Answers
Answer:
im pretty sure its E
Explanation:
The sources of low-level radiation are A) medical X-rays and E) the burning of fossil fuels, so the correct answer is E) a and c only, as radiation can be classified into two main types: ionizing radiation and non-ionizing radiation.
What is radiation?Medical X-rays are a type of ionizing radiation used for medical imaging. Although the amount of radiation exposure from a single X-ray is usually very small, frequent exposure to X-rays can increase the risk of cancer. The use of X-rays in medical imaging is carefully monitored to ensure that the benefits outweigh the risks. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, which can cause damage to living tissue and increase the risk of cancer. Medical X-rays and the burning of fossil fuels are sources of ionizing radiation that can produce low-level radiation.
Hence, the sources of low-level radiation are A) medical X-rays and E) the burning of fossil fuels, so the correct answer is E) a and c only.
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Related Questions
Click on the producer in this food web.
Answers
Answer: Algae
Explanation: Producers are plants within an ecosystem, the only organism that is a plant present would be the algae, they can photosynthesis their own food.
Hope this help!
Which graph below best represents the relationship between the relative number of nuclei, genes, and chromosomes in a typical human cell?
A)
B)
C)
D)
The cells in the diagram below were present in the same individual.
Skin
• Muscle
Nerve
These cells are most similar in the
A) amount of energy they release
B) type of proteins they synthesize
C) rate of their metabolism
D) information stored in their DNA
4. The diagram below represents the organization of structures within an organism.
Which term best indicates the structures represented by the circle labeled X?
A) organelles
B) chromosomes
C) organ systems
D) tissues
Answers
The correct graph representing the relationship between the relative number of nuclei, genes, and chromosomes in a typical human cell would be graph C.
The cells (skin, muscle, nerve) are most similar in the B. type of proteins they synthesize, as protein synthesis is a fundamental process carried out by all cells to perform their specific functions.
The term that best indicates the structures represented by the circle labeled X in the diagram is A. organelles, which are specialized compartments within cells that perform specific functions to support cellular processes.
The graph that best represents the relationship between the relative number of nuclei, genes, and chromosomes in a typical human cell is graph C. In this graph, the number of nuclei, genes, and chromosomes increases together in a linear manner, indicating a consistent relationship between these components.
The cells in the diagram (skin, muscle, nerve) are most similar in the type of proteins they synthesize. While these cell types have different functions and characteristics, they all share the basic machinery for protein synthesis, which is essential for their respective functions.
The structures represented by the circle labeled X in the diagram are organelles. Organelles are specialized structures within cells that perform specific functions. They are typically membrane-bound and carry out various cellular processes such as energy production, protein synthesis, and waste removal. Examples of organelles include mitochondria, endoplasmic reticulum, and Golgi apparatus.
It is important to note that the specific context and details of the diagrams would be helpful for providing a more accurate explanation.
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Consider a major environmental change. If there are no organisms in a population that have traits that allow them to continue to reproduce and survive, what would most likely happen to that population?
Answers
If a living organism does not have any other organism like it in its environment,
That organism will die in a very short period of time.
Thank you!
can some one help me with this please
Answers
Answer:
5 answer is c
6 answer is a
Explanation: your welcome
Select the photosynthetic molecule that gives halobacteria its unique color.
a.) Caratenoids
b.)Thylakoids
c.)Bacteriochlorophylls
d.)Bacteriorhodopsin
Answers
Answer:
Bacteriorhodopsin
Explanation:
Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.
What is a law?
A. A well-tested explanation as to why something occurs that is generally accepted
B. An assumption made about an experience
C. A scientific explanation for a set of observations that can be tested
D. A proven, universal truth that states what happens
Answers
Answer:
I would say D
Explanation:
A law is saying WHAT is happening
A theory is saying WHY it is happening
Answer: D. A proven, universal truth that states what happens
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. Laws have not had any contradicting observations.
