Which of the following best supports the theory of continental drift?
A
South America and Africa have completely different rock layers.
B
A hurricane hits the Gulf of Mexico at the beginning of June.
C
Similar fossils are found on the coasts of South America and Africa.
D
North America and South America are connected by land.
Answers
Answer:
C
Similar fossils are found on the coasts of South America and Africa.
Continental drift is a hypothetical argument that affirms that the continents of the Earth shifted over the geological timeline. It says that the landmasses drifted over the oceans hence creating several continents and oceans.
The correct answer is:
Option C. Similar fossils are found on the coasts of South America and Africa.
The explanation for the correct answer is:
The continents either drifted away or clashed together to form present-day continents.Remains from similar species infer that South America and Africa used to be together.The theory of Pangaea states that all the continents were united once but due to a shift in tectonic plates the continents drifted apart.Therefore, alike fossils found in various continents supports the theory of continental drift.
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Related Questions
which statement represents the major concept of the biological theory of evolution?aa new species moves into a habitat when another species becomes extinct.b (every period of time in earth's history has its own group of organisms.present-day organisms on earth developed from earlier, distinctly different organisms.every location on earth's surface has its own unique group
Answers
The statement that represents the major concept of the biological theory of evolution is (b) "present-day organisms on Earth developed from earlier, distinctly different organisms."
This concept is also known as descent with modification or common descent, and it is a central idea in the theory of evolution proposed by Charles Darwin.
This theory proposes that over time, populations of organisms change through the process of natural selection, resulting in the formation of new species from earlier ones.
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coccidioidomycosis, a fungal infection of the upper respiratory tract, is also called
Answers
Coccidioidomycosis, a fungal infection of the upper respiratory tract, is also called Valley fever.
Coccidioidomycosis, commonly known as Valley fever, is an infectious disease caused by the fungus Coccidioides. It primarily affects the lungs and can cause flu-like symptoms such as cough, fever, chest pain, and fatigue. The fungus is found in arid regions, particularly in the southwestern United States, Mexico, and parts of Central and South America.
When the soil containing the fungus is disturbed, spores can become airborne and be inhaled by humans, leading to infection. The name Valley fever originated from the San Joaquin Valley in California, where the disease was first identified. However, it can occur in other regions with similar environmental conditions. Prompt diagnosis and appropriate treatment are crucial for managing coccidioidomycosis.
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the antibiotic penicillin inhibits bacterial cell wall synthesis. cells attempting to synthesize new cell wall components die in the presence of penicillin. in which growth phase are cells most susceptible to being killed by penicillin?
Answers
Penicillin is an antibiotic used to treat various malignant antigens that are potent enough to cause morphological and anatomical changes in an organism.
Penicillin kills bacterial cells by binding them to beta lactam ring to DD transpeptidase, preventing a new cell wall formation by restricting its cross linking activity. Inhibition of the new cell wall formation during the actively dividing phase in a bacterial cell is known as logarithmic growth phase or the log phase.
During the log phase only the bacteria is more susceptible to the actions of disinfectant and other common antibiotics that affect the DNA, protein and thus basic structural formation.
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a species of snakes became extinct due to pollution in a river where the snakes once lived. this is an example of
Answers
A species of snakes became extinct due to pollution in a river where the snakes once lived. This is an example of a market failure caused by an externality.
An externality is a cost or benefit caused by a producer that is not financially incurred or received by that producer. An externality can be both positive or negative and can stem from either the production or consumption of a good or service. The costs and benefits can be both private—to an individual or an organization—or social, meaning it can affect society as a whole. Almost all externalities are considered to be technical externalities. Technical externalities have an impact on the consumption and production opportunities of unrelated third parties, but the price of consumption does not include the externalities. This exclusion creates a gap between the gain or loss of private individuals and the aggregate gain or loss of society as a whole.
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which premolar has a pronounced concavity (fossa) on the cervical part of mesial surface of the crown?
Answers
The premolar with a pronounced concavity (fossa) on the cervical part of the mesial surface of the crown is called the mandibular first premolar (lower first premolar).
