Answer:
Checkpoints are mechanisms that regulate progression through the cell cycle ensuringinsuing that each step takes place only once and in the right sequence. Mutations of checkpoint proteins are frequent in all types of cancer as defects in cell cycle control can lead to genetic instability.
Explanation:
If hornless (H) in cattle is dominant over horned (h) and two homozygous cattle,
one hornless and the other horned are crossed, what will be the genotype and the
phenotype of the first generation?
Explanation:
We are given that H gene responsible for hornless in cattle is dominant over h gene for horned cattle .
The parents taken for cross are homozygous for their character, one horned and other hornless are crossed . The genotype would be HH and hh respectively.
For cross refer to the attachment.
From the cross we can see that,
The genotypic of all the offsprings for the [tex]F_1[/tex] generation is Hh . Since H is dominant over h therefore the phenotype would be hornlessnes for all the offsprings.All organisms need food for energy. But how does an organism's body actually get energy out
of food?
Food supplies an organism with many small, energy-rich molecules. These molecules are
taken in by the organism's cells. Inside cells, the molecules from food are broken down to
release energy that cells can use. This energy powers cell processes that allow the entire
organism to grow and live.
Select all the true statements.
Cells usually take in large food molecules.
Molecules from food can provide energy to cells.
Breaking down molecules can release energy.
Cells use energy to promote the organism's growth.
Submit
The true statements are molecules from food can provide energy to cells, breaking down molecules can release energy and cells use energy to promote the organism's growth.
Molecules from food can provide energy to cells. Energy-rich molecules from food are broken down to release energy that cells can use. Breaking down molecules can release energy. In cells, energy rich molecules are broken down to release energy. Cells use energy to promote the organism's growth. Cells use energy to power cell processes. These cell processes promote the growth of the entire organism.
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Please help with this diagram
What are two ways you could increases the gas pressure of a systemure
All Correct Statements Pertaining to the Dihydroxyacetone Phosphate Reaction Step in Glycolysis.
ATP is Needed to Generate Dihydroxyacetone Phosphate.
Fructose is Needed to Generate Dihydroxyacetone Phosphate.
Glucose-6-Phosphate is Needed to Generate Dihydroxyacetone Phosphate.
Inorganic Phosphate is Needed to Generate Dihydroxyacetone Phosphate.
None of the Statements are Correct.
All Correct Statements Pertaining to the Dihydroxyacetone Phosphate Reaction Step in Glycolysis
Glycolysis takes place in the cytosol of a cell, and it can be broken down into two main phases: the energy-requiring phase, above the dotted line in the image below, and the energy-releasing phase, below the dotted line.
Energy-requiring phase.
The initial glucose molecule undergoes a rearrangement during this phase, and two phosphate groups are linked to it. Because of the phosphate groups, the changed sugar, which is now known as fructose-1,6-bisphosphate, is unstable and can divide into two phosphate-containing three-carbon sugars. Because 2ATP molecules are used throughout these stages, which require phosphates from ATP.
The three-carbon sugars that are produced when the unstable sugar disintegrates are distinct from one another. Glyceraldehyde-3-phosphate is the only one that can proceed to the next step. But since the unfavorable sugar, DHAP, is easily changed into the favorable one, both ultimately complete the pathway.phase that releases energy. During this phase, a series of reactions transform each three-carbon sugar into pyruvate, another three-carbon molecule. Two ATP molecules and one NADH molecule are produced in these reactions. This phase produces four ATP and two NADH because it occurs twice, once for each of the two three-carbon sugars.
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Sorry if it’s a lot I just needed help with the worksheet thank you
1. Metallic luster, does not scratch glass, shows cleavage and has a greasy feel. Mineral name - Galena
2. Nonmetallic luster, does scratch glass, shows cleavage, pink color. Mineral name - Potassium Feldspar
3. Nonmetallic luster, does scratch glass, shows cleavage, has cubic crystals, green color. Mineral name - calcite
4. Nonmetallic luster, softer than glass, breaks into flat sheets, black
color. Mineral name - Biotite
5. Metallic, scratches glass, breaks into uneven surfaces, black streak
color. Mineral name - pyroxene
6. Nonmetallic, doesn't scratch glass, shows cleavage, colorless streak and has cubic cleavage. Mineral name - halite
7. Bubbles in acid, colorless streak. Mineral name - Calcite
8. Nonmetallic, scratches glass, shows fracture and has a red color. Mineral name - Magnetite
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Discuss one issue that Southwest Deserts are facing due to Climate Change. To possibly earn full points, you need to include 3-5 thoughtful sentences on the issue. Include what the issue is and how it is impacting Southwest Deserts.
One issue that Southwest Deserts is facing due to Climate Change is the increase in the average temperature, which hampers life of natural populations living in extreme conditions.
What is global warming?Global warming is considered by the scientific community as a consequence of human activities that generate climate change by increasing the average temperature on the Earth. It has been proposed that global warming is caused due to human activities including burning fossil fuels, deforestation, etc.
One of the most important issues to face in a climate change scenario is the elimination of natural populations such as occurs in the Southwest Deserts, where average temperatures increased more than 2 Fahrenheit grades over the last few years.
Therefore, with this data, we can see that global warming in the Southwest Deserts is dramatically affecting natural populations, which may lead to the collapse of this ecosystem.
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8. The two types of glaciers are
A. ice sheet and cirque.
B. alpine and ice sheet.
C. moraine and outwash.
Answer:
The answer to your question is B. alpine and ice sheet.
Explanation:
What are Alpine glaciers? ⇒ A glacier formed among summits and descending a mountain valley.
Alpine glaciers are a sheet of snow that forms over a cirque or high rock basin.
I hope this helps and have a wonderful day!
What's the primary difference between cholinergic neurons and adrenergic neurons?
A. Cholinergic neurons secrete norepinephrine and adrenergic neurons secrete acetylcholine.
B. Cholinergic neurons are efferent and adrenergic neurons are afferent.
C. Cholinergic neurons are afferent and adrenergic neurons are efferent.
D. Cholinergic neurons secrete acetylcholine and adrenergic neurons secrete norepinephrine.
The primary difference between cholinergic neurons and adrenergic neurons are Cholinergic neurons secrete acetylcholine and adrenergic neurons secrete norepinephrine. So, the correct answer is option D.
The autonomic nervous system has two receptors: cholinergic and adrenergic. The sympathetic nervous system is controlled by adrenergic receptors, while the parasympathetic nervous system is controlled by cholinergic receptors. Additionally, acetylcholine and adrenaline/norepinephrine respectively activate adrenergic and cholinergic receptors. Adrenergic and cholinergic receptors differ in this way.
The sympathetic nervous system, also known as the SNS, is made up of adrenergic fibres, whereas the parasympathetic nervous system, or PNS, is made up of cholinergic fibres. Acetylcholine is the neurotransmitter used by the PNS, whereas noradrenaline or adrenaline are used by the SNS (norepinephrine). Adrenergic promotes sympathetic, or "fight or flight," response. Parasympathetic, often known as rest and digest, is stimulated by cholinergic. Two receptors—Alpha and Beta—are contacted by the sympathetic and parasympathetic nervous systems, which are the two parts of the autonomic nervous system.
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what direct effect do histamines and leukotrienes have on capillaries?
Answer:
They allow capillary walls to open and become leaky.
After analyzing and interpreting data about BMI, obesity and various types of sweetener consumption, develop questions to clarify an argument that proposes a cause and effect relationship between obesity and artificial sweetener consumption.
Despite the fact that artificial sweeteners were created as sugar substitutes to aid in lowering insulin resistance and obesity, data in both areas.
What effects do artificial sweetener intake have on the body?Therefore, using artificial sweeteners might result in irregular pancreatic function, abnormal insulin levels, as well as alterations in other metabolic processes that may increase our risk of developing linked diseases like type 2 diabetes.
Do artificial sweeteners contribute to the development of obesity?Because of this, even though using artificial sweeteners to aid in weight loss seems promising, they have also been connected to a number of health issues, such as obesity and the associated cardiometabolic abnormalities (29–31).
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help me to complete table with saltwater solution
Water serves as the solvent in saltwater, and salt as the solute. Whereas water serves as solvent.
An ingredient that dissolves into a solution and the solvent are called solutes. Any material that may be dissolved by a solvent to produce a solution is referred to as a solute. There are numerous ways a solute can exist. A solid, liquid, or gas may be present. The solute is broken down and distributed evenly among the molecules by the solvent, or substance, which dissolves it. A uniform mixture or solution is produced as a result, which is homogeneous.
Due to its uniform concentration of each component throughout the solution and the ability to be separated by a physical procedure, salt water qualifies as a solution. , where H stands for the element hydrogen and O for the element oxygen. The salt acts as the solute and the water acts as the solvent in a solution of table salt and water. Water serves as the solvent in your body's cells, where solutes like calcium ions and sugar are present.
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Why is it important to follow the scientific method when conducting an experiment?
A) It is important to be precise so that the collected data is meaningful
B)An experiment needs to be repeated to know the data is correct
C)They are the natural steps to follow when solving a problem
D) All of the above
Answer:
All of the above
Explanation:
The scientific method allows us to fully understand our research and to keep it as organized and precise as possible.
Please help me I’ll give u Brainly
Answer:
mRNA: AUG UUG GCG CCG AAA AUA UUU GCA UAA
AUG : Start Codon
UAA : Stop Codon
Therefore, AUG & UAA doesn't code for amino acid in this amino acid sequence.
No. of codons in given mRNA = 9
No. of amino acid in the sequence= 7
Amino Acid chain: Leu-Ala-Pro-Lys-Ile-Phe-Ala
2. What type of cells are produced as a result of meiosis? Group of answer choices
Somatic cells
Body cells, like skin, bone, blood, etc.
Sex cells
Gametes
Sperm & Egg
Answer:
the answer to this question is sex cells
explain the importance of the following.
a The trachea wall contains C-shaped rings of cartilage.
b The distance between the air in an alveolus and the blood in an alveolar
capillary is less than 1/1000th of a millimetre.
c The lining of the trachea contains mucus-secreting cells and cells with cilia.
d Smokers have a lower concentration of oxygen in their blood than
non-smokers.
e Nicotine patches and nicotine chewing gum can help someone give up
smoking.
f The lungs have a surface area of about 60 m² and a good blood supply.
The reasons are as following:
a. A normal trachea (windpipe) has numerous cartilage rings (a strong and flexible tissue). These C-shaped rings support the trachea while also allowing it to move and flex when your child breathes. Complete tracheal rings are a birth defect that causes these rings to be O-shaped rather than C-shaped.
b. Each alveolus has a single cell thick wall. A capillary wall is approximately the same thickness. The distance between air and blood is approximately one thousandth of a millimeter. Red blood cells, which move in a single file through the pulmonary capillaries, transport oxygen.
c. A moist mucous-membrane layer composed of cells with small hair-like projections called cilia lines the trachea. To trap particles, the cilia project into the tracheal lumen (channel). The mucous membrane also contains cells and ducts that secrete mucus droplets and water molecules.
d. Smoking raises the concentration of carbon monoxide (CO) in the blood while decreasing the concentration of hemoglobin-bound oxygen. The formation of carboxyhemoglobin, which reduces the blood's oxygen-carrying capacity and inhibits the body's transport, delivery, and utilization of oxygen.
e. Nicotine gum is an FDA-approved medicine that can assist people in quitting smoking. It can be used every 2 hours on its own to control withdrawal symptoms, or it can be used as needed in conjunction with a nicotine patch to control stronger cravings.
f. The total respiratory surface area of human lungs is approximately 100 m2, which is equivalent to the surface area of a racquetball court! The gills' feather-like shape also increases respiratory surface area. This large surface area is required to process the massive amounts of air required for breathing and delivering oxygen to your lungs.
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What are alleles?
A. the number of individuals in a population
B. mutations in the DNA
C. different forms of a gene
*no wrong answers*
How far is The sun is in diameter than earth
olfactory neurons have the capacity to regenerate in adulthood, while brain neurons do not. why is it thought olfactory neurons adapted this function?
The olfactory nerve is distinct from all other cranial nerves because it has a built-in capacity for regeneration. In contrast to brain neurons, olfactory neurons can regenerate as adults. It is believed that olfactory neurons modified this function in response to the dangers of the olfactory environment.
The thalamus does not act as a relay for olfactory signals, in contrast to other sensory systems, before they reach the cortex. Olfactory cortex neurons and neurons from other parts of the olfactory cortex form close reciprocal connections. Olfactory neurons are thought to have modified this function to protect themselves from the hazards of the olfactory environment.
According to this line of reasoning, the olfactory nerve's inherent capacity for regeneration makes it distinct from all other cranial nerves.
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Which of the following functions would the somatic nervous system carry out?
A. Slowing down heart rate after exercise
B. Speeding up digestion after a meal
C. Regulating blood pressure
D. Chewing food
The answer would be A. I checked.
Which substance slow down the rate of cellular respiration?
Answer:
Malonate
Explanation:
Malonate (malonic acid) has long been known to inhibit cellular respiration.
Explain what are two factors that determine the thermal energy of a substance
The amount of matter, as well as the temperature, are the two factors that determine the thermal energy of the substance.
What is thermal energy?Thermal energy is the internal energy that a system has when it is in thermodynamic equilibrium due to temperature. The energy of systems that are not in a state of thermodynamic equilibrium cannot be transformed into useful work as easily as thermal energy.
The same fluid or solid in a thermodynamic equilibrium state with the same energy (as thermal energy), however, cannot do work unless it is combined with another substance at a different temperature, as in a heat engine. This is because the same fluid or solid in a thermodynamic equilibrium state has the same energy (as thermal energy), but it cannot be converted to work in a mechanical device.
In the science field we use the metric units, this is due to
A. Metric units are universally accepted.
B. Metric is a universal scientific language.
C. Both
1) A survey asked 200 Grade 4 students about their reading preferences. Based on Graph #1, about how many of them would you expect prefer comic books?
x
A. 10
B. 20
C. 60
D. 80
E. 100
x
2) About how many students do not prefer non- fiction?
x
A. 60
B. 75
C. 100
D. 150
E. 180
x
3) Overall, about how many students prefer literature (poems, plays, or novels)?
x
A. 45
B. 90
C. 100
D. 130
E. 180
xx
Graph #2: Membership in School Clubs
x
4) At Rory’s school, students must join one after school club. Based on the data in Graph #2, which club attracted about 30% of students?
x
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
x
5) Approximately What percent of students chose not to join the yearbook club?
x
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
x
6) About what percent of students joined the art club?
x
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
x
Graph #3: How Tom Spent His Birthday Money
X
x
7) Tom received $400 for his birthday, and he decided to spend it all. How much did he spend on clothes?
x
A. $96
B. $86
C. $75
D. $60
E. $20
x
8) How much did Tom’s snowboard cost?
x
A. $216
B. $180
C. $110
D. $85
E. $56
x
9) How much did he spend on video games?
x
A. $3
B. $14
C. $56
D. $86
E. $110
x
10) About how much did he spend on DVDs and video games combined?
x
A. $17
B. $34
C. $55
D. $68
E. $88
Answer:
(1) b 20 is the prefer comic books
Which compound is a reactant in cellular respiration? (1 point)
O carbon dioxide
O oxygen
O ATP
O water
Answer:
Oxygen
Explanation:
In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Which is TRUE of Gram-
negative bacteria?
A. a thick cell wall of peptidoglycan
B. stains pink from safranin
C. causes sickness like strep throat and
staph infections this
D. less threatening and easily killed
with antibiotics
Answer: B. stains pink from safranin
Explanation:
Safranin is the counterstain in the gram stain protocol. Gram positives have a thicker wall of peptidoglycan and will retain the purple from the crystal violet while the gram negative will only stain from the safranin.
C. Staph refers to staphylococcus aureus and is gram positive.
D. Gram negatives are generally more resistant to antibiotics.
Which are examples of viral
infections?
A. Strep throat, botulism, and anthrax
B. Common cold, flu, and chicken pox this
C. Trichinosis, hook worm, and
elephantiasis
D. Malaria, African Sleeping sickness,
and intestinal disease
Answer:
The examples of viral infections are B. Common cold, flu, and chickenpox.
Explanation:
Viral infections are caused by viruses, which are small infectious agents that can only replicate inside living cells. The common cold, flu, and chickenpox are all caused by different types of viruses. Strep throat, botulism, anthrax, trichinosis, hookworm, elephantiasis, malaria, African Sleeping sickness, and intestinal diseases mentioned in the other options are caused by bacteria, parasites, or other pathogens, not viruses.
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What is John Doe's blood type? A drop of John Doe's blood was
placed into each of the four circles on this blood type card.
Anti-A serum was added
to this circle - no clumping
means his blood does
NOT have A Protein.
Anti-D serum was added
to this circle - it clumped!
This means John's blood
has D Drotein (Rh factor).
Blood Proteins:
ABO
+
0-94
DELL
Contr
Drag the proteins over to the box which
John's blood has. This is his blood type!
Remember: + means Rh is present,
- means there is no Rh.
Anti-B serum was added
to this circle - no clumping
means his blood does
NOT have B Protein.
No clumping in the control shows
there is nothing wrong with the blood!
John Doe's
Blood Type:
O
pls help
Based on the clumping that was obtained when anti-D serum was dropped into John Doe's blood, John Doe's blood type is Blood type D.
What is blood typing?Blood typing refers to the process by which blood is classified into types.
The process of typing blood involves reactions in which agglutination of blood occurs when a certain type of antiserum is dropped into the blood that contains a particular antigen such that an antibody-antigen pair is obtained.
The presence of certain antigens on the surface of blood helps to classify blood into types.
For example, when anti-A serum is added to a blood sample and agglutination occurs, the blood type could be either blood type A or blood type AB as these blood samples contain the A antigen on the surface of the red blood cells.
Similarly, when anti-D serum is added to a blood sample, the blood type is a blood group D as this blood sample contains the D antigen on the surface of the red blood cells.
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How do people affect the environment?
Answer:
Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation have an adverse effect on the physical environment. Climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.
Explanation:
High quality chest compressions in adult CPR characterized by Press down, compressing the chest at a O least 2 inches All of the above .b O Let the chest recoil completely between .c O compressions Delivered at a rate 100 to 120 beats per .d O minute
High quality chest compressions in adult CPR characterized by Press down, compressing the chest at a compressions Delivered at a rate 100 to 120 beats per minute.
What is CPR?Cardiopulmonary resuscitation (CPR) can help save their life. The American Heart Association advises performing quick, forceful chest compressions to begin CPR. This recommendation for hands-only CPR is valid for both untrained bystanders and first responders.
It's always better to try than to do nothing at all if you're hesitant to administer CPR or aren't sure how to do it properly. The choice between taking action and doing nothing could mean the difference between life and death.
Therefore, High quality chest compressions in adult CPR characterized by Press down, compressing the chest at a compressions Delivered at a rate 100 to 120 beats per minute.
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