Answer:
The correct answer is - option D. all of the above.
Explanation:
Smoking cigarettes or consumption of tobacco contains chemical that is responsible for the mutating p53 gene specifically which inactivates the action of p53.
TP53 mutation changes the amino acid in the p53 protein which produces the altered or modified version of protein that is incapable of performing its action of repairing damaged DNA during cell cycle for genome stability. DNA damage would be accumulate as it is not able to control the cell division by apoptosis and cell death would not be activated.
Thus, the correct answer is - option D.
You just performed 5 cycles and 2 minutes of CPR on an adult. You reassess for a pulse. No pulse is present. What is your next course of action?a. search for an AEDb. call 911 immediatelyc. reinitiate CPRd. none of the above
Answer: The correct answer to the question is option A
SEARCH FOR AN AED.
Explanation: AED stands for Automated External Defibrillator.
It is a machine that is used to re-establish a normal cardiac rythym in cases of cardiac arrest or when the heart stops beating momentarily.
It delivers electric shock via the chest to the heart inorder to stop an an irregular heart rythym and establish an effective one.
From the scenerio in the question,5 cycles and 2minutes of CPR has been done on the victim but no pulse is present, The next best thing to do is to use an AED to shock the victim inorder to re-establish the lost cardiac rythym and pulse respectively.
This is achieved placing the pads on victim, analysis the rythym, move slightly away from the victim to prevent any contact and then shock the victim by pressing the shock button as the AED instructs showing that the rythym presented is a shockable one.
A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate broth, there is no accumulation of gas in the Durham tube. The test for the presence of nitrite is colorless. When zinc powder is added, a bright red color develops. Interpret these results.
Answer:
All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.
By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.
Explanation:
Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia
The chart lists organisms in five different categories living near the Texas Gulf Coast.
Organisms Living Near the Texas Gulf Coast
Vegetation
Mammals
Invertebrates
Fish
Birds
• Algae
• Willow oaks
• River otter
• Coyotes
• Shrimp
• Mosquitoes
• Red drum
Pygmy
surfish
.
• Laughing
gulls
• Wood ducks
Based on the chart, which food chain best models a flow of energy in this ecosystem?
Answer:algae
Explanation:because algae is able to live any where water is at
list the parts that make up a human body
Answer:
head
neck
face
forehead
shoulder
hand
finger
arm
forearm
wrist
thigh
legs
foot
toe
heel
toenail
knee
chest
stomach
Explanation:
Answer:
The answer is (⌐■-■)
Explanation:
Cells ( most important)
Bones
Skin
Organs (need to work the body)
Hands
Legs
Hope this helps....
Have a nice day!!!!
(•‿•)
Which properties of systems does the robot have, and which does it not? Which properties of living things does the robot have and which does it not? Which potential emergent properties could this robot have?
Answer:
Physical structure, mobile and brain.
No feelings and no reproduction.
Explanation:
A robot have the following properties of systems such as they have a physical structure which helps them to move from place to place. They also have a sensor system which detect any change in the environment and respond according to it, a power supply which helps them for doing different activities and a computer brain which control all the activities. A robot does not have any feelings such as pain, happiness etc because it is a machine and no ability to reproduce and increase its population like humans. Doing work very fast and perfection in its work are the potential emergent properties the robot have.
Explanation:
Air exits through nose or mouth.
a. True
b. False
Carbon dioxide is carried to the lungs.
a. True
b. False
Carbon dioxide diffuses into a capillary.
a. True
b. False
Carbon dioxide diffuses into an alveolus.
a. True
b. False
Carbon dioxide is released from the mitochondria.
a. True
b. False
Hii answer to question 12 please?
Answer:
D
Explanation:
This is an experiment to prove that photosynthesis or exposure of light produces starch.
Only the D part will contain starch because D part shows green color which is the sign of starch formation due to photosynthesis while the covered region and white region will not form starch because they do not undergo photosynthesis process.
Hence, the correct option is "D".
Answer:
D
Explanation:
^^^
Help me guys please. What is a mutation? What causes mutation?
Answer:
A mutation is a change in a DNA sequence. Mutations are commonly caused by mistakes during DNA replication. However, they can also be caused by ultraviolet radiation, exposure to chemicals called mutagens, and infection by viruses. But, a mutation usually occurs when a nucleotide in the DNA gets changed, causing the nucleotide sequence to be copied incorrectly which leads to the wrong code for a protein. This can sometimes be fatal.
Hope that helps.
what is maeant by sexual reproduction
Answer:
Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male gamete (sperm cell). The fusion of these gametes occurs at fertilization resulting in the formation of a diploid zygote. ... Two major types of sexual reproduction are syngamy and conjugation.
Explanation:
Answer:
The production of a new living beings by intercourse of two different genes is called sexual reproduction.
Explanation:
In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete with a single set of chromosomes combines with another to produce an organism composed of cells with two sets of chromosomes.
Hope it helps you:)!!!!!!!!!!!
Which organisms transform nitrogen to a form that is useful to plant?
Answer:
bacteria
Explanation:
Bacteria helps in a process called ammonification where ammonia is oxidized to nitrites and then to nitrates and these nitrates are the most usable form for plants.
The extensive connective tissue network, which encircles the bases of the pulmonary trunk and aorta and the valves of the heart, is called the ________ of the heart.
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The extensive connective tissue network, which encircles the bases of the pulmonary trunk and aorta and the valves of the heart, is called the Cardiac skeleton of the heart.
Explanation:-The cardiac skeleton consists of four bands of dense connective tissue, called fibrous rings, that surround the base of the pulmonary trunk, aorta, and mitral and tricuspid valves.MayInteresting facts about Human[♥️]!!The average heart is the size of an adult fist.Your heart will beat about 115,000 times each day.The beating sound your heart makes is caused by the opening and closing of its valves.The human heart weighs less than one pound, but a man’s heart is typically two ounces heavier than a woman’s.A woman’s heart beats slightly faster than a man’s.There is such a thing as a broken heart. Symptoms are similar to a heart attack but the cause is usually stress and not heart disease.Laughing is good for your heart. It reduces stress and gives a boost to your immune system.━━━━━━━━━━━━━━━━━━━━
When two different bacterium species are used to produce pest-resistant Bt plants, one bacteria naturally produces the pest-killing toxin and the second bacteria is used to ______.
How is sugar/glucose converted to ATP with cellular respiration?
Answer:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
Explanation:
oth energy and matter can cross boundaries in a(n)... *
What state of matter was discovered in 1995?
A. solid
B. liquid
C. gas
D. the Bose-Einstein condensate
Answer:
D. the Bose-Einstein condensate
Explanation:
Satyendra Nath Bose found the Bose-Einstein condensates in the 20th century
The Bose-Einstein condensate
Explanation:
Which statement describeWhich statement describes the dependent variable? It is the causal variable. It is the controlled variable. It is the stimulus variable. It is the affected variable.s the dependent variable?
Answer:
It is the affected variable.
Answer:
It is the affected variable.
If one were to argue that World War II was the most prolific time for agricultural research and development, which of the following statements would best defend this assertion?
Answer:
The correct answer would be : Citizens back home resorted to creating innovative ways of making food and crops last longer due to lack of manpower and funding.
Explanation:
During the time of world war II, almost every industry shifted their production in order to fulfill the needs of military by shifted to the production of weapons, tanks and other military equipment.
Food and agriculture also affected by this however the citizens and farmers find innovative ways to store crops for longer time and and for improvement in crops production.
Thus, the correct answer would be Citizens back home resorted to creating innovative ways of making food and crops last longer due to lack of manpower and funding.
Organisms that swim freely and maneuver actively in the water column are called what?
Answer:
Zooplankton - Animals (mostly microscopic) which drift freely in the water column.
Explanation: Zooplankton, small floating or weakly swimming organisms that drift with water currents and, with phytoplankton, make up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.
Hope this helped!!
What is a scientific word that starts with homo? Sorry if its the wrong subject, I couldn't find science.
Answer:
homogeneous
Explanation:
Answer:
homogamy
homogeneously
homospory
homologically
homonym
homoeroticism
homograph
Ostriches have wings similar in form to those of their ancestors, but that do not allow the birds to fly.
Answer:their weight
Explanation:
Ostriches weigh more than 400 pound and can be as tall as 9 feet.....making it 99.9% impossible for its flight......
Hope it helped?
An organism is unicellular autotrophic and ancient what domain does this organism does not belong
Answer:
Eukaryote
Explanation:
“Ancient” refers to archae. Archae and bacteria are the prokaryotic two domain out of three. In fact eukaryote have protists and plants which are able to perform autotrophic behavior. But unicellular wouldn’t define eukaryotes.
Why might buying a more expensive product made of recycled materials be a smarter purchase in the long run?
Answer:
Explanation:
Recycled materials are often more expensive but they save recourses such as trees or minerals
The respiratory system is divided into two parts i.e the air passageway and the lungs. Explain the air passageway and its parts.
Answer:
It is a channel or part through which air passes specifically : an anatomical part (such as the pharynx and bronchial tubes) involved in respiration Pertussis is a bacterial infection of the air passages leading to the lungsA female rabbit reaches reproductive maturity at about six months of age. Both young and adult rabbits are highly subject to predation. Which reproductive strategy do rabbits likely exhibit?
Answer:
fast, intensive reproductive investment
Explanation:
Which of the following terms refers to the combination of
DNA and proteins in the cell nucleus?
A. Allele
B. Chromosome
C. Gene
D. Chlorophyll
In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons? Carbon-13 hydrogen-2 neon-21 uranium-238
Answer:
The correct answer is "uranium-238".
Explanation:
Uranium-238, is the most abundant isotope of the element uranium. Uranium-238 has not enough nuclear force to balance electrostatic forces between protons, and as a result, it is a radioactive isotope and its losing energy because of the spontaneous breakdown of its atomic nucleus. Uranium-238 has a half-life of 4.5 billion years and is used as fuel in nuclear reactors as well as for dating purposes.
It is known that many trees lose their leaves in response to decreasing day length. As a result, you think that Gingko trees may also lose their leaves in response to decreasing day length. This statement is an example of:
Answer:
the loss of trees
Explanation:
What is the level of organization for heart and blood vessels?
Answer:
The next level is the organ system level. Many organs working together to accomplish a common purpose create an organ system. For example, the heart and the blood vessels of the cardiovascular system circulate blood and transport oxygen and nutrients to all the body cells.
Explanation:
Pollution that runs off the land often combines with sediments at the bottoms of bodies of water. In this way, fish may become poisoned. This is an example of how fish interact with the _____.
Answer:
Pollution that runs off the land often combines with the sediments at the bottom of the ocean or other types of water. In this way, fish may become poisoned. This is an example of how fish interact with the following are types of rocks that make up the lithosphere exceptThe amount of carbon dioxide in the atmosphere would greatly increase the population .
Which phrase describes a lava plateau? O steep-sided mountain O gently sloping mountain hardened magma in a pipe O volcanic material in valleys
Answer:
B. Gently sloping mountain hardened magma in a pipe
Explanation:
A volcanic plateau is a plateau produced by volcanic activity. There are two main types: lava plateaus and pyroclastic plateaus.
The phrase that describes a lava plateau is "hardened magma in a pipe".
A lava plateau is a large, flat area of land that is formed when lava from a volcanic eruption spreads out over a large area and hardens.
What is magma ?This hardened lava is called "magma", and it typically comes from a "pipe" or vent that connects the Earth's surface to a magma chamber deep beneath the ground. As the lava flows out of the vent, it cools and hardens, creating a flat, solid surface that can stretch for many miles in all directions.
So, the phrase "hardened magma in a pipe" best describes a lava plateau. The other phrases, "steep-sided mountain" and "volcanic material in valleys", describe different types of volcanic landforms.
A steep-sided mountain is a type of volcano that is characterized by a tall, narrow peak and steep slopes. These volcanoes are formed when magma rises up through the Earth's crust and is forced to the surface through a narrow vent.
As the magma erupts, it forms a steep-sided cone-shaped mountain, which can rise to great heights depending on the amount of magma that is ejected.
Volcanic material in valleys is a type of volcanic landform that is characterized by deposits of volcanic ash and other materials that have accumulated in valleys and low-lying areas.
These deposits are usually the result of explosive volcanic eruptions, which can send ash, rocks, and other materials high into the air. As the materials fall back to the ground, they can accumulate in valleys and depressions, forming layers of volcanic material that can be several feet thick.
In summary, while "hardened magma in a pipe" describes a lava plateau, "steep-sided mountain" and "volcanic material in valleys" describe different types of volcanic landforms.
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