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Related Questions
An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the rhythm of heart contractions the speed of blood flow through the blood vessels the amount of oxygen in the blood as it leaves the heart
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Answer:
the rhythm of heart contractions.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
An electrocardiogram (ECG) provides information about the rhythm of heart contractions.
Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
The rete testis Multiple Choice transports seminal fluid to the efferent ductules. receives sperm from the seminiferous tubules. is a venous network that cools the arterial blood traveling to the testis. is the site of spermiogenesis. is the nerve plexus that supplies the testis.
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Answer:
Receives sperm from the seminiferous tubules.
Explanation:
The rete testis is a set of tubules that transport the sperms from the straight seminiferous tubules, the last portion of the seminiferous tubules, to the efferent ducts. Then, the sperms go to the epididymis conduct. From there, they go to the deferent conduct, then to the ejaculatory duct, and lastly to the urethra.
Which pair shows the number of cells present both before and after
meiosis II?
1 and 2
2 and 4
1 and 4
4 and 4
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Two and 4 is a pair shows the number of cells present both before and after meiosis II.
What is meiosis?In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm).
Body cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent). The egg and sperm that combine during fertilization must be haploid, or having only one set of chromosomes, in order to maintain this state.
Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are the gametes. Nearly every human cell contains 46 chromosomes, 23 of which come from one of our parents and 23 highly similar chromosomes from the other parent.
Therefore, Two and 4 is a pair shows the number of cells present both before and after meiosis II.
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Plant stems can be ______, ______, thick,______, or _________.
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Answer:
Underground stem, Aerial stem, and subaerial stem.
Explanation:
Plant stems can be Underground stem, Aerial stem, and subaerial stem due to its presence and strength of the stem. Underground stem are thick stems that run below the ground surface. e.g rhizome. Aerial stems are thin stems that can not stand erect. Examples include watermelon and strawberry etc. Subaerial stems are very thin stems that do not rise up but grow just above the ground. for example, water plantain, flowering rush etc.
While tuning a guitar, you realize one of the strings is not the right thickness. The pitch needs to be higher in order for the guitar to be tuned properly, so you replace the string with the correct version. Thickness is not the only thing that has an effect on pitch. How tightly the strings are stretched is also a factor. This is why guitar strings are attached to knobs that can be tightened or loosened. If, after replacing the string, the pitch is a little too high, how should you turn the knob to make it right?
A. You should turn first one way, then the other.
B. You should turn the knob to loosen the string.
C. You should turn the knob to loosen the string.
D. You should turn the knob to loosen the string.
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Explanation:
The answer is c. you should turn the knob to loosen the string.
If having long fur helps a guinea pig survive, what
would you expect to see change in the population
as it evolves?
DONE
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In a population with long fur, there will be more guinea pigs than short fur in the given scenario.
What is trait?A trait, as it relates to genetics, is a unique feature of an individual.
If having long fur helps a guinea pig survive, we can expect the long-furred trait to become more common in the population as it evolves.
This is because guinea pigs with long fur would have an advantage in colder environments, allowing them to retain body heat more effectively and survive longer.
As a result, longer-furred guinea pigs are more likely to survive and reproduce, passing on their long-furred trait to their offspring.
As this process continues over many generations, the proportion of guinea pigs with long fur in the population will increase, while the proportion with short fur will decrease.
Thus, this can be expected to see change in the population as it evolves.
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i will give brainliest pls help !!Drag each tile to the correct box.
Arrange the tiles to show the sequence of the steps in a scientific investigation.
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Order:
Make an observation
Ask a question
Make a hypothesis
Test the hypothesis
Analyze the results and make conclusions
Communicate the results
Have a great day!
NO LINKS PLEASE, NEED ANSWER ASAP
What will happen to a plant cell placed in distilled water?
The cell will become flaccid due to the cell membrane.
The cell will become turgid due to the cell wall.
The cell will lysis due to the cell membrane.
The cell will burst due to the cell wall.
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Answer:
the cell will become turgid due to tge cell wall
Explanation:
when a plant cell is placed in distilled water the water will move in the solution inside the cell is hypertonic to the distilled water serrounding the cell but it will not burst it producr turgor pressure keeping the plant upright
if a plant cell is placed in distilled water, and distilled water has a very low concentration of solutes the cell will become turgid due to the cell wall, hence option B is correct.
How distilled water affect the plant cell?This is because distilled water has a very low concentration of solutes and a high concentration of solvent, making it a hypotonic solution in comparison to the intracellular environment.
To put it another way, we can say that the solute concentration of When a plant cell is placed in distilled water, it becomes turgid.
This is due to the fact that it osmotically absorbs water from the hypotonic distilled water, causing the cytoplasm of the plant cell to enlarge and firmly press up against the cell wall.
Therefore, distilled water has a very low concentration of solutes, so cells will become turgid.
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The last 4 molars in our mouth are called
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What is the dewpoint temperature when the
relative humidity is 30% and the air
temperature is 20°C?
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Answer:
Dew Point Temperature: 1.9°C or 35.4°F
The dewpoint temperature when the relative humidity is 30% and the air temperature is 20°C is determined as 2°C.
What is dew point temperature?The dew point temperature is the temperature at which air must be cooled to become saturated with water vapor.
The dew point temperature is calculated as follows;
[tex]N = \frac{[ln(R_H/100) + [\frac{17.27T}{237.3 + T} ]}{17.27} \\\\N = \frac{[ln(30/100) + [\frac{17.27\times 20}{237.3 + 20} ]}{17.27}\\\\N = 0.00807\\\\D = \frac{237.3N}{1-N} \\\\D = \frac{237.3 \times 0.00807}{1-0.00807} \\\\D = 1.93 ^0C \ \approx 2\ ^0C[/tex]
Thus, the dewpoint temperature when the relative humidity is 30% and the air temperature is 20°C is determined as 2°C.
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Definition: This is the type of growth experienced by a population that increases at a rate proportional to
its size. The larger the population gets the faster it grows.
Example: Microorganisms in a culture dish until the food is exhausted.
Term: Type term here
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Answer: sounds like an exponential growth
The subject of a source can best be described as themain topic or area of concern.most important idea in the text.tendency to view something in a certain way.way the source wants people to feel or think.
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Answer:
main topic or area of concern.
Explanation:
An information source can be defined as a system or medium through which informations, knowledge and ideas may be gotten and used by an individual. An information source can either be a primary or secondary source of information. The source options for informations are television, radio, web, newspapers, journals, magazines etc.
The four criteria used to evaluate source options are;
1. Accuracy: the user of this source of information should check if the data presented are accurate and credible. At this point, you should ensure that the informations provided are well researched and cited for verification.
2. Authority: you should endeavor to know who the author and publisher of the information source is. Also, it is important to know their qualifications.
3. Currency: it is necessary to know when the information source was created or produced by the author. Also, the user of this data should verify when it was published (in the case of a book) or if it requires an update (in the case of a website). Hence, the information source should be timely.
4. Objectivity: ensure that the source of information is unbiased, reliable, and should not only contain opinions but facts.
Basically, the subject of a source can best be described as the main topic or area of concern.
The circulatory aids the digestive system by....
A. Moving oxygen around the body
B. Taking nutrients to cells in different parts of the body
C. Creating electrical currents used to move messages around the body
D. Providing support and structure to the body
(I’ll give points + brainalist for the correct answer)
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Answer:
Jacksom you wanna zo.o.m?
~Janiyha
¿Qué son los hongos?
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Answer:
Los hongos son microorganismos eucariontes, tanto uni como pluricelulares-heterótrofos.
what is the process of reproduction between human and animals?
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Humans ARE animals so the same system applies to all these organisms.
Each individual starts as a single cell - an ovum - with a full set of the species' chromosomes/DNA - in humans always 22 and an X.
Animal species such as cats and dogs have their own set, unique to their species, with the ovum always found in the female body, stored in the
Is this statement true or false?
Areas with mountains are warmer than other areas at the same latitude.
true
false
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Answer:
Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. A coastal climate is usually mild. ... Farther inland, the climate is influenced by cold or hot air from the land.
Explanation:
hope this helps true
false
hope this helps
which choice would most likely reduce the amount of energy resources a person uses
A. shopping with plastic bags rather than reusable bags
B. riding bicycle instead of driving a car
C. drinking bottled water instead of tap water
D. buying new clothes instead of used clothes
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how do forest fires affect abiotic factors and biotic factors
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Fire is not a living thing, and abiotic factors are the factors in an ecosystem that are not-living. Therefore, fire is an abiotic factor in an ecosystem, though is rarely mentioned.
A colony of bees was observed feeding on nectar while pollinating plants. What type of ecological relationship exists between the bees and the plants?
1 Parasitism 2 Predation
3 Mutualism 4 Commensalism
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Answer:
mutualisim
Explanation:
The bees benefit from the flower's nectar and the flowers benefit because they are being pollinated
hope this helps
True or False: Purine is connected to pyrimidine using oxygen bonds.
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Answer:
False
Explanation:
In DNA double helix molecule, there are four types of nitrogenous bases: adenine, guanine, cytosine and thymine. Purines (i.e., adenine, guanine) and pyrimidines (i.e., cytosine and thymine) hold DNA strands together via hydrogen bonds. In base pairing, guanine always pairs with cytosine through 3 hydrogen bonds, while adenine always pairs with thymine by 2 hydrogen bonds. Hydrogen bonds are a type of dipole–dipole interaction where a hydrogen atom is covalently bonded to a very electronegative atom (e.g., Nitrogen or Oxygen).
Helppppppppppppppppp
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I believe it's (C). A is DNA which is not enclosed in a nucleus ,as in prokaryotic cells
5. During which month does LA experience the most precipitation? The least?
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Los Angeles, United States of America. Los Angeles has dry periods in May, June, July, August and September. On average, January is the most rainy. On average, July has the least rainy days.
Compression of mortality is the extent to which an organ can preserve essentially normal function despite decreasing cell number or cell activity. Group of answer choices True False
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Answer: False
Explanation:
Compression of mortality refers to the reduction over time with regards to the variance of the age of people at death.
The extent to which the organ can help in preserving normal function despite the fact that there's a reduction in the number or cell activity is referred to as compression of morbidity.
When morbidity is compressed, it should be noted that individuals can be expected to live healthier and longer as well.
Therefore, the statement is false
Hemlocks are a common type of tree in the northern forests of the United States. In studying one forest, a forester noticed that mature hemlocks were abundant but there were very few young hemlocks. She wondered why there were so few young hemlocks. By reading the records that other foresters in that area had kept, she learned that the population of deer living in the forest had doubled in the last five years. By reading studies on forests that other scientists had performed, she also learned that deer in similar forests like to eat young hemlocks and the young trees of other species.
Which statement is a hypothesis that would best address the question, "Are deer eating the young hemlocks and preventing them from growing?"
Deer are eating young hemlocks.
Deer will eat young hemlocks, but not old hemlocks.
If deer are eating young hemlocks, then keeping deer away from the young trees will allow the trees to grow.
If the hemlocks are tasty to the deer, the deer will eat them.
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Answer:
It's the third answer, which is the only one written as a proper hypothesis, hope this helps
How do you think different people’s chromosomes would compare
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Answer:
Most humans have 46 chromosomes of approximately the same size and shape. The only major difference between different people's chromosomes can be found in the sex chromosomes. ... A karyotype is a picture showing a cell's chromosomes grouped together in pairs.
Explanation:
7. What is the relationship between the amount of greenhouse gasses in the atmosphere and the average global temperature
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Answer:
More heat in the atmosphere, less absorption of greenhouse gases on Earth, and solar and volcanic activity may contribute to an increase in global average surface temperatures.
Explanation:
describe how the force of gravity from Earth could affect nearby Apollo asteroids and explain how the effect of Earth’s gravity could change the orbital motion of an Apollo asteroid.
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Gravity pulls objects toward Earth at a rate of 9.8 m/s2. Weight is the result of gravity's pull on a mass on Earth's surface.
The force of gravity from the Earth could affect nearby the Apollo asteroids and this gravitational force is responsible for pulling the objects towards itself which could change the orbital motion of an Apollo asteroid.
What is the Apollo asteroid?Apollo asteroids are also called as the near-earth asteroids. These are a major source of the meteorites which occasionally fall to the earth. Asteroids with the orbits that approach the earth, are passing inside the perihelion of the Mars, and these are called as Amors. Those that cross the orbit of the earth are called as the Apollo asteroids.
Gravitational force is the force which pulls all the objects in the universe towards each other on the planet and in its orbit. On the Earth, gravity pulls all the objects downward towards the center of the planet.
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A quote from Carl Sagan " The history of life can be described as the gradual dominance of brains over genes" WHAT DID HE MEAN BY THIS?
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Which of the following statements describes an example of phenotypic plasticity?
A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony.
B) Desert locusts with the same genotype develop into solitary or swarming forms depending on the density of individuals in their surroundings.
C) Two stems cut from a single rose plant develop red flowers, despite one being planted in full sun and the other in shade.
D) The common hawk-cuckoo and the shikra are types of birds with similar feather patterns and behaviors despite genetic differences.
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Explanation:
A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony
Which type of base is shown? How can you tell?
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Answer:
The correct answer is - purine nitrogenous base (adenine).
Explanation:
The base given in the diagram in the image has two rings attach with the pentose sugar which is attached to the phosphate, which means it is the diagram of nucleotide. In this nucleotide base can be either purine or pyrimidine.
Pyrimidines have a single ring structure, whereas purines have 2 ring structures. Adenine and guanine are purines with two ring structures whereas cytosine and thymine are pyrimidines as they have one ring structure. Adenine contains an amine group on C6, and a double bond between N1 and C6.