It is important that cardiac muscle tissue does not tire so that a continuous supply of Oxygen to the tissues is maintained.Otherwise, the metabolic activities of the body will cease.
Explanation:
Cardiac muscles are the muscles of the heart.
The pumping mechanism of the heart is due to the contraction and relaxation of cardiac muscles.
The blood that carries oxygen is transported to the different tissues of the body through the blood vessels and provides the oxygen to the tissues for metabolic functions.
If cardiac muscles tire, then the heart will stop pumping and oxygenated blood will not reach the cells. Deficiency of oxygen will result in reduced ATP production and soon the activities of tissues will cease and multiple organ failure will occur.
This will lead to the death of the individual.
Why would a drug that damages capsids help treat a viral infection?
A. Capsids cause conjunction.
B. Capsids are bacteria
C. Capsids are Antibiotics
D. Capsids help viruses enter cells
Answer:
D. Capsids help viruses enter cells!
Explanation:
Approved as of late May 2021. I got it correct. :)
Answer:
D. Capsids help viruses enter cells.
Explanation:
Because of that role, if the capsids were damaged it would help prevent a viral infection.
A series of coral reefs is located near a coastline. In 3–5 sentences, construct an argument about how people can help prevent erosion to the coastline
Answer:
As the erosion happens often, there is a principal way of solving or reducing the erosion, like sea wall.
Sea walls should be formed in places where erosion hits. They serve to stop the water and return it to the sea.
Explanation:
People are the main reason for erosions. They are using explosions for fishing and that is how they are degrading the coastline.
Other ways of stoping the erosion are sand, vegetations, sandbags, etc.
To prevent erosion to the coastline near coral reefs, people can limit development, use strategies like beach nourishment and breakwaters, and practice responsible tourism.
Explanation:There are several ways people can help prevent erosion to the coastline near coral reefs. These include:
Limiting development near the coastline to reduce the amount of sediment and runoff that can enter the ocean and damage the reefs.Implementing strategies such as beach nourishment and the use of breakwaters to help protect the coastline from wave action and erosion.Practicing responsible tourism near coral reefs by not touching or damaging the coral, and being mindful of pollution and waste disposal.Learn more about preventing erosion to the coastline near coral reefs here:https://brainly.com/question/14555890
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In which direction does wave energy travel?
Answer:
The wave travels in a direction that is perpen- dicular to the direction of the disturbance. The medium is the water, and energy is transferred outward in all directions from the source.
Answer:
perpen- dicular
at least i think it is
hope this helps !!!
What are two reasons that this research was significant?
The main purpose of research is to inform action, to prove a theory, and contribute to developing knowledge in a field or study.
Why is research important?Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error.
Generally, research is the organised and systematic method of finding answers to questions. It is systematic because it is a process broken up into clear steps that lead to conclusions. Research is organised because there is a planned structure or method used to reach the conclusion.
There are four main types of Quantitative research: Descriptive, Correlational, Causal-Comparative/Quasi-Experimental, and Experimental Research.
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Final answer:
Research is vital for creating evidence-based public policy and informed personal decisions, as well as for demonstrating scientific links, like those between smoking and cancer. Studies' replication ensures the validity and reliability of findings, which is essential in fields that impact public health and policy.
Explanation:
Research is significant for various reasons, particularly in guiding public policy and personal decisions with evidence-based findings. One reason research is important is that it allows scientific demonstrations of links between phenomena, such as how early longitudinal studies by the American Cancer Society showed connections between smoking and increased cancer rates. Another reason is that replicating studies strengthens the reliability of the findings, providing confidence that results are not due to chance or specific conditions. In addition, by using archival or secondary data, researchers lay a solid foundation for developing their central research questions and conducting thorough investigations.
For researchers, it is paramount that others attempt to replicate their studies to ensure that the findings are valid and not an anomaly. This replication contributes to the strength of scientific evidence and eventually, to consensus within the scientific community on certain issues. This is crucial in psychological research and any field where understanding behavior and its implications can significantly affect public health, policy, and individual life choices.
How do you combine the probability of multiple
events?
mutliply them
add them
divide them
Answer:
Multiply the events.
Explanation: You should multiply the events by multiplying the first event by the second event.
Say you had event B (1/3) and event A(1/4). Then you would multiply them and that would be the probability of both events.
What information is coded in the complex molecule?
The number of covalent bonds that an atom tends to form is equal to:
A: the number of valence electrons.
B: the number of unbalanced neutrons.
C: the number of unpaired electrons.
D: the atomic number.
E: the number of nearby atoms.