What are teeth?Teeth are small, white structures found in the jaws (or mouths) of humans and many other animals. Teeth assist in the mechanical digestion of food by biting and grinding it into smaller pieces. Most teeth are composed of a layer of dentin encased in a layer of enamel.
Enamel, the hardest substance in the body, protects the underlying dentin from decay and wear. Teeth have multiple functions, including biting and cutting food, supporting speech, and maintaining a normal facial appearance.
What are premolars?Pemolars are a type of tooth that humans have. Premolars are located between the canine and molar teeth and are used to grind and crush food. Humans have four premolars on both the top and bottom jaw, with the first and second premolars located on each side of the mouth.
The molars, which are even larger than the premolars, are located behind the premolars on both the top and bottom jaws.
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Explain how used the fossil, rock and glacier evidence to help you form Pangaea
Answers
Answer:
Glacial deposits are glacial landforms developed by big rocks collected in the landscape region due to the withdrawal of glaciers.
Explanation:
explain the four weed control methods. give at least 2 examples that you practice. 2 example in each control method.. plzz ans this question
Answers
Answer:
Cultural Weed Control, Mechanical Weed Control, Biological Weed Control and Chemical Weed Control.
Explanation:
Cultural Weed Control, Mechanical Weed Control, Biological Weed Control and Chemical Weed Control are the four methods used for weed controls. Pulling and digging are the two examples of Mechanical weed control while on the other hand, herbicides such as Metribuzin and 2,4-dichlorophenoxyacetic acid (2,4-D) are the two examples of Chemical Weed Control. Herbicide is the most effective and quick method used for weed control.
what state of matter is ice ? A, element B. gas C. liquid D. solid
Answers
Intrusive igneous rock has a well
developed, course-grained texture.
Which of the following is accurate about
this type of igneous rock?
A. It is made from sediments.
B. It is made from lava that cools quickly.
C. It is made from magma that cools slowly.
hip.
D. It never solidifies.
Answers
The accurate statement about intrusive igneous rocks is: (C) It is made from magma that cools slowly.
Igneous rocks are also called the magnetic rocks. They are formed by the cooling down and crystallization of the magma. These are further of two types: intrusive and extrusive. Polished granite is made from igneous rocks that is very commonly used to make the kitchen counter-top.
Magma is the extremely hot molten lava present in the mantle layer of the Earth. This magma when goes deep inside the Earth's crust layer, it causes volcanic eruptions. The magma is formed due to the meting of rocks.
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Describe the characteristics of chytrids and their effect in the amphibian population.
Answers
Chytridiomycota,a phylum of fungi, is characterized by possessing zoopores or motile cells with a single, posterior, whiplash framework or flagellum. They produce gametes adn diploid zoopores that move with the aid of a single flagellum s
List the muscle fibre types that would be activated during throwing a frisbee and why this muscle fibre type is used.
Answers
The three types of muscle fiber are slow oxidative, fast oxidative and fast glycolytic . Slow oxidative fibers use aerobic metabolism to produce low power contractions over long periods and are slow to fatigue while fast oxidative fibers use aerobic metabolism to produce ATP but produce higher tension contractions than slow oxidative fibers.
What is muscle fibre?Muscle fibers consist of a single muscle cell and they help to control the physical forces within the body. When grouped together they can facilitate organized movement of limbs and tissues.
Therefore Skeletal muscle cells are the individual contractile cells within a muscle and are more usually known as muscle fibers because of their longer threadlike appearance.
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Suppose that a mutation in a coat color gene of a mouse alters an enzyme such that it produces a red pigment instead of the wild type, which is tan. This is a _____ mutation, which is most likely _______.
Answers
Answer:
The correct answer is - gain of function, and dominant.
Explanation:
A mutation in which the gene that altered carries out the production of the product that has a new pattern of gene expression or a new molecular function.
Function mutations are always gain by almost always Dominant or in some rare cases semi-dominant so, the mutation in a coat color gene of a mouse alters an enzyme such that it produces a red pigment instead of the wild type, which is tan. This is a gain of function mutation, which is most likely dominant.
The correct answer is - gain of function, and dominant.
In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BBFF x bbff cross would be expected to be heterozygous for both traits?
Answers
Answer:
100%
Explanation:
This question involves two genes in guinea pigs; one coding for fur color and the other for fur length. The alleles of black fur (B) and short fur (F) is dominant over the alleles for brown fur (b) and long fur (f).
In a cross between two offsprings with genotypes: BBFF x bbff, the following gametes will be produced by each parent:
BBFF - BF, BF, BF, and BF
bbff - bf, bf, bf, bf
Using these gametes in a punnet square (see attached image), one will notice that all of the offsprings will have the genotype: BbFf i.e all or 100% of the offsprings are heterozygous for both of the genes or traits.
why are most stray cats short haired cats
Answers
Most stray cats are short haired cats because according to the American Humane Society, roughly 95% of all cats are short hair cats.
What are cats?The cat is a domestic species of small carnivorous mammal which is the only domesticated species in the family Felidae and is commonly referred to as the domestic cat or house cat to distinguish it from the wild members of the family.
So most cats have shorts hairs and doesn't just apply to stray cats. Research claims that some people claim that long hair cats are more expensive and rare, so the owner is likely to take better care of them and keep them indoors.
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Question 1 In the past, Michael received $5 for completing his weekly chores. Michael has once again completed his chores, and he hopes to receive $5. According to social learning theory, this is referred to as O self-efficacy O reinforcement value O imitation O expectancy
Answers
According to social learning theory, this is referred to as expectancy. The correct option is D.
What is social learning theory?According to the social learning theory, people learn social conduct by seeing and copying the actions of others.
As an alternative to the earlier work of colleague psychologist B.F. Skinner, was noted for his influence on behaviorism, and Albert Bandura created the social learning theory open in new.
The feeling or hope that something fascinating, exciting, or positive is about to happen is known as expectation.
Therefore, the correct option is D, expectancy.
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Both Darwin and Wallace developed the same theory to account for their interpretations of the data they had observed. How can you account for Wallace’s view that his putting forth the theory of evolution would have been seen as simply an “ingenious (inventive) speculation” rather than the revolutionary effect of Darwin’s Origin of Species?
Answers
Both Darwin and Wallace developed the same theory to account for their interpretations of the data they had observed, but Wallace’s view would have been seen as simply an “ingenious (inventive) speculation rather than the revolutionary effect of Darwin’s Origin of Species because it is based on enviroment as a primary matter of change instead of genetic inherited variation.
What is the evolutionary theory proposed by Alfred Russel Wallace?The evolutionary theory proposed by Alfred Russel Wallace is a model to explain variation in nature based on the enviroment as the trigger of these changes instead of inheritance, which is opposite to the observations of Darwin who indicated variation is the primary matter of evolution.
Therefore, with this data, we can see that the evolutionary theory proposed by Alfred Russel Wallace was based and centered on the environment instead of variation, which today is considered erroneous.
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How do you find the “total magnification of something that you are viewing through a microscope?
Answers
multiply the power of the eyepiece and objective lense Explanation:
Answer:
To figure the total magnification of an image that you are viewing through the microscope is really quite simple. To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece, usually 10X.
Explanation:
*Hope this helped*
Billy clearly has a hemolytic anemia that is consistent with hereditary spherocytosis. I believe that, given his sudden and severe presentation along with his recent illness, he has aplastic crisis. This is likely brought on from infection from the parvo B19 virus. His flow murmur and slow cap refill are concerning for continued hypovolemia.
According to the information, which of the following statements is TRUE?
a. Billy clearly has a reduced blood cell count caused by red blood cells not being formed.
b. Billy continues to have too much blood in his system.
c. Billy’s condition can be classified as both abrupt and acute.
d. Even though no one in his family has this condition, Billy has developed a condition in which his red blood cells are abnormally shaped.
e. Billy’s symptoms are consistent with blood cells that are shaped like crescents.
Answers
According to the provided information, the true statement is that Billy's condition can be classified as both abrupt and acute.
The information states that Billy has a sudden and severe presentation, along with a recent illness and aplastic crisis. Aplastic crisis refers to a sudden decrease in red blood cell production. This aligns with the term "abrupt," indicating a sudden onset or change in Billy's condition. Additionally, the term "acute" refers to a condition that develops rapidly and has a short duration, which is consistent with the sudden and severe presentation mentioned.
The other statements do not align with the provided information. Statement (a) states that Billy has a reduced blood cell count caused by red blood cells not being formed, but the specific cause of reduced red blood cell count is not mentioned in the given information. Statement (b) suggests that Billy continues to have too much blood in his system, which is not supported by the information provided. Statement (d) mentions an abnormal shape of red blood cells, which is not specified in the given information. Statement (e) refers to blood cells shaped like crescents, which is not mentioned or implied in the given information.
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If red flower color (R) is dominant and white (r) recessive, a plant with white flowers would have a genotype of ___ .
RR
rr
Rr
rR
Answers
If red flower color (R) is dominant and white (r) recessive, a plant with white flowers would have a genotype of _rr__ .
A plant with white flowers would have a genotype of rr, as the trait for white flowers is recessive and requires two copies of the recessive allele (r) to be expressed.
In this scenario, a plant with white flowers would have a genotype of rr.
Red flower color (R) is dominant, and white flower color (r) is recessive.
Dominant traits only need one copy of the gene to be expressed, while recessive traits require two copies of the gene.
Since the plant has white flowers, it must have two copies of the recessive gene (r) to express the white color.
Therefore, the genotype for a plant with white flowers is rr.
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imagine that a rat in an operant conditioning chamber is performing very well. he moves the pole and we give him a food pellet every time. then we start a new phase. now we will give him food pellets once, on average, every 15 s, regardless of what he is doing. with this phase change we have switched from contigent to non-contigent reinforcement.
Answers
Operant conditioning is a type of learning where behavior is changed through either reinforcement or punishment methods.
What is the meaning of operant conditioning?Operant conditioning is a type of learning where behavior is changed through either reinforcement or punishment. Reinforcement is used to increase the probability of a behavior happening again while punishment is used to decrease the likelihood of a behavior happening again. A rat in an operant conditioning chamber is performing well.
A food pellet is given every time the rat moves the pole. The rat is then taught that by doing the right thing, it will receive food. However, in the next phase, food pellets are given once every 15 seconds regardless of what the rat is doing. With this phase change, we have switched from contingent to non-contingent reinforcement.
Contingent reinforcement is a type of operant conditioning where the behavior being rewarded is happening immediately after the desired behavior. For example, a rat receives a food pellet every time it moves the pole.
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1 point
3. When gametes (sex cells) are produced from a body cell during normal
meiosis, which of the following describes the number of chromosomes in
each new sex cell? *
A. Each resulting cell has the same number of chromosomes as the original body cell.
B. Each resulting cell has twice the number of chromosomes as the original body cell.
C. Each resulting cell has one-half the number of chromosomes as the original body
cell
D. Each resulting cell has one-fourth the number of chromosomes as the original body
cell.
Answers
Answer:
B
Explanation:
The process of substances using a protein channel to help move from areas of high concentration to areas of low concentration without using cell energy is called: *
1. Diffusion
2. Active Transport
3. Facilitated duffusion
4. Osmosis
Answers
What are the first questions you will ask upon arrival at GNMH to begin your investigation?
Answers
Answer:
''What is your problem'' is the first question i will ask when a patient arrived at GNMH in order to fully know the condition of the patient
Explanation:
The products of photosynthesis (glucose and oxygen) are used in cellular respiration. The products of cellular respiration (water, and carbon dioxide ) are used in photosynthesis.
A. True
B. False
Answers
Answer:
A. True
Explanation:
The processes of photosynthesis and cellular respiration are extremely correlated because they are part of the same cycle. They are both in the carbon cycle. This works because they each produce what the other needs. It is a constant back and forth reusing the same atoms and cycling all of the molecules. This allows the world to never run out of carbon or other important elements.
Answer:
A. True
Explanation:
Yes, the products of photosynthesis (glucose and oxygen) are used in cellular respiration. The products of cellular respiration (water, and carbon dioxide ) are used in photosynthesis.
Energy needed for chemical reactions in the body is provided by the breakdown of
RNA, ATP, ADP, OR DNA?
Answers
The energy needed for chemical reactions in the body is provided by the breakdown or hydrolysis of ATP.
What is ATP?Adenosine triphosphate (ATP) is a higher energy molecule that is used to carry out cellular functions by breaking down their phosphate bonds.
ATP is produced in the body by means of a process known as cellular respiration and serves to carry out different metabolic functions (e.g., growth, reproduction, etc).
The hydrolysis of high-energy phosphate bonds present in the ATP molecule is required to perform many different physiological processes in multicellular organisms.
In conclusion, the energy needed for chemical reactions in the body is provided by the breakdown or hydrolysis of ATP.
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distinguishing features of sharks include: multiple select question. viviparity in all species. continual replacement of teeth. single circulation. a bony skeleton. external fertilization. a lateral line system. buoyancy maintained by an oil-filled liver.
Answers
The distinguishing features of sharks include: continual replacement of teeth, a cartilaginous skeleton (not bony), a lateral line system, and buoyancy maintained by an oil-filled liver.
The distinguishing features of sharks include multiple select options such as continual replacement of teeth, a lateral line system, buoyancy maintained by an oil-filled liver, and a bony skeleton. However, not all sharks exhibit viviparity or external fertilization, and they also have a single circulation system.
Sharks can be identified by their constantly replaced teeth, cartilaginous (as opposed to bony) skeleton, lateral line system, and buoyancy supported by an oil-filled liver.
The distinctive characteristics of sharks include a number of particular traits, including the replacement of teeth on a regular basis, a lateral line system, buoyancy supported by an oil-filled liver, and a skeletal skeleton. Sharks have a single circulatory system and some do not display viviparity or external fertilisation.
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which of the following correctly describes the stereospecific formation of a citric acid cycle intermediate?
Answers
The correct option that describes the stereospecific formation of a citric acid cycle intermediate is "Only one of the enantiomers of aconitate can be formed enzymatically from isocitrate."
The Citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins. Citric acid cycle intermediate can be formed stereo specifically indicating that only one of the enantiomers is generated.
In the citric acid cycle, the intermediate isocitrate is oxidized by NAD+, creating α-ketoglutarate and NADH while decarboxylating CO2. Afterward, aconitase catalyzes the stereospecific transformation of isocitrate to cis-aconitate and then to trans-aconitate in a two-step reaction.Cis-aconitate and trans-aconitate are isomeric; nonetheless, only one of these isomers is made stereospecifically from isocitrate enzymatically. Cis-aconitate is eventually converted to the cis-isomer through the action of aconitase, which then converts it to isocitrate.
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Discuss the following using diagrams :
1) Bacteria and types.
2) Algae.
3) viruses.
( indicate source)
Answers
Bacteria, viruses and algae are types of living organisms.
What are the listed organisms?Bacteria are single-celled microorganisms that belong to the prokaryotic domain. They are one of the most diverse and abundant forms of life on Earth. Bacteria can be found in various habitats, including soil, water, and even within the human body.
Algae are a diverse group of photosynthetic organisms that can be found in both aquatic and terrestrial environments. They are eukaryotic organisms, meaning they have complex cells with a nucleus and other organelles.
Viruses are infectious agents that consist of genetic material (DNA or RNA) surrounded by a protein coat. Unlike bacteria and algae, viruses are acellular entities and require a host cell to replicate.
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which type of glial cell produces the myelin sheath in the pns?
Answers
The type of glial cell that produces the myelin sheath in the peripheral nervous system (PNS) is called Schwann cells. These cells wrap around the axons of neurons and create a layer of myelin, which serves as an insulating material that increases the speed of nerve impulses.
Schwann cells also play a crucial role in nerve regeneration after injury, as they can divide and create new myelin sheaths around damaged axons. In contrast, in the central nervous system (CNS), oligodendrocytes produce myelin sheaths.
Understanding the different types of glial cells and their functions is essential in understanding how the nervous system works and how it responds to injury or disease.
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What are the functions of sugars
Answers
Answer:
the provide the energy u need
Explanation: