Which of the following is not a function of the circulatory system? *
1 point
To pump blood throughout the body
to transport waste away from cells
to use chemical signals to send messages
To transport oxygen to the rest of the body
Answers
Answer:
To use chemical signals to send messages
Explanation:
Sending messages with the use of chemical signals is not a function of the circulatory system.
Instead, it is a function of the endocrine system, which uses chemical messages called "hormones."
The other 3 choices are functions of the circulatory system. This system pumps blood throughout the body, removes waste products, and also carries oxygen throughout the body.
The circulatory system performs several important functions in the body. However, out of the options provided, the function that is not associated with the circulatory system is "to use chemical signals to send messages."
Breakdown of the functions of the circulatory system:
1. To pump blood throughout the body: The heart, which is a key component of the circulatory system, pumps oxygenated blood from the lungs to the rest of the body and returns deoxygenated blood back to the lungs for oxygenation. This continuous circulation of blood ensures that all cells in the body receive the necessary oxygen and nutrients.
2. To transport waste away from cells: The circulatory system also plays a vital role in removing waste products generated by cells. Carbon dioxide, which is a waste product of cellular respiration, is transported by the circulatory system to the lungs for elimination through exhalation. Other waste products are carried by the circulatory system to the appropriate organs for processing and elimination, such as the kidneys for urine formation.
3. To transport oxygen to the rest of the body: Another crucial function of the circulatory system is to deliver oxygen to the body's tissues. Oxygen is necessary for cellular respiration, the process by which cells convert glucose into energy. The circulatory system transports oxygen-rich blood from the lungs to the body's cells, allowing them to carry out their metabolic functions.
In summary, the circulatory system does not use chemical signals to send messages. Instead, it primarily functions to pump blood throughout the body, transport waste away from cells, and transport oxygen to the rest of the body.
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Related Questions
An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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1. The cestodes or tapeworms have a complex life cycle in which____ are released and pass out of human host in feces. Intermediate host like farm animals become infected via contaminated food and-or water. Humans become host again by consuming ____.
A. proglottids; larvae in undecooked meat
B. fertilized eggs; mature worms in undercooked meat
C. larvae; mature worms in undercooked meat
D. Proglottiids; mature worms in undercooked meat
Answers
Tapeworms have a life cycle in which proglottids are released in feces, farm animals become infected by consuming contaminated food or water, and humans become hosts again by consuming undercooked meat containing larvae. The correct answer to the question is: A. proglottids; larvae in undercooked meat.
The cestodes, also known as tapeworms, have a complex life cycle. In this life cycle, proglottids or segments of the tapeworm are released from the human host and passed out in feces. These proglottids contain fertilized eggs. The intermediate host, such as farm animals, can become infected by ingesting contaminated food or water that contains these eggs. Once inside the intermediate host, the eggs develop into larvae.
Humans can become hosts again by consuming undercooked meat that contains the mature worms. When a person consumes the undercooked meat, the larvae from the meat will develop into mature worms inside their intestines, completing the life cycle of the tapeworm.
The proglottids, containing the fertilized eggs, are released from the human host and passed out in feces. The intermediate host, such as farm animals, become infected by consuming contaminated food or water that contains these proglottids. Humans become hosts again by consuming undercooked meat that contains the larvae. The larvae then develop into mature worms in the human intestines.
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Which plant cell structures capture sunlight to produce sugars? a. vacuoles b. ribosomes c. mitochondria d. chloroplasts
Answers
function of cell membrane in muscle cells
Answers
Answer: The sarcolemma generally maintains the same function in muscle cells as the plasma membrane does in other eukaryote cells. It acts as a barrier between the extracellular and intracellular compartments, defining the individual muscle fiber from its surroundings
Explanation:
The fossil record is a testament to extinct fauna no longer present on Earth. Certain areas of the planet have always had high species diversity (evident from fossils and catalogs of current species diversity). Which of the processes listed likely contributed to the patterns of animal diversity we see
Answers
Answer:
The processes that likely contributed to the patterns of animal diversity we see is LOCAL AND GLOBAL EXTINCTION EVENTS.
Extinction event is when a large number of multicellular organisms of same species die within a short period of time reducing the number of such organisms in circulation in the ecosystems.
Extinction event can be (all over the world) or local (within a speculated geographic location).
Causes of extinction includes; population growth,habitat loss,over consumption, population and introduction of new species.
helppp, i need this asap
Answers
A determined the gender
B and D is part of mitosis not meiosis
The diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
What exactly is the significance of the cross-over in meiosis?Crossing over is important in meiosis because it occurs when homologous chromosomes exchange genetic material, resulting in the formation of new combinations of genetic information and increasing genetic diversity in the population. As a result, evolution occurs, and unique offspring are produced.
Hence, the diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
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Different microscopic organisms cause different diseases. When a dangerous microscopic organism is transferred from one person to many people, the disease it carries will spread. Why is this considered a theory instead of a hypothesis or a law? It is a statement of fact about how nature works instead of an explanation. It provides an explanation for many observations and accepted hypotheses. It describes how to test a possible explanation of one specific relationship. It has not changed over time even though new technology has been developed.
Answers
Answer:
The correct answer is - it provides an explanation for many observations and accepted hypotheses.
Explanation:
The theory is well tested or substantiated explanation for the observation of the natural phenomenon, that included or incorporated various laws, hypothesis, or facts.
It is not just a possible explanation but a well-tested and proven explanation with the help of scientific experiments in a scientific method.
Thus, the correct answer is - it provides an explanation for many observations and accepted hypotheses.
Answer:
Explanation:
the answer is B. for a short answer
Which chordate group has all four key chordate characteristics as an adult, not just as an embryo?
a)lancelets
b)tunicates
c)frogs
d)humans
Answers
The chordate group that has all four key chordate characteristics as an adult, not just as an embryo, is (a) lancelets.
Lancelets, also known as amphioxus, are small marine animals that possess notochord, dorsal nerve cord, pharyngeal slits, and a post-exitway tail throughout their lives. These characteristics are fundamental features of chordates, and the presence of these traits in lancelets qualifies them as true chordates. In contrast, tunicates, also known as sea squirts, possess these characteristics only during the larval stage, and humans and frogs have modified or lost some of these traits during their development.
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20. (p. 74, Table 3) Activity can reduce the risk of colon cancer because it
A. lowers hormone levels.
B. speeds movement of food through the digestive system.
C. lowers body fat levels.
D. increases immune system function.
Answers
The correct statement is "Speeds movement of food through the digestive system." The correct answer is B.
Physical activity can reduce the risk of colon cancer by speeding up the movement of food through the digestive system.
This means that harmful substances have less contact time with the lining of the colon and rectum, reducing the risk of cancer.
Exercise also helps to maintain a healthy weight, which is another factor in reducing the risk of colon cancer.
While lowering hormone levels and body fat levels may also have some impact on reducing the risk of colon cancer, these factors are not as directly related to the movement of food through the digestive system as physical activity is.
Additionally, there is some evidence to suggest that exercise can boost the immune system, but this is not considered to be the primary way in which it reduces the risk of colon cancer. Therefore, the correct answer is B.
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The per capita ecological footprint is the total ecological footprint for a given country or area
O True
O False
Answers
The per capita ecological footprint is the total ecological footprint for a given country or area is false and is therefore denoted as option B.
What is Ecological footprint?This is referred to as the amount of land which is required to ensure that there is adequate use and sustainability of the resources which are present in area at a given period of time.
The per capita ecological footprint is the average ecological footprint for a given country or area and not the total ecological footprint which is therefore the reason why false was chosen as the most appropriate choice.
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2
2.When chemical bond are formed
energy is released.
True
False
Answers
Answer:
true
have a nice day and good dayEnzo works in the primate exhibit in a city zoo. Recently, the zoo has installed a wire tunnel that hangs through the trees and eventually ends in an extra habitat on the other side of the park. Since these have been opened, the two male orangutans, Kwame and Ikon, have gotten into fewer fights. What conclusion would this MOST likely cause Enzo to reach about the primates?
A.
Having more room to spread out has decreased irritation between the orangutans.
B.
The new environment has fooled Kwame and Ikon into thinking they are in the wild.
C.
Kwame and Ikon are concerned that they may be separated if they do not behave.
D.
The orangutans are distracted by more tourists because of the new exhibit.
Answers
Enzo's conclusion regarding the primates is most likely to be that they are less irritable now that they have more habitat to spread out.
The construction of the wire tunnel that runs through the trees and connects to a second habitat on the opposite side of the park gives the primates such as orangutans greater room to roam and explore, which can lessen the likelihood of fights and violent behavior.
Consequently, it is reasonable to infer that the greater space and more habitat offered to them are the causes of the decrease in conflicts between Kwame and Ikon.
Therefore, the correct option is A.
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population sizes of three African animals in 1990 and in 2000.
Answers
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetah.
Limiting factors are those factors in the ecosystem which can limit the growth of population of a species in an ecosystem. Predation and competition are two limiting factors in the ecosystem that can decrease or extinct the population of a species. Predation is a limiting factor in which predatory organisms are dependent upon a prey organisms. This is natures way of limiting the surplus growth of prey population and to maintain a balance in ecological community. Competition is a limiting factor in which one or more same or different type of organisms compete for the same resource in an ecosystem. The one which is more competitive will derive those resources other than the one which is less competitive.
According to the given data, it is evident that the population decline in predator cheetah and lion populations because of decline in zebra population but the decline in cheetah population is more than that of lion. It explains the fact that lion is more competitive than cheetah in deriving the food which is already limited. Therefore, lion outcompete cheetah.
what male bird is solely responsible for incubation after the eggs are laid?
Answers
The male bird that is solely responsible for incubation after the eggs are laid is called the "male incubator" or "male brooder".
In biology, incubation refers to the process of keeping eggs warm under controlled conditions to facilitate the development and hatching of the embryos. Many animals, such as birds and reptiles, incubate their eggs by sitting on them or by creating a warm nest. This controlled environment ensures optimal temperature and humidity levels for successful embryonic development.
Business Incubation: Business incubation refers to programs and facilities that support the development of early-stage companies. Business incubators provide startups with resources, mentoring, office space, networking opportunities, and other support services to help them grow and succeed. The goal of business incubation is to nurture and accelerate the growth of new businesses until they become financially viable and independent.
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The reactants for cellular respiration area. glucose and ATP.b. water and ATP.c. oxygen and ATP.d. glucose and oxygen.e. carbon dioxide and glucose.
Answers
Cellular respiration is a very important process for organisms because it is from it that part of the energy necessary for survival is generated.
In respiration, we consume oxygen and glucose and form carbon dioxide, energy, and water as products.
Therefore, we can say that the reactants of cellular respiration are oxygen and glucose. Therefore, option "D" is the answer.
Gazelles are adapted to run very quickly over large expanses of open land because they live in areas without many
trees. They also have wide, flat teeth that are adapted to chew grasses.
Where are these organisms adapted to live?
temperate rain forests
tropical rain forests
O deserts
savannas
Answers
Answer:
Savannahs
Explanation:
Savannahs are usually large areas of open land with few trees. This area is different from deserts because they receive more rain which allows grasses to grow, unlike desserts.
Which of the following options is correct?
The _____ glands in the axilla become active at the time of puberty.
A. ceruminous
B. apocrine sweat
C. merocrine sweat
D. sebaceous
E. axillary
Answers
The apocrine sweat glands in the axilla become active at the time of puberty.
Correct option is B.
Apocrine sweat glands are responsible for the secretion of sweat that appears to be thicker than that of normal merocrine sweat, containing a higher concentration of lipids and proteins. These sweat glands are primarily found in the axilla, between the ribs, and in the genital region of the body. During puberty, the apocrine sweat glands become very active, leading to a great increase in sweat production.
As a result, people often experience an increase in body odor during this developmental stage. This phenomenon is coupled with the development of hair in the axilla as the sweat will often become trapped in this area and create a smell as it breaks down. As the individual matures, these odor problems often become less of an issue.
Correct option is B.
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draw a cell in each of the following phases. be sure to represent the major events of each phase and label structures. - prophase - metaphase - prometaphase - anaphase - telophase
Answers
The stages of mitosis
1. Chromatin condense to form chromosomes : Prophase It is the first stage in M phase. Starting of mitosis occur by condensation of chromatin.
2.Chromosome aligne in centre of cell: metaphase.During this stage centromere attaches to kinetochore and chromosome aligned in centre to form metaphase plate.
3. Longest part of cell cycle : Interphase.
It include G1, S and G2. It long for 23 hr in humans and actual cell division occur by 1 hr.
4. Nuclear envelope break down : Prophase.
During Prophase nuclear membrane disintegrate, cell organelles disappeare, chromosome condensation occur.
4. Cell divided in to two daughter cells : Cytokinesis.
During this stage cell divides by membrane formation either centrifugally or centripetally.
5. Daughter chromosome arrive at the poles : Telophase.
Chromosome reaches at poles and spindle fibers disappeare. Nuclear membrane and cell organelles appear.
6. Chromatids are pull apprt. : Anaphase.
Sister chromatids pull apart by spindle fibers and move this chromatids to Poles.Centromere divides in to two.
IDENTIFICATION OF STAGE OF CELLS.
1. Metaphase
in this stage the chromosomes are aligned at the center and form a metaphase plate. Spindle fibers are attached to the centromere.
2. Telophase
In this phase chromosome reach at poles and nuclear membrane starts appearing. Spindle fibers disappear.
3. Prophase
First stage of division where nuclear membrane disintegrate, spindle fibers starts appearing. Chromatin condensed to become distinct chromosomes.
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a person who is homozygous recessive at a locus has
Answers
A person who is homozygous recessive at a locus has two copies of the same recessive allele at a particular locus. Homozygous recessive individuals will display the recessive phenotype.
If the dominant allele is present, homozygous recessive people will not show the dominant phenotype.
In genetics, a locus is a specific position on a chromosome that corresponds to a particular gene. Alleles are different versions of the same gene that exist at a specific locus. To put it another way, a gene locus is a specific position on a chromosome where a particular gene is located.In humans, some disorders are recessive. Cystic fibrosis is an example of a recessive disease. The person with the recessive allele must inherit two copies of the recessive allele to exhibit the disease. One copy of the gene is inherited from each parent.
As a result, both parents must pass on the recessive gene for their child to be affected by the disease.
The homozygous recessive individual, in the case of cystic fibrosis, has two copies of the recessive allele at the cystic fibrosis gene locus.
Therefore, they will display the disease's symptoms. The person who is homozygous recessive for this allele, which means they have inherited two copies of the recessive allele at the cystic fibrosis gene locus, will have the disease.
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Lack of medical knowledge
Answers
What happens to DNA once transcription is done?
O It is destroyed.
O It makes more copies of itself right away.
O It zips back up until it is necessary to transcribe the gene again.
O It mutates.
Answers
Answer:
it makes more copies of itself right away
Explanation:
transcription is the process by which the information in a strand of DNA is COPIED into a new molecule of the messager RNA
When DNA transcription is done, it zips back up until it is necessary to transcribe the gene again (option C)
What is DNA transcription?The process of DNA transcription involves copying the information, from DNA into RNA.
Once transcription is complete the DNA molecule returns, to its double helix structure. This occurs because DNA is highly stable and doesn't require transcription. The DNA molecule is transcribed again solely when the cell requires production of a protein.
With the above information, we can conclude that when DNA transcription is done, it zips back up until it is necessary to transcribe the gene again (option C)
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The wobble effect is supported by tRNA molecules because
charging of the tRNA is fallible
anticodons can contain unusual nitrogenous bases
the EPA sites are structurally distinct
stem loop structure is maintained by double stranded RNA
Answers
The wobble effect is supported by tRNA molecules because anticodons can contain unusual nitrogenous bases.
This allows for a level of flexibility in the base pairing between the codon on the mRNA and the anticodon on the tRNA. Additionally, the stem loop structure is maintained by double stranded RNA and the EPA sites are structurally distinct, but neither of these factors directly support the wobble effect.
Charging of the tRNA is fallible, meaning that errors can occur during the process of adding an amino acid to the tRNA, but this is not directly related to the wobble effect. This allows for a more flexible pairing between the codon on the mRNA and the anticodon on the tRNA, accommodating for some degree of mismatch at the third position of the codon.
This flexibility contributes to the wobble effect, which enables a single tRNA molecule to recognize more than one codon. Hence, The wobble effect is supported by tRNA molecules because anticodons can contain unusual nitrogenous bases.
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How do female-specific needs in the marketplace push
innovation by women entrepreneurs?
Answers
The female-specific needs in the marketplace push innovation by women entrepreneurs by inspiring them to create products or services that meet those needs.
Women entrepreneurs recognize that female consumers may have unique requirements, and they want to provide solutions that cater to those needs. Therefore, they come up with innovative ideas and create businesses that offer products or services that solve these problems. They work towards creating innovative solutions for women.
The female-specific needs that women entrepreneurs address may include products that cater to female hygiene, safety, or beauty. For instance, women’s clothing and shoes should be comfortable and suitable for various activities. Women need to feel secure while engaging in outdoor activities, such as running or hiking. Female-specific needs can also include products that cater to pregnant women, such as prenatal vitamins or nursing bras.
In conclusion, female-specific needs in the marketplace push innovation by women entrepreneurs by inspiring them to create products or services that meet those needs. They recognize that female consumers may have unique requirements, and they want to provide solutions that cater to those needs.
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Which of the following is TRUE about-
primary succession?
A. Primary succession is uncommon because it occurs on
new land.
B. Primary succession only happens when there is a forest
fire.
C. Primary succession only occurs if humans have
disturbed the ecosystem.
Answers
Answer: A. Primary succession is uncommon because it occurs on new land
Explanation:
i got it right
The world's food supply is influenced by social disruptions and attitudes, which directly affect which two disciplines?
A) wildlife and air pollution
B) the ecology of wildlife and the migration patterns of birds
C) the environment and agriculture
D) the environment and cultures
( NOT b )
Answers
what are two planets that humans have explored with space probes? what do scientists hope to learn from these missions?
Answers
Answer:
Mars/Saturn
Scientists hope to learn if and why these planets are uninhabited in contrast to earth, which is filled with vibrant species of flora and fauna, and if these planets may someday be able to be inhabited.
ATP * 1 point contains five phosphate groups. is essential for a cell to perform all the tasks necessary for life. is found only in bacteria. All of the above
Answers
Answer:
is essential for a cell to perform all the tasks necessary for life.
Explanation:
ATP is essential for a cell to perform all the tasks necessary for life.
ATP is known as Adenosine Triphosphate (three, not five, phosphate group) and it is the energy currency of all living organisms. All the processes necessary for sustaining life (e.g respiration) require energy in the form of ATP.
It has three phosphate groups, not five.
It is found in all living organisms, not just bacteria.
how long does it take blood to circulate through the body
Answers
Answer:
1 minute
Explanation:
It takes one minute for blood to circulate from the heart.
The average adult's heart beats 100,000 times per day.
simple faecal preparation and efficacy of frozen inoculum in faecal microbiota transplantation for recurrent clostridium difficile infection – an observational cohort study
Answers
Simple faecal preparation and the use of frozen inoculum in faecal microbiota transplantation (FMT) have shown efficacy in treating recurrent Clostridium difficile infection (CDI) based on an observational cohort study.
In a recent observational cohort study, researchers investigated the efficacy of frozen inoculum in faecal microbiota transplantation (FMT) for treating recurrent Clostridium difficile infection (CDI). The study found that a simplified faecal preparation process, combined with the use of frozen inoculum, resulted in positive outcomes for patients with recurrent CDI.
The simplified faecal preparation involved reducing the complexity and cost of the traditional FMT process. This approach aimed to make FMT more accessible and feasible for widespread use. By using frozen inoculum, the study eliminated the need for fresh donor samples, which can be logistically challenging to obtain and process. The frozen inoculum preserved the microbial diversity and therapeutic potential of the faecal matter, making it an effective alternative.
The study's findings suggest that the simplified faecal preparation and use of frozen offer a promising and practical approach to FMT for recurrent CDI. Further research and clinical trials are necessary to validate these results and optimize the protocol for implementation on a larger scale.
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Which of the following are proteins produced from recombinant DNA?
A. Restriction enzymes
B. Sticky ends
C. DNA libraries
D. Recombinant proteins
Answers
Answer:
A. Restriction enzymes
Explanation:
PENN
The proteins which are produced from recombinant DNA are known as Restriction enzymes. Thus, the correct option for this question is A.
What are Restriction enzymes?Restriction enzymes may be defined as the types of enzymes which are responsible for cutting down DNA into numerous fragments. These types of enzymes are also known as molecular scissors.
Restriction enzymes are present in the bacteria to provide a type of defense mechanism called the restriction modification system.
The first restriction endonuclease is known as the Hind II, which was isolated by Smith, Wilcox, and Kelley in 1968. These proteins are definitely synthesized by the methodology of recombinant DNA.
Therefore, restriction enzymes are proteins that are produced from recombinant DNA. Thus, the correct option for this question is A.
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