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
GenaCL600 [577]
3 years ago
14

After fertilization a zygote forms. The cells then go through mitosis. Explain how this bundle of cells eventually forms a human

with specialized cells (i.e. liver cells, blood cells, neurons, etc.)
Biology
1 answer:
yaroslaw [1]3 years ago
8 0

Answer:

Human fertilization and development

Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.

Stages of human development

Zygotic stage: The zygote is formed when the male gamete (sperm) and female gamete (egg) fuse.

Blastocyst stage: The single-celled zygote begins to divide into a solid ball of cells. Then, it becomes a hollow ball of cells called a blastocyst, attaching to the lining of the mother's uterus.

Embryonic stage: The major internal organs and external features begin to emerge, forming an embryo. In this stage, the heart, brain, and spinal cord become visible. Arms and legs start to develop.

Fetal stage: Once the formed features of the embryo begin to grow and develop, the organism is considered a fetus. Differentiation and specialization of structures happens during this time.

Development overview showing the progression from zygote to blastocyst to embryo to fetus.

Development overview showing the progression from zygote to blastocyst to embryo to fetus.

Differentiation and apoptosis

During development, the number of cells must increase through division so that body axes, tissues, organs, and structures must form. Individual cells become specialized in their structure and function through the process of cell differentiation.

Unnecessary cells also must be removed in order to help form important structures. This occurs is through the process of apoptosis. For example, human hands start out as a paddle-like block of tissue. Eventually, the block was “carved” into fingers by apoptosis of the cells in between the developing fingers.

Microscope images from a scientific paper, showing a developing mouse paw. The cells between the developing digits are stained by a marker that indicates apoptotic cells.

Explanation:

You might be interested in
Many industrialized countries exist in an ecological deficit due to their lack of productive land, overproduction of waste, or l
Gre4nikov [31]

Answer: change farming techniques to conserve soil

Explanation:

4 0
2 years ago
Help asap will mark brainliest
charle [14.2K]

Answer:

second one

Explanation:

3 0
3 years ago
How many homes can a single wind turbine power?<br><br> 500<br> 300<br> 400<br> 600
bazaltina [42]

Answer:

500

Explanation:

We talked about this in my last class so about 450 but ima round it to 500

4 0
3 years ago
An atom that gains or loses electrons is called
Natasha_Volkova [10]
Ions! Hope this helped! :))
6 0
3 years ago
Read 2 more answers
What are macronutrients
Virty [35]
<span>a substance required in relatively larger amounts by living organisms</span>
5 0
3 years ago
Other questions:
  • Enzymes, antibodies, hormone, and muscle are roles played by _____?
    11·1 answer
  • What is the FITT principle?​
    13·1 answer
  • Why is interphase the longest stage of the cell cycle?
    9·1 answer
  • Which is an example of a specialized cell?
    15·2 answers
  • How do retroviruses such as hiv differ from other viruses?
    8·1 answer
  • In a large firm, what can a functional structure foster, even though it can be counter-productive to the goals of the organizati
    6·1 answer
  • The plasma membrane: Question 3 options: is the gene-containing control center that directs all cellular activities regulates th
    10·1 answer
  • What are two natural resources of air pollution
    7·1 answer
  • What is a phylogenetic tree?
    10·1 answer
  • How long is the auditory canal​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!