At high altitudes, air is less dense than at sea level because of decreased air pressure. This means that a person who ascends to high altitudes takes in fewer oxygen molecules per breath. Describe and explain an immediate response that occurs in the circulatory system when a person first reaches high altitudes. Use vocabulary from class.
An immediate response that occurs in the circulatory system when a person first reaches high altitudes is that the heart beats faster to meet the demand for oxygen that the body needs.
What are the main effects of altitude?The higher it is, the worse the symptoms, which include
headacheshortness of breathrapid heartbeatamong othersNot everyone has these symptoms when they go to high-altitude places, but it is also not possible to know who will or will not feel something.
With this information, we can conclude that An immediate response that occurs in the circulatory system when a person first reaches high altitudes is that the heart beats faster to meet the demand for oxygen that the body needs.
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Earth's core is the source of the energy that drives the movement of tectonic plates. Which two processes help transfer this energy outward to earth's crust?
Answer:The two processes are CONDUCTION and CONVECTION
Explanation:
The Energy produced in the Earth core is generated by Sun, gravitational force , radioactive decay, and the Earth' rotation, To maintain balance in the earth, The processes of CONDUCTION and CONVECTION transfer energy (HEAT) to Earth's interior, which also helps the movement of tectonic plates at a constant rate.
Now, inside the earth mantle is made up of hot solid rock and because Conduction occurs more in solids, Its currents helps the continuous transfer of heat energy from the warmer mantle at the bottom to the cooler mantle at the top While Convection currents in the core move thermal energy causing the rising and sinking of warm and cooler molten rock inside Earth, thereby maintaining the motion of tectonic plates and creating a balance in the earth.
Answer:
Conduction and Convection
Explanation:
Explain why flask #2 (yeast with glucose) produced more CO2 than flask #5 (yeast with flour). AND how did you know it produced more CO2?
Answer: Glucose
Explanation:
The carbon dioxide produced in the experiment can be directly related to the energy generated after the fermentation process. The carbon dioxide is the byproduct of the chemical reactions in the ethanolic fermentation. Glucose substrate will yield the highest energy along with the highest producer of the carbon dioxide after the fermentation process conducted by yeast as compared to the fermentation process that was conducted by yeast with flour. The flour will offer a source of carbohydrates including starch and sugars. The yeast will find out sugar in the flour and ferment it. Glucose is readily available sugar for the action of yeast so more production of carbon dioxide is expected from glucose substrate.
Thyroxine does not act on a specific organ
Answer:
Thyroxine is a hormone the thyroid gland secretes into the bloodstream. Once in the bloodstream, thyroxine travels to the organs, like the liver and kidneys.
Explanation:
In the space below, summarize the process of sexual reproduction in unicorns to explain how offspring are produced. Include and highlight the following terms in your summary: Diploid, Fertilization, Gametes, Haploid, Interphase, Meiosis
Answer:Sexual reproduction allows some of the genetic information from each parent to mix, producing offspring that resemble their parents but are not identical to them. In this way, sexual reproduction leads to variety in the offspring. Animals and plants can reproduce using sexual reproduction.
During a hot July day, Brian and his friends play football outside. After a while, they are covered in sweat. Brian comments that sweat is just your body’s way of cooling itself. Which systems are involved in your body attempting to maintain homeostasis during high temperatures?
a. Your nervous system sends signals to your muscular system.
b. Your circulatory system gives blood to your respiratory system.
c. Your muscular system attempts to cool your skin through radiation.
d. Your excretory system attempts to cool your skin through evaporation.
Answer: B is correct I had this question too!
Similarly, the cardiovascular, integumentary (pores and skin and related structures), respiratory, and muscular structures paintings collectively assist the frame preserves a strong inner temperature. If frame temperature rises, blood vessels withinside the pores and skin dilate, permitting extra blood to waft close to the pores and skin's surface.
The temperature in the frame varies; in a frame in homeostasis (regular fitness state), the 'core' temperature is maintained inside quite a number 36-37.5.
What is Homeostasis?Homeostasis via way of means of contracting to show chemical electricity into thermal electricity if the frame is cold, it additionally facilitates to preserve homeostasis via way of means of contracting extra or much less frequently so oxygen can get to all cells from the heart.
Thus it is clear that systems are involved in your body attempting to maintain homeostasis during high temperatures your muscular system attempts to cool your skin through radiation.
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How does a fire help grasslands?
Choose all that apply
Answer:
In most grassland ecosystems, fire is the primary mode of decomposition
Explanation:
Grasslands burn more readily than forest and shrub ecosystems, with the fire moving through the stems and leaves of herbaceous plants and only lightly heating the underlying soil, even in cases of high intensity. In most grassland ecosystems, fire is the primary mode of decomposition, making it crucial in the recycling of nutrients. In some grassland systems, fire only became the primary mode of decomposition after the disappearance of large migratory herds of browsing or grazing megafauna driven by predator pressure. In the absence of functional communities of large migratory herds of herbivorous megafauna and attendant predators, overuse of fire to maintain grassland ecosystems may lead to excessive oxidation, loss of carbon, and desertification in susceptible climates. Some grassland ecosystems respond poorly to fire.
A fire helps grasslands through the following:
Keeps trees from overtaking the grasses.Preserve biodiversity.What is Fire?This is the visible aspect of combustion of fuel and other materials to produce heat and flame.
controlled burning increases biodiversity by increasing spatial and temporal variation and helps prevent trees from overtaking grasses.
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FOODS HIGH IN PROTEIN RELEASES ENERGY
A. FAST
B. QUICKLY
C. SLOWLY
Answer:
quickly
Explanation:
Answer:
SLOWLY
Explanation:
fill in the blanks to complete the concept map for the process of translation
Answer:RNA code for Amino Acids that make Proteins through the process of translation
Explanation:
During translation, tRNA recognizes the mRNA codons, complements them, and add the correct amino acid to the growing protein. CODON and PROTEIN are the missing words.
--------------------------------------------------------------------------
Protein synthesis
Occurs in two steps. Transcription and translation.
Transcription ⇒ mRNA syntheis
The first step before protein synthesis begins is to synthesize messenger RNA, mRNA.
This is the coping process of the DNA section for the desired protein, and it happens in the nucleus.
Translation:
⇒ Cytoplasm stage
• Translation takes place when the formed mRNA moves to the cytoplasm through the nucleus membrane pores.
• Once in the cytoplasm, mRNA meets a ribosome, which is the primary structure for protein synthesis.
• Ribosomes are organelles composed by the association of proteins with rRNA and tRNA. They can be found in the rough endoplasmic reticulum or floating in the cytosol.
• While the ribosome reads mRNA strain from its 5´ extreme to 3´, tRNA adds the correct amino acids to build the polypeptide.
→ mRNA is composed of different codons.
→ Each codon is a chort sequence of
three nucleotides that codes for one amino acid.
→ When tRNA molecules recognize these
sequencies, they add the correct amino
acid to the growing protein.
⇒ Protein synthesis ends when the proteins passes through the Endoplasmic Reticulum and the Golgi complex for their final folding process.
---------------------------------------------------------------
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If a myostatin protein is not the right shape, it cannot fit correctly into a cells receptor true or false
Explanation: Myostatin (also known as growth differentiation factor 8, abbreviated GDF8) is a myokine, a protein produced and released by myocytes that acts on muscle cells to inhibit muscle cell growth. In humans it is encoded by the MSTN gene.[6] Myostatin is a secreted growth differentiation factor that is a member of the TGF beta protein family.[7][8]
Therefore, if the myostatin protein is smaller than a microorganism it would be able to fit into the receptor.
Also, it helps me out if I get brainliest because it makes me a higher rank
can you please answer these questions for me I really need help I am begging you
Answer:
1: 75%
2: 75%
3: 50%
4: 25%
what type of organism is missing from the food web in question #8
Answer:
Algae
Explanation:
Why does a mountain create a rain shadow on the other side of a mountain?
Answer:
I hope this will help u
Explanation:
A rain shadow is a dry region of land on the side of a mountain range that is protected from the prevailing winds. ... As the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. On this side of the mountains, called the windward side, precipitation falls in the form of rain or snow
Activated complement brings about the death of a microbe when it _______________.
