Answer:
The correct option is D. Helicase is the enzyme that unwinds that double stranded DNA at the beginning of DNA replication.
Explanation:
DNA replication can be described as a process by which the strand of DNA gets duplicated into two new daughter strands.
Helicases can be described as the enzymes whose main function is to unwind the double helix structure of the DNA. The helicases break the hydrogen bonds present between the two strands of DNA. The helicases are the first machinery for DNA replication as they form the replication fork and begin unwinding of the DNA from the origin of replication
Answer: Helicase
Explanation:
DNA is the genetic material which is found in all the organisms except few. It carries the genetic information from one generation to another generation.
The Enzyme named helicase unwinds the double helix model of DNA. It helps in unwinding of the DNA by breaking the hydrogen bonds in between them.
It starts from the origin of replication and forms a replication fork by separating the two strands.These two separated strands are known as the parental strands.
The atomic bomb resulted from a nuclear _____.
Answer:
chain reaction
Explanation:
The atomic bomb resulted from a nuclear chain reaction. The atomic bomb is produced by a chain of nuclear fission reactions.
Which of the following best explains why clear-cutting forests is more destructive than selectively cutting down trees in forests? a. Clear-cutting eliminates all trees leaving none behind to maintain soil fertility or house native animals. b. Clear-cutting places the land at greater risk for wildfires. c. Clear-cutting makes land more attractive for human development. d. Clear-cutting causes less soil erosion than selective cutting.
Answer:
a. Clear-cutting eliminates all trees leaving none behind to maintain soil fertility or house native animals
Explanation:
The clear-cutting is a process that is very dangerous and harmful for the environment, but also for the humans on the long term. Through this process, the vegetation is totally removed, all trees and shrubs are eliminated. This leaves the soil barren and vulnerable, as it doesn't have a protection from the erosion, thus it is eroded very quickly. Also, the soil losses the plants that have been keeping its fertility at a certain level, so it become infertile very quickly. There's no trees left so that the area can recover, and it will take a very long period that the nature can recover at those places. The animals lose their habitats, so they die out, and the ones that are endangered may even go extinct.
Answer:
its a did the test
Explanation
A boundary between nonsedimentary and sedimentary rocks is an example of which type of unconformity?
A. Nonconformity
B. Angular unconformity
C. Paraconformity
D. Disconformity
Answer:
A boundary between non-sedimentary and sedimentary rocks is an example of nonconformity.
Explanation:
Nonconformity happen when sedimentary rocks are deposited on igneous and metamorphic rocks.
This sedimentation forms a boundary between the surfaces of the two rocks.
This gap that is formed is what is referred to as an unconformity, the specific unconformity above is non-conformity.
Answer:
A. Nonconformity
Explanation:
Describe how a fossil would form through mineral replacement.
A fossil would from through mineral replacement by replacing the existing material of the animals bones with minerals, to become petrified. The Minerals will keep the fossil preserved longer.
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Final answer:
A fossil can form through mineral replacement when the original organism's material is replaced by a secondary mineral, preserving detailed structures and aided by sediment accumulation and permineralization.
Explanation:
A fossil forms through mineral replacement when the original skeletal material of an organism is substituted molecule-by-molecule by a secondary mineral, such as silica (quartz), pyrite, dolomite, or hematite.
This process can preserve the fine cellular details of the original organism, despite a change in its composition.
Sediment accumulation is crucial in providing the minerals and pressure necessary for mineralization.
During permineralization, the sediments' minerals fully replace the organism, creating a mineral copy of the original organism, which can occur with or without replacement.
What is ATP?. What does it do?. How do organisms get ATP?.
ATP, or adenosine triphosphate, is the primary energy cash in cells. It discharges energy upon hydrolysis, which is utilized for different cell capabilities. Through cellular respiration of carbohydrates, organisms generate ATP.
ATP is basic for different cell works and goes about as a power hotspot for cycles like muscle withdrawal, nerve drive engendering, and substance union. ATP stores and transports compound energy inside cells. At the point when the cell requires energy, ATP goes through hydrolysis, delivering one of its three phosphate gatherings. As a result of this reaction, ATP is transformed into adenosine diphosphate (ADP) or adenosine monophosphate (AMP), both of which can be utilized for cellular functions. Life forms produce ATP essentially through an interaction called cell breath. In order to produce ATP, carbohydrates like glucose must be broken down in the presence of oxygen in this process. Cell breath incorporates a few phases: glycolysis, the citrus extract cycle, and oxidative phosphorylation, each adding to the union of ATP.how do whales differ from fish
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Information Provided In Image Below
Answer: whales use a blowhole to breath were fish use gills
Explanation:
Which one of the following pair of alleles shows homozygous dominate genotype TT Tt tt
Answer:
TT
Explanation:
Dominant alleles are the ones in uppercase and recessive in lowercase, but we see one that has uppercase and lowercase. Well, it is heterozygous. Homozygous are genotypes that have two equal alleles, like tt or TT. Heterozygous have two different. Tt is heterozygous TT is homozygous dominant. Also tt are homozygous recessive, which means that it has both non-dominant alleles.
The allele is defined as the variant form of the gene, which is present on the same locus of chromosome as the gene.
Alleles and Their Makeup Alleles codes for two or more different traits. The combination of alleles can be heterozygous or purebred.
The heterozygous pair includes one dominant and one recessive allele, whereas the purebred genotype involves either both dominant or both recessive.In the following pair of alleles, the genotype of the purebred dominant trait is TT.
Thus, the genotype of the allelic pairs is used to study the traits of generations. TT is the dominant purebred genotype of the given allele.
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Find the missing value to the nearest hundredth tan =26
Answer:
delete this answer.
Explanation:
Tangent of 26 is about 0.49 in the nearest hundredth.
5. _______ is the process where plastic-eating fungi are sent to landfills.
A. Biodiversity expansion
B. Biological augmentation
C. Pollution cleanup
D. Bioremediation
Biological agumentation is the process where plastic-eating fungi are sent to landfills.
Answer: Option B
Explanation:
The process of using living microbes to clear the landfills is called as biological agumentation or bioaugmentation. Bioaugmentation, for the most part, requires concentrating the indigenous assortments present in the area to decide whether biostimulation is conceivable.
Usually in this process, microbes such as bacteria, fungi etc are utilized. In case of landfills filled with plastics, fungi species which has the ability to degrade the plastic are used in this process.
Bioremediation is the correct term for the process where plastic-eating fungi are used in landfills to break down plastic waste into less toxic or non-toxic substances. The correct option is D.
The process where plastic-eating fungi are sent to landfills to break down the plastic materials is known as bioremediation. This is a waste management technique utilizing organisms such as fungi to remove or neutralize pollutants from a contaminated site, thus transforming hazardous substances into less toxic or non-toxic substances. An example of bioremediation is the use of certain plants to extract toxic metals from soils contaminated by mining operations, or using fungi to degrade plastics in landfills.
11. The behaviors and physical characteristics of
species that allow them to live successfully in their
environment are called ____.
Answer:
11. The behaviors and physical characteristics of species that allow them to live successfully in their environment are called adaptations.
Explanation:
Adaptations are a process that organisms go through to become better suited for their environment to help them be better suited to survive.
Why is there so little wind in the location where the atmosphere circulation cells meet?
Answer:
they are close together
Explanation:
is heat carried by the blood to the cells or away from the cells?
Answer:
excessive heat carried by the blood away from the cells..
Explanation:
because the heat would cause cell destruction, depending on circumstance..think of homeostasis..the body's way of keeping the body at a normal level...
Excessive heat is carried away from the cells. If heat is carried to the blood cells it would lead to cell destruction.
What is Heat?Heat is a form of energy. It is transferred from higher body temperature to lower body temperature. Heat transfer is the process of thermal energy exchange due to temperature differences.
Heat transfer takes via three modes conduction, convection, and radiation. In the human body, heat transfer takes place via conduction. The organisms maintain the body temperature of the body by thermoregulation.
Thermoregulation is a biological mechanism by which organisms maintain their internal body temperature.
Therefore, Excessive heat is carried away from the cells. If heat is carried to the blood cells it would lead to cell destruction.
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(03.02 MC)Which of the following statements describes what occurs with energy as a result of the Law of Conservation of Energy?
A. The amount of energy before a process occurs is less than the energy after the process occurs.
B. The amount of energy before a process occurs is greater than the energy after the process occurs.
C. The amount of energy before a process occurs is equal to the energy after the process occurs.
D. The amount of energy before and after a process occurs is always equal to zero.
Answer:
The amount of energy before a process occurs is equal to the energy after the process occurs.- C.
Answer:
C
Explanation: i got it right on the exam
why must gametophyte cells divide by mitosis
Answer:
Haploid spores grows by mitosis and develops into gametophytes. In plants, there’s a little break between meiosis and the production of sperm and eggs. During that break, a separate little haploid plant grows.
In plants, meiosis occurs to produce the gametophyte. The gametophyte is already haploid, so it produces sperm and egg by mitosis.
So in other words it is important.
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[tex]Sofia[/tex]
The gametophyte cells must divide by mitosis because it lead to the formation of gametes cells which are haploids.
What is mitosis?Mitosis is the type of cell division that involves that involves the production of two identical daughter cells after division.
The plant is made up of gametophyte, which is formed from the spore and give rise to the haploid gametes through mitotic cell division.
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The Venn diagram details some of the helpful and harmful effects of bacteria. In what ways are viruses like bacteria?
A. Viruses are also pathogenic
B. Viruses are also decomposers
C. Viruses are also prokaryotes
D. Viruses can also cause food to spoil
Based on the image you provided, the way viruses are most like bacteria is that A. Viruses are also pathogenic.
Based on the Venn diagram you sent, the way viruses are most like bacteria is A. Viruses are also pathogenic, meaning they can cause disease.
Here's why the other options are not accurate:
B. Viruses are also decomposers: This is incorrect.
Bacteria can decompose organic matter, but viruses cannot.
They are not living organisms and lack the machinery to break down complex molecules.
C. Viruses are also prokaryotes: This is incorrect as well.
Bacteria are prokaryotic organisms, meaning they lack a nucleus and other membrane-bound organelles.
Viruses are not cells and have a much simpler structure.
D. Viruses can also cause food to spoil: While some viruses can contaminate food and cause spoilage, this is not their primary function.
Bacteria are much more common culprits in food spoilage due to their ability to reproduce rapidly and break down food components.
Therefore, the only shared characteristic highlighted in the diagram is the ability to cause disease.
It's important to remember that despite this similarity, viruses and bacteria are fundamentally different entities.
Bacteria are single-celled organisms, while viruses are much simpler and require a host to reproduce.
Which kingdom of organisms is most closely related to fungi?
Answer:
Kingdom Animalia
Explanation:
Answer:
Animalia kingdom is most closely related to fungi
Explanation:
The fungi kingdom was considered as a close relative to plants. The DNA and phylogenetic analysis shows that the fungi kingdom is more similar to kingdom animalia.
The both the kingdoms are not able to make their own food. The animalia and fungi are are consumers. Thus, fungi is closely related to animalia.
What type of industry produces two-thirds of all sulfur dioxide that pollutes the air?
Answer:
Electric power plants
an increase in skin cancer can be traced to a decrease in atmospheric
Answer:
an increase in skin cancer can be traced to a decrease in atmospheric ozone.
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An increase in skin cancer can be traced to a decrease in atmospheric Ozone.
Explanation:
Exposure of the skin to ultraviolet rays is a major risk factor that triggers skin cancer and is one of the growing concerns in recent times. BCCs or basal cell carcinoma is also known as rodent ulcers and occur generally in the areas exposed in the sun which damages the local tissue in human beings. Patients with this disease are usually fair skinned and burn more than dark skinned people in sunlight.
It may also develop during childhood, when a child is exposed in the sun for long periods. One of the most serious forms of skin cancer is Malignant melanoma which happens due to exposure of the body to the harmful UV radiations which in turn happens due to the ozone layer depletion, which stops the harmful rays of the sun from coming to the earth.
In humans, having wet earwax is a dominant trait. Having dry earwax is recessive. The man has one recessive allele and one dominant allele and his phenotype is that the man would be dominant with wet earwax.
a) A woman has two dominant alleles. What is her phenotype?
B) if this man and woman have a child, is it possible for their child to have dry earwax? explain.
Her phenotype is to have wet earwax
No, the woman has 2 dominate traits and the man has 1 recessive, they need atleast 1 each
Answer: what type of question is this but the answer would be be because he still has one recessive trait if the woman has a dominant trait both dominant traits and he has one dominant trait and recessive trait they have a 75% chance of coming out with wet earwax and a 25% chance coming out with dry earwax because there's always that possibility because of that recessive trait it's rare but a possibility
Explanation:
Nitrogenous bases are located on both strands of the DNA double helix. What is the significance of the nitrogenous bases?
Answer:
Nitrogenous bases bind nucleic acids together. Hope this helps!
Explanation:
Nitrogenous bases in DNA provide the genetic code and determine the sequence of amino acids in proteins.
Explanation:The significance of the nitrogenous bases in DNA is that they provide the genetic code and determine the sequence of amino acids in proteins. There are four nitrogenous bases in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). The order and combination of these bases along the DNA strand determine the genetic information and traits of an organism.
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Compare the two theories regarding the evolution of dinosaurs and then consider the cladogram above. Although the two theories differ on the evolutionary path of dinosaurs, they agree that
A) dinosaurs, reptiles, and birds had a common ancestor.
B) dinosaurs evolved much later than birds or reptiles.
C) the branch containing dinosaurs evolved before either reptiles or birds.
D) dinosaurs should be on the same main branch as snakes, lizards and crocodiles.
Answer:
A) dinosaurs, reptiles, and birds had a common ancestor
Explanation:
The dinosaurs have not evolved as a separate phylum that has not close relations with other animals, but instead they share a common ancestor with the likes of the reptiles and the birds. The reptilians have actually emerged before the dinosaurs, but the dinosaurs managed to take up the top niches in the food chain after they appeared never the less. The birds on the other hand are actually an evolutionary product of the diversification of the dinosaurs. the birds have actually evolved from small bipedal dinosaurs, that over time started to take up new way of life and appearance in order to conquer the skies.
Answer:
A
Explanation:
A farmer observed that an increase in the nitrogen content of the soil in a field was followed by an increase in producer productivity. What does this observation most likely indicate about the relationship between nitrogen and the producers in the field?
1Points
A
Nitrogen was a biotic factor.
B
Nitrogen was a limiting factor.
C
Nitrogen became a surplus resource.
D
Nitrogen became a selection pressure.
Answer:
Nitrogen was a limiting factor
what part if the reproductive system is highlighted below
Answer:
B: Epididymus
Explanation:
The highlighted part represents Epididymus of male reproductive system in human. It is a coiled tube like structure present at the top of each testes in human males. Sperm are produced in seminiferous tubules of the testes and are transported from rete testes to epididymus. Function of epididymus is to storage the sperms and to serve as site for their final maturation.
Epididymus is highlighted below in the reproductive system. Hence the correct option is b.
The epididymis is a crucial component of the male reproductive system, responsible for the maturation and storage of sperm. It is a tightly coiled tube located on the posterior surface of each testis. Sperm produced in the testes are not immediately capable of fertilization. They must undergo a process of maturation within the epididymis, which involves acquiring motility and the ability to fertilize an egg.
The epididymis is divided into three segments: the head, body, and tail. The head receives immature sperm from the testes, and as sperm move through the body and tail regions, they undergo changes that enable them to swim and navigate through the female reproductive tract during fertilization.
Furthermore, the epididymis serves as a storage site for mature sperm, capable of being released during ejaculation. When sexual arousal triggers ejaculation, the epididymal muscles propel the sperm into the vas deferens, a duct that carries sperm from the epididymis to the urethra. Hence the correct option is b.
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Which statement best describes the domain of the function represented in the graph?
Answer:
Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
Which substance is a compound? water gold oxygen hydroge
Answer:
Water
Explanation:
An element is a substance which cannot be split into further elements. Such substances contain single type of atoms. For example, gold, oxygen and hydrogen etc.
A compound is formed of chemical combination of two or more elements. For example water is a compound formed by chemical combination of hydrogen and oxygen elements.
Water is a compound made up of two elements, hydrogen and oxygen, chemically bonded together.
Explanation:Out of the given options, water is a compound. A compound is a substance made up of two or more elements chemically combined in a fixed ratio. Water (H2O) is made up of two elements, hydrogen (H) and oxygen (O), chemically bonded together. In contrast, gold, oxygen, and hydroge (assuming it was meant to be hydrogen) are elements, not compounds. Gold (Au) is an element, oxygen (O2) is composed of two oxygen atoms and is also an element, and hydrogen (H2) is also made up of two hydrogen atoms and is an element as well.
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Embryonic stem cells are cells derived from an embryo. These cells can be used to create new tissues for patients suffering from certain illnesses and disorders. Which statement best summarizes why the use of embryonic stem cells could be seen as unethical?
A.
Some people consider embryos to possess rights equal to those of fully developed human beings.
B.
Extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere.
C.
Embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit.
D.
The process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.
Answer:
Option A, Some people consider embryos to possess rights equal to those of fully developed human beings.
Explanation:
When stem cells are derived from embryo, the embryo dies in lieu to end of its cell development and this happens because stem cells are the only cells that have potential to develop an embryo by producing more stem cells and differentiating them into specific organs.
In most of the study, embryonic stem cells are derived from embryos that are obtained from IVF technique as an spare embryo. But this act is considered unethical as embryos have life within them and hence they also have rights equal to a fully developed human being.
Hence, option A is correct.
Answer:
A for plato
Explanation:
Which sentence describes an example of a positive feedback loop?
A: Warm blooded animals were when they get too hot. Sweating as a method by which the body close itself.
B: A thermostat regulates. Temperature by turning a furnace or air conditioner on and off.
C: When blood flows from a mild cut, blood clots form to prevent excessive bleeding.
D: As oceans get hotter, they release more CO2, which then increases atmospheric and ocean temperatures.
The example of a positive feedback loop from the provided options is D: As oceans get hotter, they release more CO2, which then increases atmospheric and ocean temperatures.
Explanation:The question relates to the concept of feedback loops in biological systems, particularly the difference between negative and positive feedback loops. The sentence that describes an example of a positive feedback loop is: As oceans get hotter, they release more CO2, which then increases atmospheric and ocean temperatures (option D). This example illustrates how a change in the system leads to an increase in the response, further promoting the initial stimulus, which is characteristic of a positive feedback loop. In contrast, negative feedback loops involve actions that counteract a change, aiming to maintain or reduce the response.
are predator-prey relationships density-dependent or density-independent limiting factors explain
Answer: Density dependent
Explanation: It is a density dependent because there has is a direct correlation between the ratio of predatory animals to prey animals for an ecosystem to function properly. Otherwise the ecosystem begins to die.
Predator-prey relationships act as density-dependent limiting factors in ecosystems, affecting population sizes based on the density of the populations involved. These biological interactions include predation and competition, which can increase mortality or decrease reproductive rates.
Explanation:Predator-prey relationships are typically considered density-dependent limiting factors in ecosystem dynamics. This means that the effects of these relationships on population sizes vary with the density of the population. For instance, as the prey population increases, it provides more food for predators, which can result in an increase in the predator population. However, as the predator population grows, it starts to reduce the prey population through increased predation. Conversely, when prey becomes less abundant, predator numbers may decline due to the scarcity of food.
Density-dependent factors such as predation, competition for food, disease, and waste accumulation are biotic factors that often lead to increased mortality or reduced reproduction rates within populations, thus regulating their sizes. These factors intensify as the population density increases, demonstrating a direct correlation between the impact of these factors and the number of individuals in a population.
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A straight line on a graph indicates that there is a ____ relationships between the dependent varible and the independent variable
Answer:
The answer is linear.
Explanation:
Hope my answer has helped you! :)
The answer is linear :)
Hope this helps
Natural selection of favorable adaptations in organisms often results in A. the inheritance of acquired traits. B. the evolution of a species. C. the elimination of favorable traits. D. an increase in genetic mutations.
Answer:
B. The evolution of species.
Explanation:
Answer:
B
Explanation: