteless gas that is toxic in high enough concentrations. It can be a by-product of burning fossil fuels. CO binds irreversibly to the protein (hemoglobin) that transports O2 throughout your bloodstream. As you are exposed to high amounts of CO over a period of time your available hemoglobin becomes unable to bind to O2 because it is bound to CO. In your own words, explain what would happen to cellular respiration and what overall effect this would have on the organism.

Answers

Answer:

Carbon monoxide has much more affinity for the hemoglobin than the affinity of the oxygen to the hemoglobin almost 300 times more, which allows the Hb to bind with carbon monoxide irreversibly. Due to this, the small quantity of CO can also reduce the ability of oxygen transport of the hemoglobin.

Longer exposure of CO to the cHb will lead to reducing oxygen release by the Hb that is bound to oxygen in this T state which causes less oxygen availability. In aerobic oxidation mechanisms like oxidative phosphorylation will eventually stop. It will be shifted to anaerobic cellular respiration. The net production of ATP drastically reduced due to anaerobic glycolysis. Cells will eventually start to die causing the death of an organism.

Compare and contrast eukaryotic and prokaryotic cells. Give at least three examples for each.

Answers

Answer:

Prokaryotic cells are unicellular organisms, which reproduce through binary fission. In some cases few prokaryotic organisms also reproduce by budding. Prokaryotic cells have a cell envelope, which generally consists of a capsule, cell wall, cytoplasm, plasma membrane, cytoplasm region or nucleiod region, ribosome, plasmids, pili and flagella.

Does the addition of either the salt solution or distilled water affect the cell wall of plant cells?

Answers

Answer:

hypotonic= cell grows

hypertonic=cell shrink

Explanation:

Blood, a component of the ____________ , acts as the medium of hormone transportation throughout the body.

Answers

Answer:

BODY is the answer

Explanation:

Pls mark BRAINLIEST

circulatory system !!

Identify one major greenhouse gas that contributes to global warming.​

Answers

Answer:

Indeed, carbon dioxide, a byproduct of fossil fuel combustion, is the principal greenhouse gas contributing to global warming. However, other greenhouse gases including methane, nitrous oxide, and a number of industrial-process gases also are important contributors to climate change.

Explanation:

Explain 2 ways that humans are decreasing the carrying capacity of earth

Answers

While food and water supply, habitat space, and competition with other species are some of the limiting factors affecting the carrying capacity of a given environment, in human populations, other variables such as sanitation, diseases, and medical care are also at play.

Hope it helps you...

what is the symbiotic relationship that exists between the pseudoscorpions and the beetle.​

Answers

Answer: One of the larger male pseudoscorpions will prevent other males from boarding the beetle, but will happily allow females on, in the hope of mating with them before they reach their destination. This is a symbiotic relationship.

What acts as the final destination for chromosomes during mitosis?

Answers

Answer:

Telophase

Explanation:

if you're asking what the final stage of mitosis is called

Answer:

Telophase

Telophase is the fifth and final phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. Telophase begins once the replicated, paired chromosomes have been separated and pulled to opposite sides, or poles, of the cell.

Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Construct at least two possible hypothesis for the students experiment

Answers

Answer:The student's observations before he starts his experiment are that his tomato plants grew faster and taller with his artificial fertilizer rather than without any fertilizer at all.

Explanation:

i want brainliest pls

What is the purpose of a control in this experiment?

Question 9 options:

The control is the tube that only has milk in it.


The control is the one tube that we know will show milk digestion.


The control is the one tube that we know will not show milk digestion.


The control is the only one the scientist changes.

Answers

Answer:

I can't definitively answer this because I don't know the experiment, but I can help.

Explanation:

The "control group" of an experiment is like a dry simulation, where there is no variables changed across all the different trials you do. This is different from a dependent variable or an independent variable. Using your newfound knowledge of what a control group is you can automatically cross off the last option.

Since I cannot see what your experiment was I can't give you which of the top 3 answers it is however. You need to look at which one has no change.

If I were to blindly guess I would say the top option seems like the most likely answer.

Cyclins are a family of proteins that ________
A) Regulate the cell cycle
B) Produce enzymes
C) Cause cancer
D) Destroy toxins

Answers

Cyclins are a family of proteins that [ A ] Regulate the cell cycle

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Plsssssss help meeeeeee the answers are : oil spills, and coastal developement A marketing research firm believes that more than half of adults drink mostly either regular or diet soda. To test this claim, Gallup took a nationally representative sample of 2027 adults and asked them about their soda consumption. The survey shows that 950 of those surveyed drink mostly either regular or diet soda. The test statistics for the above hypthesis test for the proportion of adults who drink mostly either regular or diet soda is:________. (Round your answer to two decimal places) put the quadratic into vertex form and state the coordinates of the vertex y = x + 6x - 41 Attention HELPPPPPP!!!!! HELP I'LL GIVE BRAINLIEST Which statement best describes a required component of cell differentiation?A. The transcription of the myoD gene.B. The selective loss of certain genes from the genome.C. The production of tissue-specific proteins.D. The movement of cells. whats with these random people always answering with "cutlnk.ml/0tj3C" pls Besides plants, list 2 other organisms that carry out photosynthesis.HELP PLEASE!!!! HELP!!! I MIGHT FAIL THE 6th GRADE IF I DON'T GET HELP!!!! The southern United States experiences periodic occurrences of severe cold and drought conditions. Which weather phenomenon most likely causes this and why? Sailors once used a unit of length called a fathom to measure the depth of the water. Each fathom is equal to 6 feet. Which equation represents the relationship between x, the depth of water in fathoms, and y, the depth of the water in feet? He served the interests of the mid-western states. Kathy wants to know how many students in her city use the internet for learning purposes. She used an email poll. Based on the replies to her poll, she found that 83% of those surveyed used the internet. A study was conducted to investigate the effectiveness of a new aspirin-derivative in reducing pain. Results for randomly selected subjects are presented in the Assignment # 8 Excel worksheet. A lower score indicates less pain. The "before" value is matched to an "after" value and the differences are calculated ( on your excel worksheet ) . The differences have a normal distribution. Are the pain-reduction measurements, on average, lower after taking the new aspirin-derivative ? Test at a 1 % significance level. what is the slope and y-intercept to -3x + y = 1 How many solutions?3(x + 4) = 3x + 12 What is another name for antioxidant A help desk has two employees with one working during the day and one working at night. The number of hours the first employee works (X1) is normally distributed with mean 8.6 and standard deviation 0.1 and the number of hours the second employee works (X2) is normally distributed with mean 8.4 and standard deviation 0.9. Suppose that the amount of time that the employees overlap (X3) is normally distributed with mean 0.2 and standard deviation 0.2. Finally, assume that X1, X2, and X3 are independent. We are interested in the total time that the help desk has an employee present, i.e., Z = X1 + X2 - X3. A) What is the expected value of Z, the total time that the help desk has an employee present? B) What is the variance of Z? C) What is the probability that Z is between 15.9 and 16.1? D) What is the probability that Z is greater than 16? Following the 1938 congressional elections, president Roosevelt found that he lacked the support he needed to pass more new deal laws true or false? Need help ASAP QUESTION 13 1. TEMPERATURE Suppose the temperatureoutside is dropping 3 degrees eachhour. How much will the temperaturedrop in 8 hour?