Answer:
They were introduced by humans
Explanation:
I attached a PDF document, just take a part of it that seems to work the best, and put it through a paraphrasing tool so it doesn't get flagged for plagiarism
Compare the energy values of a carbohydrate molecule versus a fat molecule.
Answer:
A fat molecule is stored with a lot of energy where as a carbohydrate molecule is a long chain of carbon atoms.
Carbohydrates and fats are nutrients which provide energy to the body and since calories(kilocalorie) tell how much energy a molecule of a nutrient contain, We can compare their energy values by first changing to kilocalorie.
Now, 1 gram of Carbohydrates contain 4 kilo calories while 1 gram of fat contains 9 kilo calorie of energy.
Let us consider a piece of bread containing
20g of carbohydrate molecule and
14g of fat molecule.
We will see that
carbohydrate will have 20 x 4 =80kcal and
fat will have 14 x 9=126kcal
Even with the carbohydrate having more mass than Fat, Fat ended up havng more energy value than it.See here for related answer: https://brainly.com/question/2006114
Where would a park ranger most likely tell hikers and campers not to build a campfire?(1 point)
in areas with cold temperatures and frozen ground
in areas with high winds and drought
in areas where there are clouds and rain is falling
in areas where there is lots of sand and little vegetation
Scientists can help determine areas likely to have wildfires by using satellites to figure out much humidity is in the air. What does humidity measure?(1 point)
the types of clouds found in the air
the amount of water vapor in the air
the temperature of the air
the speed of wind caused by the air
A group of campers want to ensure they have a safe campfire, reducing the chances for it to spread into a wildfire.
What should they do to minimize the risk of the campfire causing a wildfire?
(1 point)
keep buckets of sand nearby in case the fire spreads
remove any dried leaves or sticks from areas around the fire
have campers wake up to check the fire every five hours at night
have several small campfires in the same area
One way to limit the spread of wildfires is to create a defensible space. What is a defensible space?(1 point)
a fire set on purpose to clear land and remove dead vegetation
creating a path in the woods that leads out of a wildfire
clearing vegetation and other materials that could catch fire away from buildings
an area with stored water to fight wildfires
Wild fire refers to a fire that can spread speedily if not controlled.
What is temperature?Temperature refers to the degree o hotness or coldness of a body. We shall now answer the questions individually.
1) A park ranger would most likely tell hikers and campers not to build a campfire in areas with high winds and drought because of the possibility of a wild fire.
2) The humidity measures the amount of water vapor in the air.
3) In order to minimize the possibility of the spread of fire, they must remove any dried leaves or sticks from areas around the fire.
4) A defensible space is creating a path in the woods that leads out of a wildfire.
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This part of a reptile brain is enlarged and controls muscle movement as well as interpreting sensory information
Animalia
Celebrum
Cerebrum
motor nerves
The cerebrum is an enlarged and highly developed part of the reptile brain. It plays a vital role in controlling muscle movement and interpreting sensory information.
With its expanded size, the cerebrum exhibits increased complexity in reptiles compared to lower vertebrates. It is responsible for voluntary motor control, allowing reptiles to exhibit precise and coordinated movements. Additionally, the cerebrum is involved in processing sensory input from various sources, including vision, hearing, and touch.
This sensory information is integrated and interpreted by the cerebrum, enabling reptiles to perceive and respond to their environment effectively. Furthermore, the cerebrum is associated with higher cognitive functions like learning, memory, and decision-making, contributing to the overall behavioral complexity observed in reptiles.
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A researcher finds an embryo of an unknown animal. By which measure could she determine whether the organism is a protostome or deuterostome
A researcher found the fetus of an unknown animal. By measuring the number of germ layers in an embryo it can be determined whether an organism is a protostome or a deuterostome. Here option B is correct.
The measure that could be used to determine whether an unknown embryo is a protostome or deuterostome is the number of germ layers in the embryo. This is because protostomes and deuterostomes have different patterns of embryonic development, which are reflected in the number of germ layers they possess.
Protostomes typically have three germ layers: the ectoderm, mesoderm, and endoderm. Deuterostomes, on the other hand, have four germ layers: the ectoderm, endoderm, mesoderm, and an additional layer called the archenteron.
During embryonic development in protostomes, the blastopore (the opening of the developing digestive system) develops into the mouth, while in deuterostomes, it develops into the anus. This difference in development is reflected in the number of germ layers, with deuterostomes having an additional layer that gives rise to the lining of the digestive tract.
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Complete question:
A researcher finds an embryo of an unknown animal. By which measure could she determine whether the organism is a protostome or deuterostome
A. The size of the embryo
B. The number of germ layers in the embryo
C. The presence or absence of a notochord in the embryo
D. The type of feeding mechanism used by the embryo
Space waste causes very little damage to space shuttles and the Space Station when they collide. true or false can yall help me fast please
False. Space waste, also known as space debris or space junk, can cause significant damage to space shuttles and the International Space Station (ISS) when they collide. Although space is vast, the increasing amount of debris in Earth's orbit poses a threat to these spacecraft.
The primary reason behind the potential damage is the high velocity at which space debris travels. Objects in low Earth orbit (LEO) can move at speeds up to 28,000 km/h (17,500 mph). Even small pieces of debris, such as paint flecks or tiny metal fragments, can cause significant damage to spacecraft when they collide at these speeds. This damage can range from minor surface abrasions to punctures in spacecraft structures, solar panels, or windows.
To mitigate the risk of collision, the ISS and other spacecraft use a combination of tracking systems, shielding, and evasive maneuvers. Ground-based radar and telescopes track larger debris, allowing the ISS to adjust its orbit to avoid potential collisions. Additionally, the ISS and some spacecraft have Whipple shields, a layered shielding system that helps protect them from micrometeoroids and space debris.
In conclusion, it is false to say that space waste causes very little damage to space shuttles and the Space Station when they collide. The high-speed collisions can result in significant harm to spacecraft, which is why various protective measures and tracking systems are in place to minimize the risk.
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This chart shows the volumes of four different objects.
A 4-column table with 2 rows titled volumes of four objects. The first row has entries Object 1, Object 2, Object 3, Object 4. The second row has entries 6 centimeters cubed, 8 centimeters cubed, 3 centimeters cubed, 14 centimeters cubed.
If the objects all have the same mass, which object is the most dense?
Object 1
Object 2
Object 3
Object 4
Object 3 is the most dense.
Density ρ is directly proportional to the mass m and inversely proportional to the volume v, i.e.
ρ= m/v
This implies that a body's density will decrease as its volume increases. The object with smallest volume will therefore be the most dense, given that the four objects have the same mass m but varied volumes.
Object 1:
ρ1=m/6= 0.16m
Object 2:
ρ2=m/8= 0.125m
Object 3:
ρ3=m/3= 0.33m
Object 4:
ρ4=m/14= 0.071m
Therefore, object 3 is the most dense.
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The object 3 is the most dense among all of the objects when all objects have same mass.
How to find which object is denser among all the objects?Using density, it is simple to calculate a body's mass from its volume or vice versa. Mass is equal to volume times density, whereas volume is equal to mass divided by density. This relation can be expressed as:
\(Density = \frac{Mass}{Volume}\)
In other words, density is inversely proportional to volume and directly proportional to mass.
This suggests that when a body's volume increases, its density will decrease. Given that all four items have the same mass m but different volumes, the object with the smallest volume will thus be the most dense.
Density of object 1 = m / 6 = 0.16m
Density of object 2 = m / 8 = 0.12m
Density of object 3 = m / 3 = 0.33m
Density of object 4 = m / 14 = 0.071m
Thus, the object which is most dense is object 3 with the highest density 0.33m.
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Predict the leaf pigment phenotype(s) expressed by offspring with the type of proplastids found in an egg cell.
all normal proplastids-
all mutant proplastids-
a combination of normal and mutant proplastids-
The phenotype(s) of leaf pigment expression in the offspring can be predicted based on the type of proplastids found in the egg cell. If all normal proplastids are present, the offspring will express the normal phenotype for leaf pigments.
If all mutant proplastids are present, the offspring will express the mutant phenotype for leaf pigments. If a combination of normal and mutant proplastids is present.
The offspring may exhibit a range of phenotypes, depending on the dominant and recessive traits of the normal and mutant proplastids. The phenotype(s) of leaf pigment expression in the offspring can be predicted using Mendelian genetics principles.
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Which type of transport is responsible for oxygen entering into blood cells?
A- Facilitated
B- Active
C- Vesicle
D- Passive
Answer:
Facilitated
Explanation:
Ape-x
What is the desertification of the sahara? question 14 options: the expansion of the sahara desert the study of the sahara desert the shrinking of the sahara desert the population of the sahara desert
Desertification is the change of a normal land in desert. The expansion of the Sahara desert refers to the desertification of the Sahara.
What is Sahara desert?Sahara desert is in Morocco. It is famous for its variety of land features but is most famous because of sand dune fields.
Desertification can leads to the reduction of the vegetation-covered area. The Sahara desert also is constantly expanding at a faster rate.
The cause of Sahara desertification includes both natural processes such as climate and human activities.
Thus the correct option is A.
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which type of reaction best describes microtubules that are undergoing dynamic instability in vitro- steady state or equilibrium (assuming gtp is always available)?
Microtubules in steady state or equilibrium that are undergoing dynamic instability in vitro. Microtubules' dynamic instability. The hydrolysis of GTP linked to -tubulin during or soon after polymerization lowers the protein's affinity for interacting with nearby molecules, causing dynamic instability.
Self-assembling microtubules (MTs) stochastically alternate between stages of growth and shrinking during dynamic instability. The existence of two alternative MT component states, GTP- and GDP-bound tubulin dimers, with various structural characteristics, is what propels this process. The dynamic behaviour of microtubules is driven by GTP hydrolysis, which modifies the shape of the tubulin molecules. Dynamic instability is a phenomenon in which shrinking and fast microtubule polymerization alternate.
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Receptors are needed for which type(s) of cell signaling?
Answer:
Cell-surface receptors are involved in most of the signaling in multicellular organisms. There are three general categories of cell-surface receptors: ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
Cells contain proteins known as receptors, which bind to signaling molecules and cause a physiological response. Different receptors recognize different molecules.
What are receptors?Receptors are proteins, typically cell surface receptors, that bind to ligands and cause immune system responses.
Cells contain proteins known as receptors, which bind to signaling molecules and cause a physiological response. Different receptors recognize different molecules.
Insulin receptors bind insulin, dopamine receptors bind dopamine, nerve growth factor receptors bind nerve growth factor, and so on.
Thus, due to this, receptors are needed for cell signaling.
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rays of the sun hitting your face. is it potential energy kinetic energy or both
Answer:Radiant energy is a form of kinetic energy so it is Kinetic energy .
bộ lưỡng cư không đuôi có đặc điểm cơ bản là
Answer:
thân ngắn,hai chi sau dài hơn 2 chi trước, đa số hoạt động về đêm
Which of the following statements is an example of data showing that climate change has lead to global warming (pick all that apply): *
The speed of record high temperatures currently being recorded is more than double the rate of record low temperatures.
Ancient air bubbles trapped in ice containing measurable amounts of greenhouse gases that were way less than today.
Increasing amounts of meteor showers that happen due to asteroids breaking apart in Earth's atmosphere.
All of the above
None of the above
Answer:
I think is all of the above
D
Explanation:
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is ethane an elementary substance or compound?
Answer:
Ethane is a chemical compound
Explanation:
Air is a mixture of different __________. What one word completes the sentence?
Answer:
Air is a mixture of different gasses
If mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome.
a. True
b. False
False, If mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome.
Why would the lack of sterility in mules not guarantee the absence of reproductive barriers?Even if mules were no longer sterile and could produce offspring, the resulting offspring may still have genetic abnormalities that prevent them from producing viable offspring of their own, or they may not be able to successfully mate with other organisms.
What are some examples of reproductive barriers that may prevent successful mating and offspring production?Reproductive barriers include genetic incompatibilities between different species, differences in mating behavior or reproductive organs, geographical isolation, and differences in the timing of reproductive cycles. These barriers can prevent successful mating and offspring production even if two organisms are capable of reproducing.
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Explain why streets and highways have speed limits rather than
velocity limits. Because
Answer:
Velocity is a vector, it has magnitude and direction. They have speed limits rather than velocity because in whatever direction you go, you should have limited speed.
Hypothesize about tumor growth. Scientists have shown that tumor growth is an example of positive feedback loops. Why is tumor growth an example of positive feedback? In your answer elaborate using the following terms stimulus, receptor, control center, effector, response.
Answer:
The connection between cancer cells stimulates uncontrolled proliferation and tumor growth
Explanation:
In the tumor, cancer cells are interconnected by different types of proteins, which may act as receptors or amplify oncogenic signals. For example, in breast cancer, it has been shown that oncogenic cells are often connected through E-cadherin proteins that mediate their adhesion, thereby stimulating the cell movement and invasion (characteristic of tumor metastasis). In this case, E-cadherin membrane proteins function by enhancing effector response in cancer cells. The nucleus acts as the control center of the cell that modulates the expression of tumor suppressor genes in order to inhibit tumor metastasis.
In both plants and animals, RNA contains
deoxyribose sugar, phosphates, adenine, uracil, guanine, and cytosine
ribose sugar, phosphates, adenine, thymine, guanine, and cytosine
ribose sugar, phosphates, adenine, uracil, guanine, and cytosine
deoxyribose sugar, phosphates, adenine, thymine, guanine, and
cytosine
Answer:
option (C)
Explanation:
In both plants and animals, RNA contains:
Ribose sugar, phosphates, adenine, uracil, guanine, and cytosine.
the cell fragments that are a component of blood are?
The cell fragments that are a component of blood are platelets.
Blood is а fluid thаt moves through the vessels of а circulаtory system. In humаns, it includes plаsmа (the liquid portion), blood cells (which come in both red аnd white vаrieties), аnd cell frаgments cаlled plаtelets.
Plаsmа is the mаin component of blood аnd consists mostly of wаter, with proteins, ions, nutrients, аnd wаstes mixed in.Red blood cells аre responsible for cаrrying oxygen аnd cаrbon dioxide.Plаtelets аre responsible for blood clotting. Thrombocytes, or plаtelets, аre not complete cells, but аre smаll frаgments of very lаrge cells cаlled megаkаryocytes. Megаkаryocytes develop from hemocytoblаsts in the red bone mаrrow.White blood cells аre pаrt of the immune system аnd function in the immune response.For more information about the components of blood refer to the link:
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Old crust is destroyed and recycles at a
mid ocean ridge
deep ocean trench
Why can proteins act as excellent catalysts of chemical reactions in the body?.
Answer: They contain substances/substrates in specific ways that heighten the chances of the chemicals reacting with each other
Explanation:
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Give an example of chemical energy in the body turning into thermal energy.
A. a reptile absorbing heat from the sun and turning it into heat in the body
B. using stored energy in the form of lipids to provide motion such as running
C. using stored energy in the form of lipids to provide heat energy such as shivering
D. a warm blooded animal creating heat energy from the body moving during working
out
Answer:
energy?
Chemical energy of a chemical substance can be transformed to other forms of energy by specific chemical reactions. For example, when a fuel is burned, the chemical energy is converted to heat energy. When digested food is metabolized within in a biological organism, chemical energy is also converted into heat energy.
Some breeds of beef cattle have two color options, red and black, where the black version of the gene (B) is dominant over the red version (b).
The different forms of the beef cattle color gene are called ___
The different forms of the beef cattle color gene are called alleles. Alleles are alternate forms of the same gene, and they can be either dominant or recessive.
In the case of the beef cattle color gene, the black version of the gene (B) is dominant over the red version (b). This means that if both the dominant and the recessive alleles are present, the black color will be expressed in the cow. However, if two recessive alleles are present, then the red color will be expressed in the cow.
Dominant alleles are always expressed in an organism, while recessive alleles are only expressed when two of them are present. Dominant alleles can also be passed on to offspring, while recessive alleles can only be passed on if two of them are present.
This is why it is important to understand the genetic makeup of a breed before breeding. By studying the alleles and their expression, breeders can ensure that the desired phenotype is expressed in the offspring.
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which of the following best describes woman who are diagnosed more often with eclampsia?
are under 18 with first pregnancy
hyperemesis gravidarum
placenta previa
Woman who are diagnosed more often with eclampsia are those with placenta previa.
• Eclampsia is a serious condition characterized by seizures in pregnant women.
• Placenta previa refers to the abnormal placement of the placenta in the uterus, which can lead to complications such as bleeding.
• Research has shown that women with placenta previa have a higher risk of developing eclampsiacompared to other factors such as being under 18 with the first pregnancy or having hyperemesis gravidarum.
• Therefore, among the given options, placenta previa is the best descriptor for women who are diagnosed more often with eclampsia.
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The condition that is most commonly associated with an increased risk of eclampsia is "placenta previa." Therefore, option (C) is correct.
Pregnancy complications like eclampsia cause high blood pressure and seizures. The placenta partially or completely covers the cervix, causing bleeding during pregnancy. Placenta previa increases eclampsia risk.
Eclampsia can occur in women without risk factors as well. Pregnancy-related eclampsia requires medical diagnosis and monitoring. A doctor can diagnose and advise you on eclampsia and other medical issues.
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How many chromosomes are found in a human somatic cell nucleus?.
46
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46
the yellow cast to the skin that indicates liver disease
The yellow cast to the skin that indicates liver disease is referred to as jaundice.
Jaundice is a condition characterized by a yellow discoloration of the skin and whites of the eyes that indicates an elevated level of bilirubin in the bloodstream. Bilirubin is a yellow-colored substance produced during the natural breakdown of red blood cells in the body.
When the liver is damaged, it is unable to process bilirubin effectively, leading to a buildup of bilirubin in the bloodstream, which causes jaundice. The yellowing of the skin is not the only symptom of liver disease.
Other symptoms may include abdominal pain, swelling, and tenderness, nausea, and vomiting, loss of appetite, fatigue, weight loss, and fever. The severity of the symptoms varies depending on the underlying cause of the liver disease and the stage of the condition.
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nursing care of the child with myelosuppresion from leukemia or chemotherapeutic agents should include what
Nursing care of a child with myelosuppression from leukemia or chemotherapeutic agents should include the following steps:
1. Monitor vital signs: Regularly assess the child's temperature, blood pressure, heart rate, and respiratory rate to detect any abnormalities.
2. Assess for signs of infection: Since myelosuppression weakens the immune system, observe for fever, chills, cough, and other signs of infection.
3. Administer prescribed medications: Provide appropriate antibiotics, antifungal, and antiviral medications as prescribed to prevent and treat infections.
4. Maintain strict hand hygiene: Wash hands thoroughly before and after providing care to reduce the risk of infection.
5. Educate the child and family: Explain the importance of hygiene, proper nutrition, and avoiding exposure to sick individuals to minimize infection risk.
6. Encourage proper nutrition: Promote a balanced diet with adequate protein, vitamins, and minerals to support the child's immune system.
7. Manage side effects: Assist with managing symptoms such as fatigue, nausea, and pain to improve the child's comfort and quality of life.
8. Administer blood products: Provide blood transfusions as needed to treat anemia and improve oxygen delivery to tissues.
9. Monitor laboratory values: Regularly assess complete blood counts (CBC) and other relevant labs to evaluate the child's response to treatment and identify potential complications.
10. Coordinate with the healthcare team: Collaborate with physicians, pharmacists, and other healthcare professionals to ensure comprehensive and personalized care for the child.
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What happened to the green site of the protein in the mutated CFTR protein
Loss of Function, Structural Changes and Altered Interactions will happen to the green site of the protein in the mutated CFTR protein
In the mutated CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) protein, there can be various changes or alterations that can affect the green site or active site of the protein. Without specific information about the specific mutation or the green site in question, it is challenging to provide a specific answer. However, I can explain some general possibilities:
Loss of Function: Some mutations in the CFTR gene can lead to a loss or reduction in the functional activity of the CFTR protein. This can result in a malfunctioning or non-functional green site, leading to a disruption in its normal biological function.
Structural Changes: Mutations can cause structural changes in the CFTR protein, including alterations in the green site. These changes can affect the binding ability, enzymatic activity, or substrate specificity of the protein, impacting its normal function.
Altered Interactions: Mutations can affect the interactions between the CFTR protein and other molecules or partners involved in its activity. This can lead to changes in the binding affinity or efficiency of the green site, impairing its ability to interact with its specific target.
It is important to note that the specific consequences of a mutation in the CFTR protein, including its impact on the green site, can vary depending on the type and location of the mutation. Further information about the specific mutation would be needed to provide more detailed insights into the effect on the green site of the CFTR protein.
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