The images show the stages of human development. At which stage does cell differentiation start?
Answers
Cell differentiation occurs in the embryo after the third week of fertilization. The unspecialized mass of cells differentiates into specialized cells which perform specific functions.
What is Cellular differentiation?Cell differentiation is the process in which a stem cell which is present in the embryo undergoes changes to form specialized cells. The specialized cells are those cells which perform a specific function in body.
During the third week post-fertilization, the embryo begins to undergo the process of cellular differentiation. Cell Differentiation is the process through which the unspecialized cells become specialized to perform different functions. Cellular differentiation occurs as a result of certain genes which are expressed in cells while other genes remain unexpressed.
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Related Questions
PLEASE HELP WILL MARK BRAINLIEST
How is temperature related to the physical change of a substance? PLEASE MAKE THE ANSWER SCHOOL APPROPRIATE
Answers
Answer:
As temperature increases, the atoms or molecules in a substance gain energy.
Explanation:
Hope it helps!!!!
Chloe reads that given the correct conditions, cuttings from certain plants will form roots along the stem, enabling a new plant— identical to the parent plant—to grow. Chloe wants to investigate whether rooting hormone is beneficial or detrimental in this process. She takes cuttings from a shrub. For Group 1, she places some shrub cuttings in potting soil in partial shade. For Group 2, she dips some shrub cuttings in rooting hormone, places them in potting soil, covers them with a clear dome, and places them in direct sunlight. She waters the groups equally. She pulls up some cuttings after 3 days and again after 6 and 9 days to observe and measure root growth. Write a hypothesis for Chloe's experiment.
Answers
Answer:
The correct answer is - If you use the rooting hormone when cloning plants from cuttings, then it will be beneficial for the cuttings.
Explanation:
A hypothesis is a possible explanation or solution behind the particular natural world process or phenomenon. It is formed on the basis of the observation of the phenomenon or process, how it works or what characteristics it shows.
In this study, it is found that the root hormones promote the growth in the clonings from the cuttings of plants thus, the provided hypothesis is the correct hypothesis for the experiment given.
Which two body systems remove waste products from the body?.
Answers
Answer:
The urinary system and Integumentary system
Explanation:
The urinary system is the primary waste elimination system in the body. However, the Integumentary system also eliminates some waste products.
What is this bodily structure called?
Answers
Ameoba??????????????????
Sorry if anything is wrong.
Answer:
ameoba.it is really ameoba
Can someone explain how the process of bioaccumulation happens?? ‼️10 points‼️
Answers
Answer:
Bioaccumulation is the process by which toxins enter the food web by building up in individual organisms, while biomagnification is the process by which toxins are passed from one trophic level to the next (and thereby increase in concentration) within a food web.
Explanation:
Why do saturated fatty acids have straight structures, while unsaturated fatty acids have bent structures
Answers
Answer:
The answer is C
Explanation:
Saturated fatty acids have single carbon-to-carbon bonds.
Answer: saturated fatty acids have single carbon-to-carbon bonds
Explanation:
apex notes
True or False: High status people are calm, breathe deeply and move smoothly
Answers
Answer:
This is true
Explanation:
I NEED HELP!!!
how can you survive a very cold winter
Answers
Answer:
Prepare! Follow our winter survival kit checklist for tips on proper clothing, winter car kits, home supplies, and more.
Hypothermia and frostbite are the real dangers. Even in 50 F temperatures, you’re at risk of losing too much core and limb heat.
Protect your body heat. Protect it, trap it, and treat it like the precious resource it is.
Keep covered. Wind and exposure are the enemy. Exposed skin accelerates heat loss, especially through wind.
Dress in layers. The air trapped between each layer holds your body heat, like your own personal hot tub. Plus, layers give you better control over regulating body heat so you can avoid dangerous sweating.
Avoid sweating and stay dry. Besides moisture loss, sweating is bad because water on your skin makes you colder. That’s why we sweat to begin with — it’s the body’s air conditioning system.
Snow is an insulator. Don’t be afraid to use it for shelter.
Avoid eating snow. You lose a lot of core heat by melting snow inside your body. Melt it outside your body instead.
Alcohol does not warm you. Sorry, Russia!
Hydrate. Severe cold can be just as dangerous as severe heat. Stay hydrated.
Don’t travel unless you have to. Conserve energy. Stay where you’re most likely to be found. Especially if you’re in a nasty storm where navigation and shelter is difficult.
Explanation:
What structure in the female reproductive system produces eggs?
Vagina
Ovary
Fallopian tube
Cervix
Answers
Ovary structure in the female reproductive system produces eggs. Thus, the correct option is B.
What is female reproductive system?The uterus, fallopian tubes, ovaries, and the vagina are a woman's internal reproductive organs. The muscular, hollow tube known as the vagina connects the uterus to the vaginal opening. The muscular walls of the vagina allow it to expand and contract.
The primary roles of the female reproductive system are to produce eggs (ova) that can be fertilized and to create the environments and space necessary for a baby to grow. The female reproductive system also possesses the components required for a man's sperm to interact with a woman's ova in order for this to occur.
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In what respect is a mycelium and a fruiting body similar?.
Answers
Answer:
Both are made of hyphae
Explanation:
Does this help you????
HELP ASPA HELP!!!!Which of the following is an example of a structural adaption that an animal may develop if a habitat starts to have a slow decline in the amount of water available to drink?(1 point) If water slowly begins to become scarce, an animal may over time develop a way to store more water in its body. If water slowly begins to become scarce, an animal may over time develop a way to store more water in its body. If water slowly begins to become scarce, an animal may develop communication methods through a type of call that allows them to notify others of its species where water is located. If water slowly begins to become scarce, an animal may develop communication methods through a type of call that allows them to notify others of its species where water is located. If water slowly begins to become scarce, an animal may develop pack habits that allow them to spread out and locate water faster. If water slowly begins to become scarce, an animal may develop pack habits that allow them to spread out and locate water faster. If water slowly begins to become scarce, an animal may start migrating out of the environment to one that has more water. WILL GIVE 22 POINTS AND BRAINLIEST
Answers
Answer:
a
Explanation:
id water slowly begins to become scarce and animal over time develop a way to store more water in its body
HELP ASAP!!!!!! 3 SENTENCES PLEASE
what is the structure of proteins?
Answers
Answer:
It is convenient to describe protein structure in terms of 4 different aspects of covalent structure and folding patterns. The different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain.
Multiple monosaccharides joined together to form a chain are called
protein
polypeptide
nucleic acid
polysaccharide
Answers
Answer:
Polysaccharide
Explanation:
Model Develop a shortlist of systems that you think biologists would want to model. Choose one system from your list and develop a plan for how you would model it.
Answers
Answer:
The mathematical model
Explanation:
it is because they will model the airplane the way they solve difficult tasks in math
mountain lion vs grizzly bear. Who will win?
Answers
Answer:
I think a grizzly bear would win
Explanation:
what country had the highest gdp per capita in 2015?
Answers
Answer:
Qatar
Explanation:
none
Are the body systems interchangeable
Answers
Answer:
they are not inchachables
Question 5 of 10
Which will form an ionic bond?
A. Any two neutral atoms
B. Two oxygen atoms
C. Two oppositely-charged ions
D. Two negative ions
SUBMIT
Answers
Have a nice day :)
16. What force is needed to accelerate a 500 kg object at a rate of 10 m/s2?*
(3 Points)
Answers
Answer:
The second one
Explanation:
The formula to calculate force is:
F=m*a
So, 500 kg*10 m/s= 5000 N
The reason why it is not the last one is because we are looking for force, which is measured in Newton's.
I really hope this helps.
What is the mass of a bacterial cell in standard notation.
Answers
How are igneous rocks classified?
Answers
Answer:
Igneous rocks may be simply classified according to their chemical/mineral composition as felsic, intermediate, mafic, and ultramafic, and by texture or grain size.
Explanation:
Because im not an idiot jk becuase i just took a test on those.
The muscle in Lane's arm would best be described as which of the following?
An organ system
An organ
An organism
An organism
A tissue
Answers
Answer:
tisuee\
Explanation:
Why do the neuron and epithelial cell look so different?
They have a different function in the body.
A different section of DNA is activated in the nucleus.
They were created from different parent cells.
A different tissue results from a collection of each type of cell.
More time was spent creating the neuron.
Answers
Answer:
Nerve cell shapes vary according to the number, branching and disposition of their projections or dendrites, collectively known as arborization. This determines their capacity for interacting with their environment and with other nerve cells or neurons, hence their computational ability and roles.
Explanation:
Nerve cell shapes vary according to the number, branching and disposition of their projections or dendrites, collectively known as arborization. This determines their capacity for interacting with their environment and with other nerve cells or neurons, hence their computational ability and roles.
Multiple choice: Scientists use molecular ology to determine how two species are related by comparing the genes in one species to genes
A. in extinct species.
B. in human species.
C. in related species.
D. in related fossils.
Answers
Genes from fossils and extinct species may be too destroyed to look at and not all species are connected to the human gene.
This leaves only C available, plus, if the two species are related, looking at a species that may hold similar genes is best for this method.
The illustration shows a sequence of bases on one strand of a DNA molecule. Use the illustration below to answer the next three questions.
How many amino acids are coded for by the sequence on side A of this DNA strand?
What is the order of bases on side B, from left to right?
If G replaced A as the first base on side A, what would the order of bases be on side B of this DNA strand?
Answers
The diagram is lacking but the number of amino acids can be calculated by having into account that three nucleotides produce a codon. It is the genetic code.
What is the genetic code?The genetic code makes reference to the linear order of nucleotide bases in a given DNA strand.
This linear order is fundamental to produce a particular mRNA, which is used as a template during translation.
When occurs a substitution (mutation) of a nucleotide base for another in a DNA strand, then the genetic code can be used to determine the amino acid that will be added to this new codon.
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10. Friction is necessary when you are on a bike to stay _________.
Answers
Answer:
upright
Explanation:
In order to stay upright the bicycle has to experience friction.
The human heart and muscle cells require a great deal of energy. Which cell organelle would you expect to appear in large numbers?
Answers
Mitochondria
Explanation:
The mitochondria is known as the 'powerhouse of the cell' as it respires aerobically to produce energy for cells, including muscle cells. It is the mitochondria which produces energy in cells therefore, a lot of mitochondria is needed in the human heart and muscles.
Hope this helps!
Which structures provide evidence that these organism share a common ancestor and that evolution has taken place? Select the two correct answers. (1 point)
wing of a bat
tin of a fish
hoof of a horse
tail of a beaver
beak of a bird
Answers
Answer:
Wing of a bat
Hoof of a horse
Explanation:
Refer to the image..
Which complex is not involved in the establishment of conditions for atp synthesis?.
Answers
Answer:
photosystem II
Explanation:
Photosystem II (or water-plastoquinone oxidoreductase) is the first protein complex in the light-dependent reactions of oxygenic photosynthesis. It is located in the thylakoid membrane of plants, algae, and cyanobacteria.
wikipedia.
What is rna pleaseeee helpppp
Answers
Answer:
ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.
Explanation:
It’s an acid
And I THINK that it’s found in animals