What embyonic germ layer gives rise to liver?

Answers

Answer 1

Among the three germ layers, the endoderm (the most internal layer) is the one that gives rise to liver.

What is the endoderm?

Three embryonic layers are present in the blastoderm after segmentation. One of them is the endoderm, which is located in the interior most region of the embryo.

The endoderm is in charge of producing the Yolk sac, digestive and respiratory systems. It is involved in the formation of the thyroid glands, the thymus, pancreas, organs like the liver, and the structures are responsible for the urination.  

The endoderm is the germ layer that gives rise to liver.

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Related Questions

In the Exploration, the color of the bugs evolves over the course of a few generations. Give another real world example which can support Darwin’s theory.

Answers

Dog with the good smell survive in the environment as compared to bad smell.

What is another example that supports Darwin's theory?

Another example of Darwinian theory is that if dogs that have a good sense of smell are better able to survive as compared to dogs without a good sense of smell. So those dogs that have this ability increase in number because those with a bad sense of smell die out.

So we can conclude that dog with the good smell survive in the environment as compared to bad smell.

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EASYYY IM TIRED, IVE BEEN ON 2 REDBULLS TRNA STAY AWAKE DOING HW. I NEED HELP WITH THIS ONE QUESTION SO I CAN GTS!!!!
What would happen if you decreased the amount of light available to the model biosphere?

Answers

Answer:

the Vajpayee is a term that ecompasses all the ecosystem from the Earth it there for increase both non living elements like sunlight and water and leaving organisms

Explanation:

hope it is helpful

Answer:

Explanation:

: There's only one stable, long-lasting biosphere that we know of. It's the Earth. It shouldn't surprise you that human attempts to create sealed systems don't generally fare very well. The International Space Station, despite efforts to recycle everything possible (including converting urine to drinkable water--do you still want to be an astronaut?) to reduce costs, couldn't sustain life for long without a steady supply of provisions from, and garbage hauling back to, Earth. You know they try hard because, if all goes as planned, it costs about $10,000 to put a pound of payload (supplies) into Earth orbit. The BioSphere 2 project in Southern Arizona was an interesting and costly effort, but the original studies weren't very scientific and it proved quite difficult to keep just a handful of humans alive for a relatively short period of time. You can buy tiny sealed marine ecosystems enclosed in glass. They are beautiful curiosities, but the one I bought for my wife lasted less than a year before crashing. Among the crazier justifications for space exploration is that when (note the assumption of inevitability) we ruin the Earth, we will need new places to live (and, presumably, ruin). Unless or until we can do a lot better at building self-contained ecosystems, it would be a far better use of human effort to focus on preserving the only one we've got. Not only that but, if we make the Earth uninhabitable, I'm not sure we deserve to live somewhere else. But the challenge itself is interesting, and the scientific questions you can ask in the process of understanding, building, and trying to maintain such a system are valid. We're going to give it a try. Good luck! There's a Nobel Prize in it.

Summation that results from the cumulative effect of multiple synapses at multiple places on the neuron is designated.

Answers

Summation that results from the cumulative effect of multiple synapses at multiple places on the neuron is designated spatial summation.

A strategy for generating an action potential in a neuron using input from several presynaptic cells is called spatial summation. It is the algebraic addition of potentials from various input regions, typically dendrites.This process, known as spatial summation, occurs when inputs from several neurons combine to cause an action potential. These potentials, which are often from dendrites, are combined to produce the spatial summation.The likelihood that a potential will reach the threshold level required to trigger an action potential increases with the amount of excitatory postsynaptic potentials. Similar to this, the likelihood of attaining the threshold potential to trigger an action potential decreases as the number of inhibitory postsynaptic potentials increases.

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5 things unique to photosynthesis

Answers

5 things unique to photosynthesis are:

All living things depend on the organic molecules that are synthesized by plants as a result of photosynthesis.Photosynthesis is not unique to plants. Other organisms are also capable of photosynthesis.Photosynthesis is dependent on the presence of the pigment chlorophyll.In photosynthesis, light energy is converted into chemical bond energy.Photosynthesis occurs in the daytime.

What is the co-factor during photosynthesis?

The co-factor during photosynthesis is  Nicotinamide Adenine Dinucleotide Phosphate.(NADP), and not NAD. The latter is a coenzyme in respiration  for ferrying H+(as NADH+) together with FADH+ from Kreb's Cycle into the matrix of mitochondria for oxidative phosphorylation, needed  for ATPs synthesis,

Thus, this could be the answer.

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What happened if the temperature was too high for enzymes

Answers

If the temperature was too high for enzymes they would be denatured which is why they have optimum temperature they work with.

What is Denaturation?

This occurs when the structure of a protein is modified as a result of various factors.

Such factors include high temperature which results in the structure being changed and leads to the enzyme losing some properties needed for action.

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Which of the following phrases can be used to describe the genotype Ee?
A. Homozygous dominant
B. Heterozygous recessive
C. Heterozygous dominant
D. Homozygous recessive​

Answers

Answer:

C

Explanation:

one letter big and one small

the first letter is capital

How does water move from the biosphere to the atmosphere in the water cycle

Answers

Answer:

The water cycle depicts the ongoing circulation of water inside the Earth and atmosphere. It is a complicated structure with several functions. Water vapor evaporates from liquid water, compresses to create clouds, and falls back to earth as rain and snow.

Explanation:

The water cycle is a cyclical process in which water circulates between the earth's atmosphere, seas, and surface via precipitation, drainage in lakes and rivers, and return to the earth's atmosphere by absorption and evaporation. Throughout respiration, organisms exhale carbon dioxide and water vapor, which evaporates back into the atmosphere.


17. When transcription occurs in eukaryotic cells, a DNA strand is copied to an mRNA strand that contains introns and exons. Which of the two is needed for the
production of proteins, and why?
Exons because they are coding sequences.
Introns because they are non-coding sequences.
Introns because they are coding sequences.
Exons because they are non-coding sequences

Answers

Answer:

Exons because they are coding sequences

Explanation:

The sections of DNA (or RNA) that code for proteins are called exons.

A student drew this model to show the gas exchange in the human body.


a diagram of the transport of oxygen and carbon dioxide around the body in the blood, from the lungs to the organs and again to the lungs

What are the strengths of the model the student created?

Answers

Answer:

gases

Explanation:

one strength would be that the graph clearly shows the gases and pathway of the gases which are taken in and used in exhalation.

Susan makes a claim that humans do not evolve because we adapt to situations by changing our technology, not ourselves. which piece of evidence contradicts this idea? humans have been using tools for a long time. other primates also use tools. the size of our brains has increased since humans started using tools. our technology is always increasing.

Answers

The correct answer is option C.

The size of our brains has increased since we became tools users.

Researchers have proved that using modern technology gadgets not only modifies our brain functioning, but also stimulates our brain to make it more active.

Humans do not evolve because we adapt to situations by changing our technology, not ourselves.

PLEASE HELP MEEE WITH THIS QUESTION

Answers

Answer:

2)  6) 3) 4)

Explanation:

The following factors will affect the current oxygen and carbon dioxide levels.

Burning fossil fuels increases the output of CO2 outside of organisms that perform cellular respiration-CO2 is a green house gas and is a cause of global warming. burning fossil fuels will increase CO2 in the atmosphere which cannot be balanced by the natural sinks like forests and oceans.Deforestation reduces the number of photosynthetic organisms able to produce oxygen and consume carbon dioxide. Deforestation causes habitat loss and hence a large amount of tree cover is lost which will reduce the amount of oxygen generated and CO2 absorbed.When land is deforested for agriculture, the photosynthetic productivity of crops is not equivalent to the forests being replaced. This is so because forests have large trees and plants which have a greater photosynthesis capacity however new crops which are small and are removed annually are not able to compensate for the loss of large forest trees.

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Comparable segments of the mitochondrial DNA sequences of two similar species are shown below. This segment of DNA mutates at a rate of two base pair per 330,000. years. The DNA sequences for Species A is CTGTCCGAAG and Species B is CTGTCCGTCG. How many years ago did these species diverge from a common ancestor? 660,000 years ago
33 years ago
330,000 years ago
6,000 years ago

Answers

The homo-logous mitochondrial sequences CTGTCCGAAG and CTGTCCGTCG suggest that species diverge from a common ancestor 660,000 years ago.

What is the mutation rate?

The mutation rate indicates the number of nucleotide differences between two homo-logous sequences that emerged in evolution in a given period of time.

In this case, the mutation rate is one nucleotide per 330,000 years and here we have two mutations (CTGTCCGAAG and CTGTCCGTCG), thereby it is expected that the sequences diverged 660,000 years ago.

In conclusion, the homo-logous mitochondrial sequences CTGTCCGAAG and CTGTCCGTCG suggest that species diverge from a common ancestor 660,000 years ago.

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When do we use a fluorescence microscope?

Answers

A fluorescence microscope is used when one wants to image specific features of small specimens such as microbes.

What is a fluorescence microscope?

A microscope that uses fluorescence to form an image.

Fluorescence microscopy has wide applications due to its high sensitivity, specificity and simplicity. It can be applied to living cells and organisms.

Fluorescence microscopy is used to view the features of small specimens such as microorganisms.

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What is cladistics?
OA. The comparison of species based on common behavioral
characteristics
B. The comparison of species based on their geographic range
C. The comparison of species based on the presence or absence of
ancestral traits
D. The comparison of species based on common physical
characteristics

Answers

The comparison of species based on common physical characteristics Thus, the correct option is D.

What is cladistics?

Cladistics is a method of biological taxonomy that organizes taxa in a branching hierarchy so that all members of a given taxon share the same ancestors and defines taxa uniquely by shared traits not present in ancestral groupings.

Clades, which are collections of organisms made up of an ancestor species and its offspring, are also identified through cladistics.

A cladogram only displays one probable phylogeny for a collection of organisms. It can shed light on the process of evolution. A cladogram should not be viewed as a representation of genuine evolutionary processes, though. It may or may not depict what actually occurred. It merely illustrates what might have occurred.

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a nucleus can be found in which type of cell?

a. prokaryotic cells
b. eukaryotic cells
c. all cells.

Answers

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: b. Eukaryotic \:\: cells[/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

Nucleus is only found in developed cells (eukaryotic cells), because they have well differentiated cell organelles and are mich developed.

where as, prokaryotic cells are primitive cells that have no distinguished organelles and many organelles aren't even present. they have genetic materials spread over in cytoplasm.

Hence, we can conclude that Nucleus can only be found in eukaryotic cells.

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Answer:

b. eukaryotic cells

Cell theory states that all living things contain one or more cells. why do you think chill theory meets the definition of a scientific theory? Do you think it should be a scientific law? Explain your response.

Answers

The cell theory meets the definition of a scientific theory, yes because the scientific theory refers to the well-proven explanation of aspects of the natural world.

What does the cell theory claim?

Cell theory states that all living things are composed of cells, the basic structural and organizational unit of all organisms, and that all cells come from pre-existing cells.

The cell theory is a scientific theory because it managed not only to theorize but also to prove in a way that supports the arguments of a scientific theory. When a theory can be proved in general, it becomes a law, so yes it could be a law.

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Why was natural selection an important contribution to the theory of evolution?
OIt proved that evolution is true.
OIt explained how evolution works.
OIt summarized the process of evolution.
It highlighted the main points of evolution.

Answers

OIt summarized the process of evolution.

Which are the only two photic zones in the ocean?
a. Epipelagic and Abyssopelagic
b. Mesopelagic and Epipelagic
c. Epipelagic and Bathypelagic
d. Abyssopelagic and Bathypelagic​

Answers

Part b is the answer- Mesopelagic and Epipelagic

Answer: d. Abyssopelagic and Bathypelagic​

Perspective influences how a person looks at a piece of art and its qualities.
a.
always true
c.
always false
b.
sometimes true
d.
Perspective is not relevant in the interpretation of art.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

D.

Explanation:

d.

Perspective is not relevant in the interpretation of art.

What term describes a plant's response to external stimuli like light, gravity, and touch?

Answers

According to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.

What is a tropism?

It is the response that plants or certain organs of them make to a stimulus that comes from the outside.

There are different classes of tropisms according to the nature of the stimulus, gravitropism, phototropism, heliotropism among others.

Therefore, we can conclude that according to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.

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The same DNA strand is analyzed in four species of fish. Two species have more identical nucleotides than the others.

What does this mean?

A.They look more similar in appearance.
B.They are more closely related.
C. They do not share a common ancestor.
D. They are less closely related.

Answers

Answer:

It means that they are closely related.

Explanation:

Where is the nucleus located in a neuron ?

Answers

The nucleus located in a neuron It is located in the cell body.

Which part of the neuron is its nucleus located?

Neurons have as basic parts the cell body, dendrites and axon. Cell body: The cell body is the region where the nucleus of the neuron is located, as well as most of its organelles.

in this case, the cell body, or perikaryon, is the portion of the neuron that contains the nucleus and the cytoplasm that surrounds the nucleus.

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Why is there competition in nature?
A. Living organisms are influenced by abiotic factors.
B. Ecosystems are composed of habitats and communities.
C. There are more living things than there are resources to support them.
D. Environments are constantly changing as organisms interact.

Answers

Answer:

c

Explanation:

Competition exists in nature due to the limited availability of resources compared to the abundance of living organisms. This creates a struggle for survival and dominance among species, leading to an ongoing process of natural selection. Thus, correct option is C.

Because there are more living things than there are resources to support them, competition is a natural phenomenon. There is a limited supply of food, water, shelter, and other survival-related essentials in the Earth's ecosystems. As a result, in order to meet their demands and ensure their survival, organisms must contend for these scarce resources.

This rivalry is essential to the process of natural selection because it increases the likelihood that organisms with beneficial characteristics or adaptations will survive and pass on their genes to the following generation. Because only those with the strongest adaptations flourish in a certain habitat, this eventually drives the evolution and specialization of species.

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Why is acetylcholine broken down?

Answers

Acetylcholine broken down is the process by which this neurotransmitter activates a suitable ligand-receptor to trigger a cell signaling pathway.

What is Acetylcholine?

Acetylcholine is a chemical messenger (i.e., a neurotransmitter) that is used to transmit signals inside the body.

Acetylcholine broken down is due to its hydrolysis, which ends cell signaling between brain synapses.

In conclusion, Acetylcholine broken down is the process by which this neurotransmitter activates a suitable ligand-receptor to trigger a cell signaling pathway.

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What must occur for protein translation to begin?
O Awater molecule must be added to the
protein chain.
A peptide bond must form between subunits of mRNA
The amino acid Cys must be picked up by tRNA.
The codon AUG must be identified.

Answers

Answer:

D.

Explanation:

AUG is the start codon

Why some plants like a citrus plants bear thorn ?​

Answers

I don’t understand the question but if I can make a correct inference, they have thorns to protect themselves from predators.

A patient is being treated by her urologist for a fourth episode of kidney stones. Analysis of the stones shows that they are composed of calcium oxalate. The urologist orders an assay of which hormone?.

Answers

Answer:

Parathyroid hormone (PTH)

The urologist orders an assay of PTH hormone.

What is PTH hormone?

Parathyroid glands release a hormone called parathyroid hormone (PTH) that regulates the amount of calcium in your blood. It also regulates the amounts of vitamin D and phosphorus.

Parathyroid hormone over- or under-production might result in symptoms linked to abnormal blood calcium levels.

Parathyroid glands produce and release a hormone called parathyroid hormone (PTH) to regulate the amount of calcium in your blood, not in your bones. One of the most crucial and prevalent minerals in your body is calcium.

Therefore, The urologist orders an assay of PTH hormone.

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The effects of molecules other than substrate on allosteric enzymes are called

Answers

The heterotropic effect is the effect of molecules other than substrate on allosteric enzymes.

What is the heterotropic effect?

The term "allosteric enzymes," which derives from the Greek "allo," which means "other," refers to enzymes that have a second site in addition to the active site. Enzymes can have many allosteric sites, which are these. They stand out because they can react to many circumstances in their immediate surroundings.Unrelated to the enzyme's substrate, a regulatory molecule is referred to as a heterotropic allosteric effector. The enzyme binds to can either be activated or inhibited by it.Carbon dioxide ([tex]CO 2[/tex]) is an excellent example of a heterotropic allosteric effector because it also functions as an effector of hemoglobin but is not an enzyme-substrate.

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If a wire carrying an electric current is placed in a magnetic field, a force is produced. What name is given to this effect?

Answers

Answer:

The Motor Effect

Explanation:

:)

Answer:

The Motor Effect

Which item is a carbon source?
OA. Burning of fossil fuels
OB. Fossil-fuel deposits
O C. Limestone rock formations
OD. Replanting of rain forests

Answers

Answer:

A

Explanation:

Burning of fossil fuels

A: burning of fossil fuels; this is because burning fossil fuels leads to carbon emissions in the air
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which of the following travels the fastest A golfer wishes to chip a shot into the hole 50m away on flat level ground. if the ball flies to a maximum height of 25m, what speed must it have initially to reach the hole? it's grade 11 physics, so the more equations the better, thanks :d Write the synonyms of:1.Apartment2.professer3.cab4.candy5.sneakers6.Flashlight7.Faucet I will never forget my first day at soccer practice.What is the main (action) verb in this sentence?A: forgetB: practice C:dayD: I 7. Which word has the strongest connotations?scamperedskippedranmoved Define profession for 8 grade The Royal Fruit Company produces two types of fruit drinks. The first type is 35% pure fruit juice, and the second type is 60% pure fruit juice. The company is attempting to produce a fruit drink that contains 45% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 40 pints of a mixture that is 45% pure fruit juice? erythromycin eye ointment was prescribed for mr. jones with a sig of apply inch ribbon to lower eye lid qhs. what does qhs stand for? Which Indian mathematician and astronomer wrote that Earth was a rotating sphere? Geranium plants will freeze if planted too early. This is an example of the influence of a. light. b. minerals. c. water. d. soil. e. temperature. description of a concrete walkways. Antonio and his two brothers equally shared the cost of a new CD with a list price of $18. Theyreceived a 20% discount off the list price and paid 8.25% sales tax on the discounted price.Find the approximate amount that each of the 3 brothers paid toward the cost of the CD.A. $4.80B. $5.20C. $6.50D. $15.59 I cannot crack this one, somebody please assist me MATH: Composition of two functions...help needed with this problem Which excerpt from Annabel Lee provides the best evidence to support the conclusion that Annabel Lee was loyal? Which numbers are the extremes of the proportion shown below?3-604=8A. 3 and 8B. 3 and 6C. 4 and 6D. 4 and 8 During the production era it was believed that one should produce as much as you can, because: Review the graph. Given z = , which letter represents z3?ABCD Pick each reason that speakers use rhetorical devices:A:to help them influence their audience B:to emphasize important points C:to make a speech longer and seem more formalD:to help audience remember statistics or evidence related to the messageE:to ask the audience to determine the message of the speech on their ownF:to clarify information or important pointsG:to present information creatively and keep audience interested An event manager recorded the number of people in different age groups who attended a music concert:A histogram titled Concert Audience is shown. The horizontal axis is labeled Age Group in years with bins 18 to 24, 25 to 31, 32 to 38, and 39 to 45. The vertical axis labeled Number of People with values from 0 to 120 at intervals of 20. The first bin goes to 80, the second goes to 120, the third goes to 40, and the last goes to 20.Which data table accurately represents the data in the histogram?A:Age Group Number of People1824 802531 1203238 403945 20B:Age Group Number of People1824 802531 2003238 2403945 260C:Age Group Number of People1824 202531 403238 1203945 80D:Age Group Number of People1824 2602531 2403238 2003945 80