What are Bald eagle homologous structures
Answers
The wing of a bald eagle is homologous to the wing of a penguin. Homologous structures are structures that are of similar evolutionary origin.
How do we explain?Homologous structures are described as anatomical features found in different species that have a common evolutionary origin. These structures may have different functions in different organisms, but they share a similar underlying structure and can be traced back to a common ancestor.
The wing of a bald eagle and the wing of a penguin are considered homologous structures because they both evolved from a common ancestral structure, even though they serve different purposes which is flight in the case of the bald eagle and swimming in the case of the penguin.
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What might happen if water molecules didn't have a slight negative charge on one end and a slight positive charge on the other?
Answers
The polarity of water molecules is crucial to the formation and stability of cell membranes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes .
Water molecules are composed of two hydrogen atoms and one oxygen atom, and they have a slight negative charge on one end and a slight positive charge on the other.
This arrangement is due to the unequal sharing of electrons between the atoms, with the oxygen atom having a stronger pull on the electrons than the hydrogen atoms. This phenomenon is called polarity, and it is crucial to the unique properties of water.
First, water molecules would not be able to form hydrogen bonds with each other, which are crucial for many of water's unique properties. Hydrogen bonds occur between the positive and negative ends of different water molecules and give water its high boiling point, high surface tension, and the ability to dissolve many substances.
Furthermore, the polarity of water molecules is crucial to the formation and stability of cell membranes. The hydrophilic, or water-loving, heads of phospholipids are attracted to the polar water molecules, while the hydrophobic, or water-fearing, tails face away from the water.
In summary, the polarity of water molecules is crucial to many of its unique properties and is essential to many biological processes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes.
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Why do different colors affect photosynthesis differently
Answers
Answer:
Plants do respond differently to different colors of light being shone on them, because chlorophyll reflects green light and absorbs blue and red (therefore, blue and red are useful for photosynthesis, but green isn't).
Explanation:
Based on the original data collected from the population of 1,128 birds, what fraction of the population would be expected to have the SS genotype if the population was in Hardy-Weinberg equilibrium?
A. 0.466
B. 0.534
C. 0.285
D. 0.217
Answers
Complete question:
Beak Length in Finches
In a certain population of finches, a single gene controls beak length. There are two possible alleles: S, which leads to a short beak, and s, which leads to a long beak. Individuals with the genotype SS will have a short beak, individuals with the genotype ss will have a long beak, and individuals with the genotype Ss will have a medium-length beak. Scientists measure that in this population of 1,128 total birds, 321 birds have short beaks, 562 have medium-length beaks, and 245 have long beaks.
Based on the original data collected from the population of 1,128 birds, what fraction of the population would be expected to have the SS genotype if the population was in Hardy-Weinberg equilibrium?
A. 0.466
B. 0.534
C. 0.285
D. 0.217
Answer:
The correct option is C. 0.285
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Answer:
C. 0.285
Explanation:
Just wanted to confirm the answer.
How are pressure measurements related to weather prediction?
A. stable pressure indicates snowy weather
B. Low pressure indicates stormy weather
C. High, and also increasing, pressure indicates stormy weather
D. Decreasing pressure indicates a change in weather
Answers
B. Low pressure indicates stormy weather is how pressure measurements are related to weather prediction.
Weather forecasting involves utilizing technology and scientific expertise to predict the atmospheric conditions that will prevail in a specific location. Low-pressure areas, characterized by thinner air, are typically associated with specific wind patterns.
The movement of winds in these regions often results in the ascent of air, leading to cloud formation and condensation. Storms occurring in low-pressure areas tend to exhibit well-organized structures.
Active weather conditions are primarily caused by low-pressure systems. The relatively lighter air in these areas has a tendency to rise, leading to the creation of an unstable atmosphere.
Low-pressure systems are responsible for inducing active weather patterns, including gusty winds and rainfall, as well as potentially severe weather events.
