brainliest will be given
Identify TWO molecules that are responsible for stem cells that all start out identical to form such very different types of cells.
Explanation:
The spatial organization of the cells that form a tissue is also central to the tissue's ... Stem cells typically have the capacity to mature into many different cell types. ... All these progeny cells have defined positions in the different organs
When early embryo are releasing chemicals to nearby cells to elicit protein production in the activated neighboring cells. What is the primary function of the signaling molecule?
a. facilitating cell death
b. initiating gene translation
c. regulating gene expression
d. stimulating cell division
Answer:
c. regulating gene expression
Explanation:
During development, early embryo cells release different ligand molecules that bind to specific receptors on the surface of nearby cells, thereby triggering signaling pathways involved in cell differentiation and development. These signaling events have been associated with the activation of transcription factors located in the cytoplasm which are then translocated into the nucleus where they activate the transcription of target genes. For example, sonic hedgehog (SHH) is a peptide hormone that plays roles during animal development. SHH is secreted by epithelial cells to activate transcription factors in nearby cells involved in several developmental processes.
How does a cell's external environment affect the movement of water across the cell membrane?
Answer:
water molecules move according to the energy from where they are to where they're going.
Explanation:
The external environment of the cell significantly affects the movement of water across the cell membrane when a cell is placed in three types of solution.
What is a cell membrane?A cell membrane may be defined as a type of biological membrane that significantly separates and protects the interior environment of all cells with respect to the outside environment. It is semi-permeable in nature which regulates the transport of materials entering and exiting the cell.
If a cell is placed in a hypertonic solution, water will migrate out of the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
Therefore, the external environment of the cell significantly affects the movement of water across the cell membrane when a cell is placed in three types of solution.
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A scientist wants to make a geologic column of rock layers from different parts of a state. Which claim explains how the scientist will do this?
A. The scientist will organize the layers by comparing the fossils and types of rocks.
B. The scientist will measure the exact ages of the rocks found in each part of the state.
C. The scientists will look at the surface features in each area to organize the layers.
D.The scientist will select one area in the state and use only those layers to construct the geologic column.
Answer:
A. The scientist will organize the layers by comparing the fossils and types of rocks.
Explanation:
A geologic column can be defined as a collection of rock layers that are typically grouped based on their relative ages in a descending order i.e from oldest to the youngest.
Generally, the layers of the rock that are found in various parts of the world are known to be different because they all comprises of distinct Earth's geological history.
In this scenario, a scientist wants to make a geologic column of rock layers from different parts of a state. Thus, the claim which best explains how the scientist will do this is that, the scientist will organize the layers by comparing the fossils and types of rocks.
Hence, the scientist will collect or gather the fossils obtained from various rocks located in different parts of the state and make a comparison.
Allowing clients to view their pets during (. )
isn't considered standard of care.
Answer: Surgical procedures
Explanation:
Clients should not be allowed to view their pets during surgical procedures because they may reacting a negative way to seeing their pets being operated on.
It is therefore not considered a standard of care for this to happen and is the reason clients should not see what happened to their pets whilst they were being operated upon.
What are three things that affect an enzymes activity
Answer:
oofooooooofofofo29u4844
Answer:
Factor 1: Concentration of Enzyme
Factor 2: Concentration of Substrate
Factor 3: Effect of Temperature
what does heat flow inside Earth move the tectonic plates?
The four types of macromolecules in cells are nucleic_________
lipids, proteins, and_____
The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.
What is the shape of a DNA molecule? Why is your model not 100% accurate as to the
'shape
Answer:
What is the shape of a DNA molecule?
The shape is like a twisted ladder
Why is your model not 100% accurate as to the 'shape?'
No two Dna molecules are the same.
I hope this helps!
How to get BA/BE Services from reliable suppliers?
Bioavailability (BA) refers to the degree and rate at which the administered drug is absorbed by the circulatory system, thereby accessing the sites of action. BA is one of the essential tools in drug development, since it must be considered when calculating dosages for non-intravenous routes of administration based on absorption.
https://dda.creative-bioarray.com/bioavailability-bioequivalence-ba-be.html
Answer:
hello darling how are you
Name three fluids that are essential to life. Cite evidence from this section to justify your answer.
Answer:
water:to stay alive
semen:to reproduce
sweat:without we would get heat strokes easier
Answer:
Blood, Saliva, Bile
Explanation:
blood, which functions to transport oxygen to cells, carry metabolic waste products such as carbon dioxide away from cells and transport infection-fighting white blood cells, glucose, hormones and other essential substances throughout the body. Blood also contains cell fragments called platelets and clotting factors that help to seal leaks that may develop in blood vessels.
Saliva is secreted by salivary glands in and around the mouth saliva contains antibacterial enzymes and antibodies, as well as mucus itself. Saliva helps to moisten food, which is important to lubricate chewing and swallowing. It also enhances taste, because if the chemicals in food were not in a liquid medium, they could not be detected by taste receptors.
Bile is a brown to dark green fluid that is produced by the liver, stored in the gallbladder (a synonym for bile is gall), and released into the intestines when we eat. It is partly responsible for the color of vomitus and stool. Its most important ingredient is bile salts, which function like soap to break down dietary fats, enabling them and fat-soluble vitamins such as A, D and E to be absorbed. They also help to prevent the cholesterol-containing bile in the gallbladder from forming gallstones.
why are important to use unites measurement that are the same for everyone?
Answer:
Everyone in some field of study uses SI, or uses USCS, and the units are obvious. ... The measurement only makes sense when the standard unit being compared is noted. CALCULATING. As important as it is to note units when measuring, it is ten times as crucial to use units in calculating.
Explanation:
Hope it helps :)
Answer:
Everyone in some field of study uses SI, or uses USCS, and the units are obvious.The measurement only makes sense when the standard unit being compared is noted. As important as it is to note units when measuring, it is ten times as crucial to use units in calculating.
Hope this helps:) Happy New Year!
What comes first in the process of cell division?
A. Chromatids line up in the center of the cell
B. Chromatids are pulled apart
C. Chromatids are duplicated
D. Cell splits in two
Answer:
C) Chromatids are duplicated
Explanation:
A is during Metaphase
B is during Anaphase
C is during S Phase (The pre-phase is you will)
D is during Telophase
Choose true or false for each statement listed below.1. The most prevalent alleles in a population are called wild type alleles
Answer:
The statement is true.
Explanation:
The wild type allele or wild allele of a gene refers to the allele that predominates in the general population, that is, the most frequent allele that is arbitrarily designated as normal is often called the wild type allele (dominant but not always), these they are responsible for the wild type phenotype and are used as a standard to compare other mutations that occur at a particular locus. A mutant allele has modified genetic information often specifying an altered gene product.
Answer:
TRUE
Explanation:
Which two characteristics are shared by all thunderstorms, tornados, and huricanes?
O clouds and wind
O eyes and clouds
O warm, dry air and wind
O large waves and warm, dry air
The two characteristics that are shared by all thunderstorms, tornadoes, and hurricanes are: clouds and wind. The correct option is A.
What are the characteristics of thunderstorms, tornados, and hurricanes?Thunderstorms, tornadoes, and hurricanes are all types of severe weather conditions. They are called severe weather conditions because they can cause a lot of damage to property and people's lives. They are all characterized by strong winds and clouds.
Thunderstorms are storms that have thunder and lightning. They are caused by warm air that rises and cools, creating thunderstorm clouds. They are usually accompanied by heavy rain, gusty winds, and lightning.
Tornadoes, on the other hand, are funnel-shaped clouds that touch the ground. They are usually created by thunderstorms. They are characterized by strong, rotating winds that can cause a lot of damage to structures and vegetation.
Hurricanes are large, tropical cyclones that have low-pressure centers. They are usually formed over warm ocean waters and are accompanied by strong winds, heavy rain, and flooding. They can cause a lot of damage to coastal regions and people's lives.
Therefore, the correct option is A.
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A strand of DNA was unwound and analyzed. If the nitrogen bases of the strand were A-T-C-G-G-A, what was the sequence of nitrogen bases on the other strand? Explain.
Answer:
U-A-G-C-C-U because the other strand is always the opposite so if it's G then it will be C and that goes backwards too and for T it's A but u can't put T on the other strand so u substitute it for U
and sorry the explanation is not perfect :)
Describe the path of a nitrogen atom through four parts of the nitrogen cycle. Be sure to explain the processes involved in the transfers. Note when a form of nitrogen is available to plants.
Answer:
Explanation:
Nitrogen cycle consists of four main steps namely:
Nitrogen Fixation.
Ammonification/ Decay.
Nitrification.
De-nitrification.
Why might farmers and herders have selectively bred their animals and plants?
Answer:
Farmers and herders can derive a surplus of animals and plants with desireable traits. (ex: larger crops, bigger animals, sweeter fruits etc.)
Explanation:
By selectively breeding animals (breeding those with desirable traits), farmers increased the size and productivity of their livestock. Same thing goes for plants. Farmers can selectively breed them so they can become more favorable for their consumers.
Hope that helps!
would an electron have to absorb or release energy to jump from the second energy level to the third energy level
Answer:
IT HAS TO RELEASE ENERGY
Explanation:
where do stem cells transform to T cells
Answer: Mooney, Scadden and their team focused on the bone marrow, which is the home of the blood stem cells, and devised a method to expand the cells that migrate to the thymus to eventually give rise to new T-cells. These cells, known as common lymphoid progenitors, are made in the bone marrow.
Explanation:
All agents of weathering can be divided into which two main groups?
A.
physical and biological
B.
energy and matter
C.
mechanical and chemical
D.
wind and water
Answer:
C.
Explanation:
Mechanical and Chemical
HURRY HELP !!
TOPEX/Poseidon:
was a joint effort between the U.S. and France
tracked changes in the height of the sea level
helped meteorologists predict the path of La Niña
all of the above
Answer: All of the Above
Explanation:
TOPEX/ Poseidon was a joint effort between the USA's NASA and France's CNES from 1992 to 2006 that used satellite technology to study the changes in the ocean's topography and height.
It was hailed for its wide success as it was able to find data to explain various phenomenon that scientists had been trying to explain for a while including how to predict the path of La Nina.
Answer:
all of the above
Explanation:
I got it right on my lesson:)
plz mark me brainliest :)
A type O woman marries a man with type B blood, given that both of their mothers were type O, predict their possible offspring.
Answer:
For a woman with type O blood and a man with type B blood, whose mother was of type O blood, the possible offspring will consist of B and O children.
Explanation:
Blood type is an inherited trait and is determined by the presence or absence of antigens A and B on the surface of the erythrocyte:
Blood type A contains the antigen A and its genotype can be A|A or A|O. Blood type B contains the antigen B, whose genotype may be B|B or B|O. Blood type AB contains both antigens and a single genotype expression A|B. Blood type O lacks surface antigens, with a unique O|O genotype.In the above case, the woman has an O blood type, whose genotype is O|O. The male must be heterozygous, since his mother was of blood type O, so his genotype is B|O.
♂ B|O ♀ O|OTo know the possible descendants of this couple, the crossing of the wolf alleles must be done:
Alleles B O
O B|O O|O
O B|O O|O
From where the probabilities of the offspring are obtained:
Individuals with blood type B and genotype B|O 50% Individuals with blood type O and genotype O|O 50%Therefore, from this crossing only descendants of individuals with blood type B and O can be obtained.
Please HELP ! :(
3.4.4 Why are cells so small?
1. Write a brief summary of the main steps you took in the procedure. Be sure to describe any adjustments you made to the procedure and why you made them.
Cells are small because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. ... When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume.
Hope this helps!
During photosynthesis, specific pigments absorb light energy, which is then used to fuel the building of sugar molecules. Which colors correspond to the wavelengths of light that are strongly absorbed by each pigment
Answer:
Chlorophyll a- violet blue
Chlorophyll b - orange red
Carotenoids- green yellow
Explanation:
The three major plant pigments are chlorophyll a, chlorophyll b and carotenoids.
Various pigments are identified by their specific pattern of wavelength absorption in the spectrum of visible light. Chlorophyll a absorbs light in the violet-blue region, while chlorophyll b absorbs orange-red light. Chlorophyll a and b reflects or transmits green light hence they appear green. Carotenoids absorb light in the green - yellow region hence they reflect longer yellow, red, and orange light.
The gravitational pull of the moon is much less than the gravitational pull of earth
with two statements are true for an object with the mass of 20 kilograms the weigh 44 pounds on earth?
A. The objects mass would be the same o the moon.
B. The objects mass would be less on the moon.
C. The objects weight would be the same on the moon.
D. The objects weight would be less on the moon.
Answer:
The object's weight would be less on the moon.
The Object's mass would be the same on the moon
Which of the following is the correcto definitivo of eléctricas energy?
Answer:
Electrical energy is energy derived from electric potential energy or kinetic energy. ... Thus, all electrical energy is potential energy before it is delivered to the end-use. Once converted from potential energy, electrical energy can always be called another type of energy (heat, light, motion, etc.).
What factors cause the breakdown of rocks into soil that can support life?
Answer:
Temperature of the surrounding.
Ecosystem-based management represents a paradigm-shift in the way we manage natural resources in the U.S.
1. What are some potential roadblocks to EBM at the policy level?
2. At the constituent level?
3. How would you suggest a way forward?
Answer:
1. The need for an appropriate management unit, creation of administrative bodies and the poor knowledge of the ecosystem function and time constraints.
2. Limited resources to implement the projects with little existing knowledge of the system. It is vague in concept and ignores the historic and individual factors that might influence the ecosystem functionality.
3. There must be an established communication with the management and adaptive management should be adopted to counter the unpredictable nature of the ecosystem.
Explanation:
Ecosystem-based management is an environmental approach to analyze the interaction between species and their environment. It studies the terrestrial and marine species and environment and factors within these environments that cause behavioral change and migration.