The number of covalent bonds that an atom tends to form is equal to the number of valence electrons.
Explanation:
Covalent bonds are formed between non-metals by sharing of the equal number of valence electrons between the two atoms. The valence electrons are the number of electrons in the outermost shell of the atom. These valence electrons share between the atoms and from bonds. eg. are NH3 and H2.
The sharing of valence electrons complete the octet rule and covalent bonds are formed.
- Higher Order Thinking Nicole, Tasha,
Maria, and Joan each walk to school from
home. Nicole walks 1.11/12 miles. Tasha
walks 2.1/12miles. Maria walks 1.7/12miles.
Joan walks 2.2/12miles. How can you find
how much farther Joan walks to school
than Maria?
Answer:
Joan Walks [tex]\frac{7}{12}[/tex]miles farther than maria
Explanation:
Given:
Distance walked by Nicole = 1. 11/12 miles
Distance walked by Tasha= 2. 1/12 miles
Distance walked by Maria = 1. 7 /12 miles
Distance walked by Joan = 2. 2/12 miles
To find:
How much farther Joan walks to school than Maria = ?
Solution:
We can find the distance that Joan walk more than maria by subtraction
Joan distance - maria distance
here the distance are given in mixed fraction , so lets covert them into fraction and perform subtraction
=> [tex]2\frac{2}{12} - 1 \frac{7}{12}[/tex]
=>[tex]\frac{24+ 2}{12} - \frac{12 +7}{12}[/tex]
=>[tex]\frac{26}{12} - \frac{19}{12}[/tex]
=>[tex]\frac{26 - 19}{12}[/tex]
=>[tex]\frac{7}{12}[/tex]
Final answer:
To find out how much farther Joan walks to school than Maria, subtract Maria's walking distance (1.7/12 miles) from Joan's (2.2/12 miles), yielding a difference of 0.5 miles.
Explanation:
To find out how much farther Joan walks to school than Maria, we need to calculate the difference between the distances they walk. Joan walks 2.2/12 miles, and Maria walks 1.7/12 miles. To find the difference, we subtract Maria's distance from Joan's distance. This can be done by converting the fractions to twelfths to make it easier to subtract:
Joan: 2.2/12 milesMaria: 1.7/12 milesThe difference in the distances they walk to school is:
(2 + 2/12) miles - (1 + 7/12) miles = 1 + (2/12 - 7/12) miles = 1 - 5/12 miles.
Therefore, Joan walks 0.5 miles farther to school than Maria.
URGENT!!!
Some scientists propose that life on earth could have formed from primitive conditions, like those illustrated in the Urey-Miller experiment model shown above. However, more recent analysis indicates that the atmospheric components might be different than is shown above. If high rates of volcanic activity were responsible for the atmospheric conditions in the atmosphere, what modifications to the model might be necessary?
A) Water vapor should be present in higher concentrations, as volcanic activity would cause more water to evaporate.
B) Oxygen gas should be present in higher quantities, as photosynthesis would be occurring at a higher rate after volcanic activity.
C) Ozone would be present in higher quantities, as volcanic activity would increase the combination of free oxygen atoms into ozone.
D) Carbon dioxide, sulfur dioxide, and hydrogen sulfide should be present in higher concentrations than are depicted above, as they are emitted from volcanic eruptions.
Answer:
D) Carbon dioxide, sulfur dioxide, and hydrogen sulfide should be present in higher concentrations than are depicted above, as they are emitted from volcanic eruptions.
Explanation:
Volcanic eruptions can be extremely harmful and destructive for living beings, including plants, animals, and human health. However, they are also very dangerous for the environment.
These volcanic eruptions relase water vapor and toxic gases, such as carbon dioxide, sulfur dioxide, hydrogen sulfide, and carbon monoxide, into the atmosphere.
Therefore, if there were high rates of volcanic activity, responsible for atmospheric conditions, there would be higher levels of carbon dioxide, sulfur dioxide, and hydrogen sulfide.
Answer:
D) Carbon dioxide, sulfur dioxide, and hydrogen sulfide should be present in higher concentrations than are depicted above, as they are emitted from volcanic eruptions.
Explanation:
took the usatestprep quiz
Why is UVA light considered a mutagen?
It penetrates the skin and can cause mutations.
It can be prevented by wearing a protective vest.
It produces chemicals that can be inhaled.
It is found in synthetic dyes and cosmetics.
Answer:
It penetrates the skin and can cause mutations.
Explanation:
UV light is the most common source of radiation that affects DNA, but it is a weak radiation and it penetrates only the surface cells of your skin. However, UVA radiation is considered as a mutagen because it penetrates deep into the skin and can cause mutations.
Answer:
The first one, It penetrates the skin and can cause mutations
Explanation:
what’s an independent and dependent variable
Answer:Independent Variable
A variable that you (the scientist) changes and you have control over. The factor being tested in an experiment.
Dependent Variables
Factor(s) that change in response to other factors. It's what your measuring in your experiment to see whether or not the independent variable made an impact. This is what the scientist focuses their observations.
Explanation:
Answer:
one is control in scientific experiment while the other is being tested
Explanation:
The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
Which makes viral infections difficult to defend?
A.) the immune system must attack the body’s own cells
B.) viruses are attacked by a nonspecific immune response
C.) viruses live outside of cells
D.) macrophages work slowly
Answer:
Viral infections are difficult to defend as viruses are attacked by a nonspecific immune response.
Explanation:
Viral infections often tend to weaken the immune system of the body by turning it incapable of fighting the virus. Any external drug administered to fight the virus also leaves an impact on the beneficial cells causing them to cause side effects. The response of the immune system to the virus often fails to address the root of the virus and hence, the virus keeps growing stronger.Dr. Phillipi is writing an article to be published in the journal Psychological Science. At the beginning of her paper, she provides a short summary of the entire work. What is this brief description called?
Choice A., an introduction
Choice B., an abstract
Choice C., a summary
Choice D., a reference
The brief description of the project is called Abstract.
Option B.
Explanation:An abstract is defined as a brief description of the project or content of an article, speech, or a book. An abstract is given at the beginning of the book or project to describe what's the topic of the project, what the project is going to prove, or to explain.
An introduction on the other hand is a description about the project topic, the prevailing idea, or explaining the topic of project.
A reference is described as the source from where the data of the project are collected or hints are taken.
A summary is the paragraph briefly describing the project conclusion at the end of the project, to briefly explain everything about the project.
Consuming even moderate amounts of alcohol can cause drunkenness and to do what to
the body
Even moderate alcohol consumption causes dis-balance in movement.
Explanation:
The alcohol consumption causes severe ill effects on brain, liver and other body parts.
It can lead to memory loss and intelligence loss. It disturbs the coordination of signalling of the brain to the body. The most affected part of the brain would be cerebellum even in moderate drinking which is the centre of balance and movement in the body.
The liver will be the most affected organ in the body.
Answer:
not enliven so it's probably poison
Explanation: I'm not 100% sure
Why do bird embryos have gill slits?
(I’m confused, I think it has something to do with the evolution...)
Explanation:
bird embryos have gill slits because, yes, of evolution. These slits are found in the embryos of all vertebrates because they share as common ancestors the fish in which these structures first evolved. even human beings have gill slits as embryos that disappear before birth.
What happens during prophase?
Answer: The cell increases in size and chromatin condenses into chromosomes
Explanation:
All cells have ____________, in eukaryotes it is stored in the _______.
Answer:
a plasma membrane and Eukaryotic cells have organelles surrounded by membranes. This includes mitochondria and a nucleus, where DNA is stored.
Explanation:
BRAINLIEST
Part A: explain my process to his important to sexual reproduction.
Part B: identify processes 1 and 3. State one difference between the cells produced by process with 3.
Answer:
Part A: The process of sexual reproduction is important because by this process organisms with varied genetic characteristics can be formed. Crossing over and independent assortment allow individuals to be born which are not alike to another and their parents. As a result, genetic diversity is produced.
Part B:
The process 1 is meiosis. The process 3 is development by mitosis.
The reproductive organs form sperm and egg by the process of meiosis. During this process, the number of chromosomes is reduced so that the number of chromosomes of an individual can be maintained.
The zygote converts into an embryo in a process called germinal development. The zygote replicates by mitosis to form into an embryo.
Sexual reproduction involves meiosis and the fusion of gametes to produce genetically distinct organisms.
Explanation:Sexual reproduction involves the process of meiosis, which produces haploid cells called gametes. These gametes from two different organisms fuse together, forming a new diploid cell, a zygote. This fusion of gametes generates a genetically distinct organism.
Process 1: Meiosis - Meiosis is the process in which a diploid cell divides twice to produce four haploid cells. These haploid cells are the gametes. The main difference between the cells produced by meiosis and those produced by process 3 is that the cells produced by meiosis are genetically distinct from each other, while the cells produced by process 3 are genetically identical to each other.