Thus, option B is the correct answer.
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1. Which of the following is not evidence of an earthquake?
Cracks in the sidewalk
Bumps in the road
Rumbles and shakes
Precipitation
Answers
Answer:
precipitation would be the answer
If allele B made bacteria resistant to antibiotics, which of the following is correct
Answers
Answer:
The Bacteria population is less likely to be killed by antibiotics
4) Which of the following mediators induce systemic acute syndrome?
A) locally release mediators
B) cytokines
C) prostaglandins
D) All of above
5) The best definition of inflammation is:
A) Accumulation of water in the cells resulting from a failure of the sodium pump
B) Invasion of tissue by living pathogenic organisms
C) Margination of leukocytes along the vascular lining
D) Local reaction of the tissues to an injury
6) The ultimate purpose of the inflammatory response is to:
A) Increase fatty infiltration in the affected tissue in preparation for the process of
healing
B) Release lysosomes, which promote the synthesis of cellular proteins to promote
healing
C) Localize, destroy, neutralize, and remove injurious agents in preparation for the
process of healing
D) Restore function by promoting hydropic changes in cells
7) Which one of the following reactions occurs in an acute inflammatory
response?
A) Lymph flow decreases, producing edema.
B) Arterioles in the area dilate to produce active congestion.
C) Protein follows water into the interstitial spaces.
D) The permeability of the venules decreases because of the release of local chem
mediators.
Answers
4. Mediators induce systemic acute syndrome D) All of the above.
5. The best definition of inflammation D) Local reaction of the tissues to an injury.
6. The ultimate purpose of the inflammatory response is to: C) Localize, destroy, neutralize, and remove injurious agents in preparation for the process of healing.
7. The reactions occurs in an acute inflammatory response B) Arterioles in the area dilate to produce active congestion.
4. The systemic acute syndromeLocally released mediators, cytokines, and prostaglandins can all contribute to the systemic acute syndrome that can occur during inflammation.
5. Inflammation is a local response of the body's tissues to injury, infection, or other sources of irritation.
6. The ultimate purpose of the inflammatory response is to eliminate or contain injurious agents and initiate the healing process.
7. During the acute inflammatory response, arterioles in the affected area dilate, which increases blood flow and produces active congestion. This leads to the characteristic redness and warmth associated with inflammation.
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what are the 2 levels of classification used to identify plants for floral design purposes
Answers
The two levels of classification used to identify plants for floral design purposes are the genus and species.
These are part of the binomial nomenclature system developed by Carl Linnaeus in the 18th century and are used to provide a universal and standardized naming system for all living organisms.
The genus is a grouping of closely related species, and the species is a group of plants that share common characteristics and can interbreed to produce fertile offspring. Together, the genus and species names form a unique two-part name that identifies a specific plant.
For example, in the plant species Rosa, the genus is Rosa, and the species name could be Rugosa, Canina, or any other name that follows the genus name.
Identifying plants for floral design purposes using their genus and species names is essential for ensuring that the right plant is used for a specific purpose. It helps florists to choose the appropriate plant based on the plant's characteristics, such as color, texture, and size, ensuring that the final floral arrangement meets the customer's needs and expectations
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Match the correct action to what is happening in the cell.
1. Break open the cell
2. Dissolve the membranes 3. Separate the organelles, broken cell walls, and membranes from proteins, carbohydrates and DNA
4. Precipitate the DNA(clump the DNA together)
A. Squish the fruit to a slush
B. Filter your extract through cheesecloth
C. Layer cold alcohol over the extract
D. Mix in a detergent(soap) solution
Answers
Answer:
i have no idea you need to give me more info
Explanation:
Which description best explains how sperm cells compare to their parent cell?
O have identical amounts of DNA and are genetically identical
O have identical amounts of DNA and are genetically unique
O have half the amount of DNA and are genetically identical
O have half the amount of DNA and are genetically unique
Answers
The statement that best explains how sperm cells compare to their parent cell is as follows:
They have half the amount of DNA and are genetically unique.Thus, the correct option is D.