A. organizes into a membrane pore and causes lysis of the cell
B. mediates interactions between immune cells
C. activates a chemotaxic response in certain phagocytic cells
D. all of the above
Answer:
C
activates a chemotaxic response in certain phagocytic cells
2. What type of Protist has hair-like coverings that help it move around?
Answer:
Paramecium
Explanation:
Paramecium use cilia, which are hair-like extensions that cover the outside of the cell
I need help on this one!
Answer:
Classify I beilieve!
Explanation: You would need to do this because in order for you to study it you would have to classify them.
A science researcher has developed a computer model of the process of DNA replication in a eukaryotic cell. The model includes the following sequence of bases in one strand of the DNA molecule. AACCTGGCCATGGACCTTTATATAAACTAGGAT The researcher wants to revise the model to show the transcription of DNA to form mRNA. Identify the choice that best completes the statement or answers the question. Which of these revisions to the model would be most useful for the researcher to include
Answer: Identify the promoter and the stop signal (terminator).
Explanation:
DNA is a molecule that contains the genetic information in all living things. This information is used for the synthesis of proteins that make up the body and carry out vital functions of the organism.
The DNA molecule consists of two strands that wind around each other to form a double helix structure, where each strand has a central part formed by sugars (deoxyribose in the case of DNA) and phosphate groups. The four basic components of DNA are nucleotides: adenine (A), thymine (T), guanine (G) and cytosine (C). The nucleotides are joined together (A to T and G to C) by chemical bonds and form base pairs that connect the two strands of DNA. Depending on the sequence of nucleotides (which have different bases), different proteins are synthesized.
DNA replication consists of synthesizing another identical DNA molecule, using enzymes called polymerases, which are molecules specifically dedicated only to copy DNA. Transcription, on the other hand, is the process by which a copy of messenger RNA (mRNA) is generated from the sequence of a gene in the DNA. This RNA molecule leaves the cell nucleus and enters the cytoplasm, where it directs protein synthesis (a polymer made up of many amino acids).
Protein synthesis, or translation, involves translating the sequence of an mRNA molecule into an amino acid sequence during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding sequence of amino acids it encodes. To begin translation, a start codon (set of 3 bases) must first be identified, which is usually AUG that also codes for the amino acid methionine. Then, the codons that follow are read and the corresponding amino acids are added according to the genetic code. The transfer RNA (tRNA) is complementary to the anticodon at specific codons in the messenger RNA and carries the amino acid coding for the codon. In addition, ribosomal RNA (rRNA) is an RNA that is part of ribosomes and is essential for protein synthesis in all living things. rRNAs form the framework of ribosomes and associate with specific proteins to form ribosomal pre-subunits. To finish the translation, a termination codon has to be read, which can be UGA, UAG or UAA.
To revise the model to show transcription to form mRNA, the research should identify the promoter and the stop signal. The promoter is a DNA sequence required to turn a gene on or off. The transcription process starts at the promoter which is usually located near the beginning of a gene and has a binding site for the enzyme that is used to make a messenger RNA (mRNA) molecule. The enzyme RNA polymerase will keep doing the transcription until it reaches a sequence of DNA that is signal which indicates it should stop. This process is called termination, and it happens once the enzyme reaches this sequence, called terminator.
Need help on part 2 pls leave some answer
Answer:
The correct answer would be -
Punnett square is given below and on the base of the result of Punnett square, Millie should mate with Denver to get three different colors of puppies.
Explanation:
The question says that Millie has a genotype BB*, which is a combination or heterozygous condition of dark brown allele B and white allele B*, now cross with Denver (light brown color):
Cross 1:
B B*
B BB BB*
B* BB* B*B*
the results is : 25% dark brown, 50% light brown and 25% white.
cross 2: with Charley (white color)
B B*
B* BB* B*B*
B* BB* B*B*
there is only white and light brown puppies produced
Thus, the correct answer is - Denver.
Is this person male or female? Why?
Answer:
I can't tell you why, but I think the person is male.
Why does Mr. Evil think that he will be able to tunnel from Snivley's grandmother's house to the Daily City back at some point in the future?