Process 3: Fusion of Gametes - The fusion of gametes from two different organisms results in the formation of a new diploid cell, a zygote. This zygote develops into a new organism.
please help asap
(show your work)
Burning a nut raises the temperature of 100 grams of water from 20 degrees C to 60 degrees C. How much heat does the water gain? Heat is measured in calories. 1 calorie = 4.18 J
Answer:
16 KJ or 16,720 J energy has gained by the water.
Explanation:
Given data:
Mass of water = m = 100 g
Temperature difference = ΔT= (60 - 20)∘C
specific heat of water 1 calorie = c = 4.18 J
To find:
Heat absorbed by water = q=?
Formula:
q = m . c . ΔT
Solution:
q = (100 g) x (4.18J/g ∘C) x (60 - 20)∘C
= 16,720 J
Final answer:
The water gains 4,000 small calories (cal) or 4 large calories (Cal) of heat when a nut is burned and raises the temperature of the water from 20°C to 60°C.
Explanation:
To calculate the amount of heat gained by the water when a nut is burned, we can use the formula:
Q = mcΔT
where:
Q is the heat in calories,
m is the mass of the water in grams,
c is the specific heat capacity of water (1 cal/g°C),
ΔT is the change in temperature in degrees Celsius (°C).
Given:
m = 100 g,
ΔT = 60°C - 20°C = 40°C.
Plugging the values into the formula:
Q = 100 g × 1 cal/g°C × 40°C = 4000 cal
Since 1,000 small calories (cal) make up 1 large calorie (Cal), the heat gain in large calories would be:
4 large Cal (since 4000 cal / 1000 = 4 Cal).
2)
Substance Specific Heat (J kg-1 K-1)
Aluminum 900
Copper 390
Brass 380
Silver 230
Platinum 130
How many Joules of heat would be required to heat 0.5 kg of aluminum by 2K?
A) 300 J
B) 450 J
C) 900 J
D) 1800 J
Answer:
How many Joules of heat would be required to heat 0.5 kg of aluminum by 2K?
300J
Explanation:
Answer:
It's C) 900 J
Explanation:
USA Test Prep 2020
.
Heat moves from the land to the air through the process of
—
O conduction
O convection
O radiation
O refraction
—
—
Answer:
Heat moves from the land to the air through the process of "conduction".
Explanation:
When the two things come in contact with one another at different temperatures or basically when heat flows from the warmer to the colder region or phase until both reach at the same temperature is understood as "conduction". Conduction is a physical process which occur by collision of the microscopically colliding particles like molecules, atoms and electrons on the movement of heat through a substance.
While convection take place by the movement of heated objects and it isn't the process influencing air and water temperature difference. The examples of conduction are like a radiator, a heating pad, sand can conduct heat etc.
Help, correct answer only!!!!!!!!!!!!!!
Which situation involves mainly biotic factors?
A drop in the pH of ocean water prevents coral from growing properly, which harms the coral reef ecosystem.
A fungus wipes out a bat population, which allows the mosquito population to increase and spread disease to people.
Dust from a volcanic eruption blocks sunlight to Earth's surface, and as a result the weather gets colder.
A drought causes crops to die, and as a result cattle go hungry.
Answer: It is B
there you go good luck
Biotic factors:
A biotic factor is a living organism that shapes its environment.
Biotic and abiotic factors work together to create a unique ecosystem.
For example: Humans, insects, wild animals, birds, bacteria, etc.
The situation which mainly involve biotic factors are:
B. A fungus wipes out a bat population, which allows the mosquito population to increase and spread disease to people.
This situation mainly involve biotic factors such as fungus, bat, mosquito, people.
Thus, option B is correct.
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Which factor will increase a population's size?
A.) High birthrate
B.) High death rate
C.) High emigration rate
D.) High predation rate
Answer:
a
Explanation:
b and d would kill pop
c has pop leaving
The factor that will increase a population's size is High birthrate. Therefore, option (A) is correct.
High birthrates can grow populations. Population expansion occurs when the birthrate surpasses the death rate. Birthrate is the number of births per population per time period.
High death rates reduce population size. A population shrinks when the mortality rate exceeds the birthrate. Emigrants leave the population to live elsewhere. This may reduce population size. Predator predation rate is high. Predation decreases prey species populations but does not directly increase them.
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The joy that comes from achieving a certain goal or the anger that arises when a particular injustice has been made are __________. A. norms that regulate an inappropriate display of emotion B. norms that regulate an appropriate display of emotion C. emotional reactions generally consistent across cultures D. emotions that vary across cultures
Answer:
The correct option is C) emotional reactions generally consistent across cultures
Explanation:
There are certain emotional reactions which are similar for people of every culture whereas there are other emotional reactions which vary across different cultures.
The emotional reactions of being happy after achieving something and the emotional reaction of anger due to any injustice are general reactions which are shown by people all around the globe. Hence, option C is correct.
Other options, like option D, is not true because these emotional reactions are common and do not vary in people of different cultures.
Answer:
C: emotional reactions generally consistent across cultures
Explanation:
Edge 2020
According to the text, what happens when organisms cannot adapt to changes in their environment?
A. They move to another environment.
B. They risk dying out.
C. Nothing happens.
D. They wait for the environment to change again.
Answer:
The correct options are A) They move to another environment.
B) They risk dying out.
Explanation:
According to natural selection, only those organisms are able to live and survive in an environment which can adapt to the changes in an environment. Such organisms reproduce and pass on their characteristics to their offsprings.
Organisms which are not able to adapt to changes in an environment either migrate to other places or die as they are not able to survive by the changes being made.
If organisms can't adapt to environmental changes, they risk dying out, which can lead to extinction. Adaptation is key for maintaining internal stability and handling external changes.
Explanation:When organisms cannot adapt to changes in their environment, they risk dying out. The inability to adapt may lead to extinction, as has happened with the majority of species in evolutionary history. Adaptation is crucial for survival because it enables organisms to maintain their internal environments and respond to external changes. If a species develops a disadvantageous mutation, competing species that remain unchanged could become relatively better adapted without any change on their part. This concept reflects the importance of continuous adaptation just to maintain a species relative standing in its ecosystem.
Which big idea guiding Earth science relates most directly to the four spheres of Earth?
Earth's history
Earth in the solar system
the structure of the Earth system
constructive and destructive forces that shape Earth
Answer:C the structure of the Earth system
Explanation:
Answer:
the structure of the Earth system
Explanation:
Which of the following does a bacteriophage NOT have?
O
protein
O DNA
nucleus
none of the above
Bacteriophage doesn't have a nucleus.
Option C.
Explanation:Bacteriophage is a virus that is present in our surroundings. Its a phage virus that attacks bacteria and killing it. Bacteriophage has a tadpole like structure with a polygonal head and a neck and 6 tails. The polygonal head is formed of carbohydrates, along with the neck and tails. The head has inside it DNA that is its nucleic acid and genetic material. It's not enclosed in any nucleus. It has some proteins inside the head too.
The phage virus attaches itself with bacteria and drills the bacterial cell wall by the neck and pushes the genetic material inside as a mode of infection.
John James Audubon and Henry David Thoreau had an important influence over the ____
A. Formation of conservation organizations
B. Setting of standards for veterinary practice
C. Campaign to eradicate bioterrorism
D. Early development of vaccines
Answer:
B i think
Explanation:
John James Audubon and Henry David Thoreau had an important influence over the formation of conservation organizations.
Explanation:John James Audubon and Henry David Thoreau had an important influence over the formation of conservation organizations. Audubon, a renowned ornithologist, is considered one of the pioneers of modern environmentalism and his work helped raise awareness about the need to protect wildlife and their habitats. Thoreau, on the other hand, emphasized the importance of preserving nature and developed the concept of wilderness preservation, which inspired future conservation efforts.
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In a large new housing complex, many families do not practice water conservation. They take long showers over water their lawns, and wash their carefree
water treatment facility is old and was not designed to handle the increased amount of water, causing untreated sewage to be released into the environment. y
of pollution are demonstrated in this real world example?
Toxic
Sediment
Nutrient
Bacterial
Answer:
The correct option is D) bacterial
Explanation:
Waste water from domestic places when not disposed properly can lead to sewage in the lakes and rivers. This kind of sewage contains many bacteria and viruses which can cause dangerous diseases in humans and animals. E.coli, salmonella, cholera etc are some of the disease causing bacteria which can be originate from these places and cause a number of dreadful diseases. Hence, sewage from household should be properly disposed to avoid such circumstances to occur.
Answer:
Nutrient and Bacterial
Explanation:
Water treatment facilities can only treat a certain amount of. sewage each day. If too much water enters the facility excess untreated sewage will be released into the environment. Sewage containing human waste will cause both bacterial and nutrient pollution.
7. What is the probability of a homozygous recessive offspring?
Answer:
If two heterozygotes are crossed, the probability that an offspring will be homozygous recessive is 25% or 0.25. Homozygous dominant: 25% or 0.25. Heterozygous: 50% or 0.50.