What are Sperm cells?Sperm cells may be defined as the male reproductive cells of animals and plants that can fuse with an egg cell in order to construct a new individual cell.
Sperm cells also known as gametes are significantly unique in comparison to most of the other cells in the body. Such a type of cell remarkably contains only half the amount of DNA.
When they successfully fuse with half of the amount of the DNA of the egg cells. They form a complete genome.
Therefore, the sperm cells have half the amount of DNA and are genetically unique to their parental cells.
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A student is given a list of traits and is asked to organize them in a Venn diagram as shown below.
Which traits should the student put in section I (Inherited)?
A) wolf's social status and blood type
B) skin color and a scar
C) tiger's stripes and blood type
D) a scar and wolf's social status
Answers
Answer:
C) tiger's stripes and blood type
Which square (A, B, C, or D) represents the repeating subunit of the polymer shown? Three dots then C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then a single line to a C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then a single line to a C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then a single line to a C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then a single line to a C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then a single line connecting to a C connected by single lines to H above and C H subscript 3 below. Then a single line to a C connected by single lines to one H each above and below. Then three dots. A box labeled A surrounds the first C and things connected above and below. A box labeled B surrounds the fourth C and things connected above and below. A box labeled C surrounds the seventh and eighth C's and things connected above and below. A box labeled D surrounds the last 2 C's only.
Answers
Answer:
C
Explanation:
.
Answer:
C is the correct answer. look at the pic below.
Explanation:
what is the relationship between photosynthesis respiration and heat
Answers
Answer:
Cellular respiration and photosynthesis are direct opposite reactions. Energy from the sun enters a plant and is converted into glucose during photosynthesis. Some of the energy is used to make ATP in the mitochondria during cellular respiration, and some is lost to the environment as heat.
Explanation:
which of the following is a correct statement? whales, bats, and humans share a common ancestor whale ancestors required more food than could be found on land, so they evolved features that could allow them to survive in the water. viruses mutate to acquire the best-adapted hemagglutinins throughout their evolution. mutations always lead to the improvement of a particular trai
Answers
The correct answer is option A. Whales, bats, and humans share a common ancestor.
This is because all three species have descended from the same type of ancestral mammal, evolving over time to take on different forms and characteristics.
For example, whale ancestors required more food than could be found on land, so they evolved features that could allow them to survive in the water. Similarly, bats evolved their wings to enable them to fly and humans evolved bipedalism, allowing them to walk on two feet.
Mutations are also a major factor in the evolution of species. These happen when the genetic code of an organism changes, resulting in a new version of a particular trait. For example, viruses mutate to acquire the best-adapted hemagglutinins throughout their evolution.
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The interior of the phospholipid bilayer is _______ meaning it repels polar molecules, such as water
Answers
The cell membrane's inside is hydrophobic, meaning that water won't cling to it. In order to effectively separate fluid inside the cell from fluid outside the cell, phospholipids form a two-layer cell membrane.
Why do polar molecules repelled by the phospholipid bilayer?Large hydrophilic polar or ionic molecules find it difficult to pass through the phospholipid bilayer. The cell membrane prevents the passage of any size charged atoms or molecules.
What component of the phospholipid bilayer is water-repellent?While the tails (the lipid component) are non-polar, the heads (the phospho part) are polar. The tails, which face the inside of the cell membrane, are "hydrophobic" (fearful of water), whereas the heads, which make up the exterior and inner linings, are "hydrophilic" (lovers of water).
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Help plz
environmental cues can affect gene expression and protein synthesis.
true or false
Answers
Answer:
pretty sure its true
Explanation:
Which of the following statements best describes the influence of the ocean on climate change? The ocean absorbs heat and carbon dioxide from the atmosphere.
The ocean releases oxygen into the atmosphere.
The ocean reflects heat from the sun out of the atmosphere.
The ocean absorbs heat and oxygen from the atmosphere.
Answers
Answer:
the answer to your question i'm pretty sure is the third one :the ocean absorbs heat and oxygen from the atmosphere.
Explanation: the ocean does not reflect the sun that's why when you get into the water in the beach it is warm if it is sunny out. and releasing oxygen into the air just does not make since. hope that helps
A paleontologist finds a relatively complete skeleton but isn’t sure if it is an ape fossil or a hominid fossil. Which of the following features would NOT help distinguish between the two choices?
a. position of the opening in the skull for the spinal cord
b. design of the pelvis
c. relative length of the hind limbs
d. position of the eyes
Answers
dịch kẽ còn được gọi là dịch gì
Answers
Answer:
Chất lỏng được tìm thấy trong các khoảng trống xung quanh các tế bào. Nó xuất phát từ các chất bị rò rỉ ra khỏi mao mạch máu (loại mạch máu nhỏ nhất). Khi chất lỏng kẽ mới được tạo ra, nó sẽ thay thế chất lỏng cũ chảy ra các mạch bạch huyết. Khi nó xâm nhập vào các mạch bạch huyết, nó được gọi là bạch huyết. Còn gọi là dịch mô.
Explanation:
Tôi hy vọng nó sẽ giúp. ; )
Considering the simulation of antibiotic resistance: briefly explain what happens to a diverse population of bacteria if they are treated repeatedly with the same antibiotic and not all of them die. What was the population's antibiotic resistance level before being exposed to the antibiotic (1 sentence)? What happened to the “good” and antibiotic-resistant bacteria when they were exposed to the antibiotic (1-3 sentences)? What was the population's antibiotic resistance level like after antibiotic treatment (1 sentence)?
Answers
Answer: A diverse population of bacteria that is treated repeatedly with the same antibiotic and not all of them die will eventually lead to the emergence of antibiotic-resistant bacteria that will thrive and become dominant. The population's antibiotic resistance level before being exposed to the antibiotic was low or non-existent. The "good" bacteria will die while the antibiotic-resistant bacteria will survive and reproduce. After antibiotic treatment, the population's antibiotic resistance level will be higher than before.
Explanation:
arrange the given terms in the hierarchy of their size ranging from smallest to largest depending upon the organization of the human body.
Answers
The biological levels of organization proposes the order of structures composing individuals and systems, organizing them from the smallest to the largest. 1) atom 2) molecules 3) organelles 4) cells 5) tissues6) organs and organ systems 7) organism, population, community 8) ecosystem 9) biosphere.
What are the levels of organization?
When talking about levels of biological organization, we are referring to the hierarchical order of the different structures that compose individuals and the systems in which they are immersed. It can go from the smallest things, such as subatomic structures, to the most complex systems, such as biomes.
From the smallest to the largest, we can mention
atommoleculecelltissueorganorgan system organismpopulationcommunityecosystembiomeatommoleculesorganellescellstissuesorgans and organ systemsorganism, population, communityecosystembiosphereYou can learn more about the levels of organization at
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Complete question,
Arrange the given terms in the hierarchy of their size ranging from smallest to largest depending upon the organization of the human body.
molecule
biosphere
atom
organelles
organs and organ systems
cells
tissues
organism, population, community
ecosystem
in general what causes a sea breeze
Answers
Answer:
The difference in air density between the land and sea cause y the sun's heating.
Explanation:
The sea breeze circulation is composed of two opposing flows; one at the surface (called the sea breeze) and one aloft (which is a return flow)
During his experiments with pea plants, Mendel referred to the trait that was expressed in the F1 or first filial generation as
A. recessive.
B. dominant.
C. codominant.
D. independent.
E. homozygous.
Answers
Answer: dominant
Explanation:Becuae the trait was present in all of the P1 generation