Answer:
Mr. Evil, thinks that he will be able to tunnel from Snively's grandmother's house to Daly City bank because when the plate slides (the one that has Snively's grandmother's house) close enough to the bank; he will be able to dig a tunnel into the bank.
Which of these is NOT true about vaccines?
a. they simulate a specific immune response
b. they cause memory cells to be produced
c. they contain an antigen of a weakened pathogen
d. it has been proven that there are many possible negative side-effects to being vaccinated
Answer:
I'm going to say A
Explanation:
because it just make more sense
Five-year-olds are ready for:
Preschool.
Kindergarten.
First grade.
Three-step instructions.
Storytelling.
3. Which of the following statements best explains how the cell membrane 1 point
is selectively permeable? *
The movement of specific substances into and out of the cell is controlled by the cell
membrane
The movement of waste substances into, but not out of the cell is controlled by the
cell membrane
The cell membrane is inflexible and cannot control the movement of substances into
and out of the cell
The cell membrane does not surround the cell so it plays no role in the movement of
substances
Answer:
The movement of specific substances into and out of the cell is controlled by the cell membrane.
Explanation:
The cell membrane is permeable, so it allows for the passage of substances both into and out of the cell. It is also selective, so only specific substances can enter and exit the cell.
true or false
How an animal obtains food is part of its niche
Answer:
False
Explanation:
A niche is making a living as a top carnivore.
definition of compounds
Answer:
A material made up of two or more substances.
Example: H20 2 hydrogen 1 oxygen
Explanation:
Please give me BRAINLIEST and THANKS lol <(￣︶￣)>
You cross nonpure tall plants (Tt) and produce 200
offspring. Which of the following statements about
the offspring is correct?
A. All of the offspring will definitely be tall.
B. 150 of the offspring will definitely be tall.
C. There is a 75% chance that each offspring
will be tall.
O D. There is a 25% chance that each offspring
will be tall.
Answer:
C is the best answer
Explanation:
the dominate trait is in 3 of the four boxes
There is a 75% chance that each offspring will be tall. Therefore option C is correct.
When you cross non-pure tall plants (Tt), you are dealing with a heterozygous genotype, meaning the plants have one dominant (T) and one recessive (t) allele for the height trait.
The dominant allele (T) is responsible for the tall phenotype, while the recessive allele (t) leads to short plants. In this case, 75% of the offspring will likely receive the dominant allele from at least one parent (Tt or TT) and therefore be tall.
The remaining 25% will inherit the recessive allele from both parents (tt) and be short. This is based on the principles of Mendelian genetics and the Punnett square.
Therefore option C There is a 75% chance that each offspring will be tall is correct.
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Which of the following describe Aristotle's model of the solar system? Select the three correct answers.
Each planet spins on an epicycle.
The Sun is at the center.
The Earth was at a point slightly offset from the center.
The stars are attached to the outermost sphere.
Earth is at the center.
Each planet is attached to a crystalline sphere.
Answer:
The Earth is at the center
Explanation:
Aristotle was the first to believe the earth was round but he still thought everything revolved around the earth.
Aristotle's geocentric model of the solar system was based on the belief that the planet moves around the earth at the same speed.
One peculiar thing about this model was that the earth was said to be at the centre, which is why it is described as the geocentric model.
Some characteristics of this model include:
Each planet is attached to a crystalline sphere.Each planet spins on an epicycle.Earth is at the center.Read more here:
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I really need help!! Which lists the order of structures that air passes through on its way into the lungs? A. Nose, trachea, bronchi, pharynx. B. Nose, bronchi, trachea, pharynx. C. Nose, pharynx, trachea, bronchi. D. Nose, pharynx, bronchi, trachea
Answer:
Im pretty sure it's C I help my sister with her collage class for this sorta thing and if I remember correctly this is correct :)
have a great day
Our atmosphere is composed of several gases. The name of the gas we breathe, O2, is A) oxygen squared B) monoxide. C) oxide. D) diatomic oxygen.
A.GL, Gl, gL, gl
B.GG, Gg. LL, Ll
C.GL, Gl
D.GG, Ll
Answer:
GL Gl gL gl
Explanation: