when the tectonic plates move the bones are carried from one place to another
The presence of similar fossils on different continents supports the idea of tectonic plate movement because it indicates that these continents were once connected in a landmass known as a supercontinent, and they have since drifted apart due to the movement of tectonic plates.
What are tectonic plates?Tectonic plates are large pieces of the Earth's lithosphere (the outermost solid layer of the Earth) that move and interact with each other. These plates can be thought of as giant puzzle pieces that fit together to form the Earth's surface.
When tectonic plates move, they can carry the continents they support along with them, leading to the separation of previously connected landmasses.
For example, the fossil remains of the freshwater reptile Mesosaurus have been found in both South America and Africa, which suggests that these continents were once connected.
The presence of the same species in two separate locations indicates that they were once a single population and that they were likely separated when the landmass they lived on split apart.
This observation supports the theory of continental drift and plate tectonics, which explain the movement of the Earth's continents over time.
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Each of the colors of light in the visible light spectrum has?
Answer: Different Wavelengths
Explanation:
As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.
Answer: slightly different amounts of energy.
Explanation:
I checked it on USA test prep
Which cell type makes up the brain; somatic or germ cells?
Answer:
somatic
Explanation:
Answer:
somatic
Explanation:
somatic cells make up the internal organs, bones and skin while germ cells give rise to spermatoza
Which type of mutation results in a base pair within a DNA sequence being replaced with a different pair?
Deletion
Substitution
Inversion
Translocation
Translocation is the type of mutation result in a base pair within a DNA sequence that is replaced with a different pair.
Answer:
Substitution
Explanation:
Substitution is a type of mutation where one base pair is replaced by a different base pair.
Translocation is a genetic change in which a piece of one chromosome breaks off and attaches to another chromosome.
In the chart, the recessive trait is
can you please post the chart?
Answer:
In the chart, the recessive trait is
A) no teeth.
B) sex-linked.
C) small teeth.
D) large teeth.
Explanation: Here is the chart.
The motion of a fish swimming in a fish tank is in example of what type of energy
Kinetic energy, because kinetic energy is energy in motion/action
The motion of a fish swimming in a fish tank is an example of kinetic energy.
How do fish swim in a fish tank?Fish having caudal fins and tail help to move in water by swishing their tail side by side this action propels the fish like a boat.
Kinetic energy is the energy of motion of an object, with every moving thing having kinetic energy.
Fish gates energy from food and convert it into another point like mechanical energy. Fish swim by flexing their body back and forth in the water, stretching their muscles on one side and that time relaxing their muscles from the other side moving their body into the water. Fish use their caudal fin which helps them push through the water.
Therefore, in a fish tank, the motion of a fish swimming is a type of kinetic energy.
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What makes water a polar molecule?
A. The liquid nature of water B. The equal forces between oxygen and hydrogen C. The ionic bond between oxygen and hydrogen D. The uneven bend in the bond between oxygen and hydrogen
The uneven bend in the bond between oxygen and hydrogen makes water a polar molecule.
Further ExplanationPolar molecules
Polar molecules result from a difference in electronegativity between bonded atoms. For example in water the bonded atoms of oxygen and Hydrogen have a difference in electronegativity such that oxygen is partially electronegative while hydrogen is partially positive. Atoms in a polar molecule do not share electrons equally in a covalent bond. In a polar molecule such as water molecule, a dipole is formed with one part of the molecule carrying a partial positive charge while the other carries a partial negative charge. Dipole forms when there is a difference in electronegativity of each atom in a polar molecule.Examples of a polar molecules;
Ethanol; between hydrogen and oxygen atom. Water; between hydrogen and oxygen atoms Ammonia; Nitrogen and hydrogen atoms Non-polar molecules These are molecules that have atoms sharing electrons equally in a diatomic molecule. In these molecules there is no net electrical charge across the molecule. Non polar bond forms when the difference in electronegativity between atoms is less than 0.5. They also form when atoms sharing a polar bond are aligned in such a way that the net electric charge is zero. Examples of non-polar molecules include; noble gases, such as He, carbon dioxide, methane, benzene, etc.
Keywords: Polar molecules, non-polar molecules, dipole, polar and non-polar bond
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Level: High school
Subject: Chemistry
Topic: Structure and bonding
Sub-topic: Polar and Non-polar bond
D. The uneven bend in the bond between oxygen and hydrogen makes water a polar molecule.
Water is a polar molecule because of the uneven distribution of electron density within its chemical bonds. In a water molecule, two hydrogen atoms are covalently bonded to one oxygen atom. Oxygen is more electronegative than hydrogen, meaning it has a stronger pull on shared electrons in the covalent bonds.
As a result, the oxygen atom pulls the shared electrons closer to itself, creating a partial negative charge (δ-) around the oxygen atom and partial positive charges (δ+) around the hydrogen atoms. This uneven distribution of charge results in a dipole moment, where one end of the molecule has a partial positive charge, and the other end has a partial negative charge.
The bent shape of the water molecule also contributes to its polarity. Due to the two lone pairs of electrons on the oxygen atom, the H-O-H bond angle is approximately 104.5 degrees. This bent molecular geometry further enhances the unequal sharing of electrons between oxygen and hydrogen, reinforcing the polar nature of water.
Water's polarity is crucial for its unique properties and behavior. It enables water molecules to form hydrogen bonds with each other and with other polar molecules, leading to properties such as high surface tension, high specific heat, and excellent solvent capabilities. These properties are essential for life as we know it, as they play a vital role in various biological processes and the functioning of ecosystems.
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Which of the following is a true statement about mutually exclusive events?
They must happen one right after the other.
They cannot influence each other.
They cannot happen at all.
They cannot happen at the same time.
they cannot influence each other
Answer:
They cannot happen at the same time.
Explanation:
Mutually exclusive events are those in which the existence of one situation automatically excludes the existence of another. For this reason, we can say that mutually exclusive events cannot happen at the same time.
As an example, we can mention that you can quickly notice that a 50% chance of a coin falling in the face and a 50% chance of falling in the crown, because there is a chance between two possible situations. You can also easily notice that it is impossible to get both results at once, as the coin will not fall on both sides simultaneously. Therefore the probability of obtaining two results at the same time is zero and such an event is called a mutually exclusive event.
does a tumor in the pituitary gland affect the thyroid gland?
Answer:
Some pituitary tumors result in too many of the hormones that regulate important functions of your body. Some pituitary tumors can cause your pituitary gland to produce lower levels of hormones. Most pituitary tumors are noncancerous (benign) growths (adenomas).
Not sure if this was helpful, but I hope it was. :)
A tumor in the pituitary gland can indeed affect the thyroid gland, as the pituitary gland regulates the thyroid and other glands in the endocrine system. This tumor can disrupt the hormone signals it normally sends to the thyroid, thereby leading to an imbalance in the production of thyroid hormones.
Explanation:Yes, a tumor in the pituitary gland can impact the function of the thyroid gland. The pituitary gland, sometimes referred to as the 'master gland', controls various other glands in the endocrine system, including the thyroid, through the secretion of hormones. A case in point, the anterior pituitary stimulates the thyroid gland to release thyroid hormones T3 and T4. If a tumor develops in the pituitary gland, this tumor can disrupt these hormonal signals, thereby affecting thyroid function. For example, it may lead to an overproduction or underproduction of hormones, resulting in conditions such as hyperthyroidism (too much thyroid hormone) or hypothyroidism (too little thyroid hormone) respectively. Consequently, the thyroid may enlarge, leading to a condition known as goiter.
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What is a transgenic organism?
A:One that contains rDNA
B: one that has evolved
C:one produced by sexual reproduction D:one that has been cloned
Answer:
a transgenic organism is one that contains rDNA; Recombinant DNA
Explanation:
Transgenic organisms are organisms that contain foreign DNA (rDNA) which is normally introduced via biotechnology. The transgene is simply the DNA from another species or it can be also an rDNA from the same species which has been altered in the laboratory then reintroduced into the organism
Which best matches a list that a scientist would make to describe a forest ecosystem?
A)different types of animals and plants, and the forest soil
B) an animal species, the soil, water, and nutrients
C) all the living things in the forest ecosystem
D)different types of soil, rocks, and water sources in the forest
Answer:
The answer is different types of animals and plants, and the forest soil.
Explanation:
A forest Ecosystems consist of different animals and plants found there as well as the soil that in-habitat several microorganisms. While explaining the details of forest ecosystem is it important to describe that what kind of animals are found there and what is the role of forest soil in the growth of plantation found there.
Answer:
A)different types of animals and plants, and the forest soil
Explanation:
Ecosystem is sum total of biotic and abiotic factors of an area. All the living beings together make the biotic component of ecosystem while the abiotic components include physical and chemical factors such as temperature, soil type, rainfall pattern, light intensity etc. Hence, different types of animals and plants (biotic components) and the forest soil (abiotic component) would describe the forest ecosystem.
what is the function of the mesentery in fetal pigs and humans?
Answer:
The function of the mesentery is to hold the internal organs in place with thin sheets of tissue. It also supplies them with blood supply and nervous input. It extends from the abdominal wall and attaches the small intestines and other organs to the wall.
And for humans Mesentery In general, a fold of tissue that attaches organs to the body wall. The word mesentery usually refers to the small bowel mesentery, which anchors the small intestines to the back of the abdominal wall. Blood vessels, nerves, and lymphatics branch through the mesentery to supply the intestine.
What is the function of fold and villi
I think the answer is A.
Answer: Option A.
Explanation:
Villi are the finger like projection present in the surface of small intestine in circular folds.
Villi is the organelle that functions to increase the surface area ( internal surface) of small intestine walls and provide more surface area for absorption. The increased surface area increases absorption of useful nutrients such as amino acid and monosaccherides and that passes into the semipermeable villi with the process of diffusion. Villi decreases the average distance travelled by nutrient molecules due to increased surface area and hence diffusion increases.
Hence, the correct option is A.
Below is a food chain from an ecosystem.
fly → frog → snake → alligator
The arrows indicate the direction of the flow of
water.
carbon dioxide.
oxygen.
energy.
Answer:
I think the answer is D.
ENERGYYYExplanation:
Trilobites were abundant in Pennsylvania. Trilobites were among the first of the arthropods, a phylum of hard-shelled creatures with multiple body segments and jointed legs. Their fossils first appeared in early Cambrian period about 570 million years ago. The trilobite fossils show that during most of this time Pennsylvania was ___________ providing favorable conditions for the trilobites.
A) glacial terrain
B) a dry and sandy plain
C) mostly mountain ranges
D) covered by warm, shallow seas
Answer:
The answer is D)
The trilobite fossils show that during most of this time Pennsylvania was covered by warm, shallow seas providing favorable conditions for the trilobites.
What is Pennsylvania?
One of the original 13 American colonies, Pennsylvania, formally known as the Commonwealth of Pennsylvania, is a state that makes up the United States of America.
The state is somewhat rectangular in shape and spans 150 miles (240 km) in the north and 150 miles (480 km) in the east. Its northern and eastern borders are Lake Erie and New York State; its western and southern borders are the West Virginia panhandle and Ohio. Its eastern and southern borders are Delaware, Maryland, and West Virginia.
The state's capital is Harrisburg, which is located in the Appalachian Mountains' foothills. Pennsylvania, along with New York, New Jersey, Delaware, and Maryland, is categorized as a Middle Atlantic state.
Therefore, The trilobite fossils show that during most of this time Pennsylvania was covered by warm, shallow seas providing favorable conditions for the trilobites.
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A newly discovered solar system is found 300 billion kilometers from the sun. How many AU does this represent? Show your work.
sidenote- please do not copy and paste this or else the answer is worthless
1 kilometer = 6.68 × [tex]10^{-9}[/tex] (<<<AU is in scientific notation here)
To convert 300 billion kilometer (3,000,000,000 km) into AU you must multiply the kilometer by the equivalent of 1 km in AU (6.68 × [tex]10^{-9}[/tex])
3,000,000,000 × (6.68 × [tex]10^{-9}[/tex]) = 20.04 AU
Hope this helped!
Using the definition of an astronomical unit (AU) as 150 million kilometers, 300 billion kilometers equals 2,000 AUs, which is the distance of the newly discovered solar system from the Sun.
To calculate the distance of a newly discovered solar system from the Sun in astronomical units (AU), we first need to know that 1 AU is defined as approximately 150 million kilometers, which is the average distance from Earth to the Sun. To convert 300 billion kilometers to AUs, we would divide the distance in kilometers by the distance of 1 AU:
300 billion kilometers / 150 million kilometers per AU = 2,000 AUs.
Therefore, the newly discovered solar system is 2,000 AUs away from the Sun.
what is the large brand of muscle that controls the size of the chest activity
Answer:
Diaphragm
Explanation:
The diaphragm because it controls the size of the chest cavity using the lungs.
Hope This Helps!
It's the Diaphragm hope I got it right
Which color of light does chlorophyll b absorb more of than any other color?
Red
Yellow
Green
Blue
Answer:
Blue
Explanation:
Chlorophyll b absorbs more blue light than any other color of light. Therefore, the correct option is D.
What is Chlorophyll b?A special form of chlorophyll pigment called chlorophyll b is present in plants, algae and some cyanobacteria. The other major form of chlorophyll is chlorophyll a, and it belongs to the same group. Despite having a structure that is somewhat similar to that of chlorophyll a, chlorophyll b has a slightly different chemical makeup that enables it to absorb light of different wavelengths.
The process of photosynthesis, in which plants and other photosynthetic organisms convert sunlight into energy, involves both chlorophyll a and chlorophyll b. To be more precise, chlorophyll b collects light energy and passes it to chlorophyll a, which uses the energy to fuel the chemical activities of photosynthesis.
Therefore, the correct option is D.
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Which of the following accurately describes a characteristic of fungi? A. Parasitic fungi often form symbiotic relationships with algae to form lichens. B. Mutualistic fungi form symbiotic relationships with plants to form mycorrhizae. C. Parasitic fungi are responsible for helpful benefits to plants. D. Mutualistic fungi are responsible for producing some human diseases.
Answer:
B
Explanation:
mutualistic leaf-dwelling fungi that obtain sugar from plant leaves
Santini is observing different leg lengths, shapes, and hair structure of destructive locusts in order to better understand the pest.Which of the pieces of equipment would be MOST useful for examining the legs of an insect up close?
A) magnifying glass
B) electron microscope
C) compound light microscope
D) stereomicroscope (dissecting scope)
Answer:
D) Diseccting scope
Explanation:
U r examining the legs of small incects. I hope i helped! :)
Answer:
D) stereomicroscope (dissecting scope)
Explanation:
A stereomicroscope is a microscope that has low magnification and is often used to view the surface of the specimen to b observed and carry out works such as microsurgery and dissection where you don't need much greater magnification but a greater field view.
Therefore, when wants to the legs of an insect up close, the stereo microscope is the best choice as it allows to fit the insect leg in the view and also provide enough magnification.
Which of the following is a process during meiosis that leads to genetic variation?
A.
cellular material replicates before separation
B.
the nuclear envelope breaks down within the cell
C. genes independently separate from one another
D. DNA organizes into chromosomes within the nucleus
Reset
I’m pretty sure the answer is D I might be wrong though
The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______. a. surface area b. water depth c. temperature d. salinity Please select the best answer from the choices provided
Answer:
d. salinity
Explanation:
The aquatic ecosystems are simply divided into two branches, marine ecosystems and freshwater ecosystems. This division is based upon the salinity of the water where certain ecosystem is found. If the water is classified as salty water, then the ecosystem will be a marine one, if the water is classified as freshwater, then the ecosystem will be a freshwater one. The marine ecosystems are found in the oceans, seas, salty marshes, and salty lakes, while the freshwater ecosystems are found in the streams, rivers, freshwater lakes, marshes, ponds, swamps.
Answer:
D
Explanation:
drag each label to the correct location on the chart match the function to the type of tissue
The question is asking the student to observe various tissue slides under a microscope, sketch their observations proportionately, and identify the tissue structures.
The student's task is to match the function of different tissue types through direct observation of tissue slides under a microscope. They are to obtain a slide of the specified tissue, view it under the microscope using the appropriate objective for the best view, sketch what they see, and fill in the blanks with their observations and identifications of the tissue's structures. Each tissue type, like adipose connective tissue, dense irregular connective tissue, areolar connective tissue, and cardiac muscle tissue, has distinct characteristics that can be observed at various magnifications. The student must carefully draw these structures proportionately, reflecting their true shapes and arrangements as seen in the microscope's field of view, and label them accordingly.
Identify the interaction described below. One organism benefits while the other is killed. Two species need the same resource, which is limited.
One organism benefits while the other is killed. Two species need the same resource, which is limited. The interaction described is called competition.
In competition, two or more organisms require the same limited resource, such as food, water, space, or sunlight.
Both organisms compete for access to the resource, and as a result, one organism may outcompete the other, leading to its successful acquisition of the resource while the other organism is deprived and may ultimately die or experience reduced fitness.
Competition plays a crucial role in shaping ecological communities and driving the evolution of species. It can drive adaptations and lead to the development of specialized traits that allow organisms to better exploit resources or avoid direct competition.
Through competition, species can influence each other's distribution, abundance, and community structure.
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Final answer:
The interaction described is a combination of two types: predation or parasitism and interspecific competition. The former involves a clear beneficiary and a victim, while the latter is a struggle over limited resources, negatively impacting both species involved.
Explanation:
The scenario described where one organism benefits while the other is killed, and two species need the same resource, which is limited, refers to two different types of interactions: predation or parasitism, and interspecific competition, respectively. Interspecific competition occurs when two species compete for the same limiting resources in their ecosystem. This competition can lead to one species outcompeting the other, possibly resulting in the exclusion or adaptation of the lesser competitor. This interaction plays a significant role in natural selection.
On the other hand, predation involves one species killing and eating another, while parasitism involves one species benefiting at the expense of the other, potentially without immediate death. In competition, even the 'winning' species suffers costs from the energy and resources expended in the process, leading to a negative impact on both participants.
Which property of gold is NOT a reason why gold is often used to make metals?
A. rare
B. malleable
C. corrosion resistant
D. good conductor of electricity
Answer: The answer is A. rare
Explanation:
Hope this helps
The answer will be A as the other guy said.
The explanation is just because gold is rare doesn’t mean it won’t be made into metals.
Match each biodiversity problem with the most appropriate solution
Answer:
1. A large highway prevents yellow-spotted salamanders from traveling to their breeding grounds - Construction of wildlife corridor
2. The hawksbill sea turtle is in decline because of excessive hunting and exploitation - Classifying the species as endangered
3. A population of channel catfish is threatened by a high level of pollution in a river - Bioremediation
4. The loss of vegetation in a forest reduces the survival rate of eastern bluebirds - Reforestation
Explanation:
The pants and animals are facing lot of dangers and threats because of the human activities, so there are numerous methods that can be used in order to protect and preserve them as part of nature. The construction of wildlife corridors is a very nice method that enables the animals to move freely from one part to another of their habitat, and not be in danger of getting hit by a vehicle. Classifying a species as endangered is useful when species needs protection, as with this action the species will be protected by law, so that will significantly reduce or eliminate the threat. Bioremediation is a method used to get certain habitat into its initial healthy natural form and composition, and this method is crucial when it comes to preserving the species in polluted habitats. One of the biggest problems is the deforestation because the forests are the basis for the survival of the majority of organisms. The solution for that is the reforestation, which is simply a method through which new young saplings are planted on the places where the old trees have been eliminated.
1, A large highway prevents yellow-spotted salamanders from traveling to their breeding grounds - Construction of wildlife corridor
2. The hawksbill sea turtle is in decline because of excessive hunting and exploitation - Classifying the species as endangered
3. A population of channel catfish is threatened by a high level of pollution in a river - Bioremediation
4. The loss of vegetation in a forest reduces the survival rate of eastern bluebirds - Reforestation
Explanation:
plato
The circulatory system works best with which other body system to supply the body’s cells with the nutrients they need?
Answer: fins
Explanation:
Answer:
the digestive system
Explanation:
The circulatory system has always worked with the digestive system because digestive system makes sure when you eat food it gets broken down and out of your body and circulatory circles everything around with veins and arteries.
What does a karyotype show?
Final answer:
A karyotype shows the number, shape, and size of chromosomes in an individual's cells. Genetic abnormalities such as extra or missing chromosomes, large DNA deletions or insertions, and translocations can be identified through a karyotype. Examples of genetic disorders that can be diagnosed with a karyotype include Down Syndrome and Turner Syndrome.
Explanation:
A karyotype is a visual representation of an individual's chromosomes. It shows the number, shape, and size of chromosomes in a person's cells. By examining a karyotype, geneticists can identify genetic abnormalities such as extra or missing chromosomes, large deletions or insertions of DNA, and translocations. For example, Down Syndrome is characterized by a third copy of chromosome 21. Turner Syndrome, on the other hand, is characterized by the presence of only one X chromosome in women instead of two.
Which of the following is nothuman-caused groundwater pollution?
Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
Answer:
The correct answer would be option D.
Explanation:
Large natural reservoirs or source of water below the surface of the Earth is known as the aquifer. The aquifers have become badly polluted because of several reasons, especially human-caused water pollution. But there are few natural processes too that pollute it and make it very unsafe.
Some rocks have toxic metals like mercury and arsenic in them. If such toxic metals get dissolved in water they will make water toxic and lethal.
Thus, the correct answer would be option D.
Which scientist used the word "cell” for the first time in science? Matthias Schleiden Theodor Schwann Robert Hooke Anton van Leeuwenhoek
Answer:
Schwann Robert Hooke
Explanation:
He discovered a honeycomb like structure in a cork slice using a primitive compound microscope. He only saw cell walls as he was looking at dead tissue. Hooke coined the term "cell" for the individual compartments he saw
Answer:
Robert Hooke
Explanation:
What's the primary function of oxygen in aerobic respiration?
A. To donate electrons to all other particles within cellular respiration B. To improve the efficiency of chemical reactions C. To act as a receptor for carbon dioxide molecules D. To give short bursts of energy to muscle cells
Answer:
The correct answer is D)
Explanation:
Aerobic respiration uses oxygen to break down glucose, amino acids, and fatty acids and is the main way the body generates adenosine triphosphate (ATP), which supplies energy to the muscles.
This energy is used to drive the various energy-requiring processes in the body.
Cheers!
The primary function of oxygen in aerobic respiration A. To donate electrons to all other particles within cellular respiration
Explanation:The element oxygen serves as the final electron acceptor in the electron transport chain. This then typically facilitates the complex production of ATP which is the cell's primary energy currency, through the proper oxidation of glucose and other organic molecules.
Thus, the primary function of oxygen in aerobic respiration is to act as the final electron acceptor in the electron transport chain. As electrons are passed through the chain, oxygen combines with hydrogen ions to form water. This process generates energy in the form of ATP, which is used as the main source of energy for cellular activities.
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