1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zepler [3.9K]
3 years ago
12

1, name the part of the reproductive system in which fertilisation happens.

Biology
2 answers:
lawyer [7]3 years ago
7 0

Answer:

°•°

Explanation:

1.fallopian tube

2.an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus)

3.First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

4.Eggs live in ovaries, and the hormones that control your menstrual cycle cause a few eggs to mature every month. When your egg is mature, it means it's ready to be fertilized by a sperm cell. These hormones also make the lining of your uterus thick and spongy, which gets your body ready for pregnancy.

5.The fertilized egg attaches to the lining of the uterus. The placenta then develops. The placenta transfers nutrition and oxygen to the fetus from mother. If the egg does not become fertilized, the lining of the uterus (endometrium) is shed during menstruation.

6.The egg cell travels down the fallopian tube into the uterus. The moment the egg cell leaves the ovary is called ovulation. Once a girl has had her first monthly period, ovulation usually occurs once a month

7.The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens. The rise and fall of levels of hormones during the month control the menstrual cycle.

Nady [450]3 years ago
4 0
I’m going for real I haven’t done this because it was hard didn’t get it but now I know // ANSWER -
You might be interested in
What differentiates galaxy groups from clusters?
Arisa [49]

Answer:

it´s <u><em>B</em></u> the answer is B

Explanation:

thats just the answer i think not too sure really but feel free to correct me is you like my dude.

8 0
3 years ago
Which is an example of hybridization that would increase hybrid vigor? producing a litter of puppies by mating two dogs of diffe
bazaltina [42]

Answer:

A) producing a litter of puppies by mating two dogs of different breeds

Explanation:

4 0
3 years ago
What is the expected phenotypic ratio of the offspring of a a BbPp*BbPp cross if these alleles sort independently?
nadezda [96]

Answer:

Let's consider that the allele 'B' is for Black hair colour and it is dominant. Let's consider that the allele for red hair colour is b.

Let's consider the allele for lacking horns or polles is 'P' and it is dominant. The allele for having horns is 'p' and it is recessive.

When two heterozygous black, lacking horns (BbPp) are crossed, the results will have the probability of 9 black/polled : 3 black/horned : 3 red/polled : 1 red/horned organisms.

8 0
3 years ago
Which event triggers the start of black hole formation?
docker41 [41]

Answer:

A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight. The collapse triggers a supernova explosion that blows off the star's outer layers.

Explanation:

8 0
2 years ago
If you had $5000 what would you do with it and why?
dalvyx [7]

Answer:

pay off student loans

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Most heterogeneous catalysts of importance are extremely finely divided solid materials. Why is the particle size important?
    12·1 answer
  • Major subdivisions of the biosphere are
    9·1 answer
  • Is a scientific hypothesis accepted if there is no way to demonstrate that the hypothesis is wrong? Please explain your answer.
    9·2 answers
  • A farmer wanted to rid his apple trees of a particular leaf-eating insect. he sprayed his trees with an insecticide that killed
    14·1 answer
  • Why does an egg change color and texture when heated? Its proteins reorder their sequence of amino acids. Its pH increases, whic
    12·1 answer
  • Question 5 (1 mark)
    13·1 answer
  • Please answer this
    13·1 answer
  • When colorblind women married a male with normal vision, all their daughters have normal vision and all their sons are colorblin
    7·1 answer
  • What is glycolysis?<br>cuz i dont know​
    11·1 answer
  • You ate a chicken sandwich with a lettuce salad. Explain how the end- products of the digestion of your meal are utilized in the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!