A cell must expend energy to accomplish substances movement during A osmosis B active transport C passive transport D diffusion E filtration
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Related Questions
a cut-off that allows a continuous (quantitative) measure to be treated as a dichotomous (discrete) measure
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The cut-off that allows a continuous (quantitative) measure to be treated as a dichotomous (discrete) measure is commonly referred to as a decision threshold or classification threshold.
In various fields such as statistics, data analysis, and machine learning, there are situations where it is necessary to convert a continuous variable into discrete categories.
This conversion simplifies the analysis or facilitates decision-making by classifying observations into distinct groups.
The decision threshold represents the value or point along the continuous scale at which the categorization is made.
Any observation above or below this threshold is assigned to one of the two discrete categories.
For example, let's consider a scenario where we have a continuous variable representing "income."
To classify individuals as "high income" or "low income," a decision threshold can be set.
Any individual with an income above the threshold is categorized as "high income," while those with an income below the threshold are categorized as "low income."
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Can any conclusions be drawn as to the types of habitats likely to contain the most microbes?
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Yes, a conclusion can be drawn that living surfaces contain more number of microbes as compared to non-living surfaces.
Microorganisms or microbes can be found in a lot of different conditions in the environment. This proves that they can thrive in a number of different conditions. All microbes require different environmental factors which can boost their growth. Some of them are able to survive in harsh cold habitats like in the ice and also in high temperatures like hot springs.
It has been observed that the number of microbes is high in habitats or surfaces which can suffice the need for nutrition and other factors of the microbe so that it is able to survive and it can be concluded that living surfaces, for example fungal spores, will have more microbes as compared to a non-living surface.
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explain metabolism as attribute of Living Organism
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Answer:
Metabolism involves exchanges of chemical matter with the external environment and extensive transformations of organic matter within the cells of a living organism. Metabolism generally involves the release or use of chemical energy. Nonliving things do not display metabolism.
Explanation:
Brainleast please
Help pls I’m very unsure with the answers I put.
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Answer:
I think so u are right keep going
Answer:
It is right. continue with it if anything we help
Which organelles are found in plant cells not animal cells?
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Answer:
Plants have a cell wall, plastids, and chloroplasts. If any of these are options, take your pick.
PLEASE HELP!! give legit answer plssss
Key Questions and Terms Notes
What types of muscles are in the body?
What are muscles?
What's the difference between voluntary muscles and involuntary muscles?
What are the different types of muscle tissue?
How do skeletal muscles work?
What five functions does the skeleton perform?
The backbone is made up of 26 small bones called ___________.
What are the characteristics of bones?
What role do joints play?
What are the two types of joints?
What are ligaments?
What is the role of the nervous system?
Which parts of the body make up the central nervous system?
Name the two main categories of the nervous system.
How do the muscular, skeletal, and nervous systems work together to maintain homeostasis?
What do sensory neurons do?
What do motor neurons do?
Nervous System Video:
Word Bank: brain, instincts, interpreted, organs, reflexes, spinal cord, senses Notes
The central nervous system includes the _______ and _______.
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
Paraplegic Will Walk Again with Exoskeleton at the World Cup Video:
Key Questions and Terms Notes
What animal did scientists study to create the brain–machine interface?
What does the exoskeleton use to power its movements?
What is the importance of this research?
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Answer:
Answer B
Explanation:
Plato
Communication competence is a performance-based index of an individual's abilities to effectively use communication behaviors in a given context.
true or false
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The given statement "Communication competence is a performance-based index of an individual's abilities to effectively use communication behaviors in a given context" is true.
It is a performance-based index that assesses the effectiveness of an individual's communication skills, knowledge, and attitudes in achieving communication goals in a particular situation. Communication competence involves the ability to understand and interpret messages, encode and decode messages accurately, use appropriate language and nonverbal behaviors, listen actively, and respond appropriately to feedback.
Effective communication is essential in various settings, such as personal relationships, professional environments, and public speaking.
Therefore, developing communication competence is critical for individuals who want to communicate effectively and achieve their communication goals in different contexts.
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What part of henry’s cochlea may have damaged hair cells? What part of henry’s cochlea may have functional hair cells?
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The henry's may have damaged and functional hair cells of cochlea in organ of corti.
Hearing and the Cochlea:
Sound waves that enter the ear go through the external auditory canal before they strike the eardrum and cause it to vibrate. The incus receives sound vibrations from the malleus, also called "hammer," which is linked to the eardrum, and sends them on to the stapes.The stapes is a framework that moves the oval window in and out. This motion is received by the cochlea, a fluid-filled snail-like structure that houses the organ of Corti, the hearing organ. Small hair cells make up the lining of the cochlea. These cells convert vibrations into electrical impulses that sensory nerves then transmit to the brain. the Corti organ, which has four rows of hair cells. On the left, there is an inner row, and on the right, there are three outside rows. The stapes first sways against the oblong glass. This causes sound waves to travel into the cochlear fluid and move the organ of Corti.Lower frequency sound resonates with fibers towards the cochlea's upper end. Higher frequencies elicit a response from those near the oval window.Learn more about the Structure of ear with the help of the given link:
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which is a term applied to an evolutionary process whereby humans modify, either intentionally or unintentionally, the genetic makeup of a population of plants or animals?
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Since modern humans are thought to have originated in Africa and have adapted to a variety of environments, African populations show large levels of genetic diversity and phenotypic variation.
Genetic diversity is the range of different hereditary traits within a species. In a species with great genetic diversity, there would be numerous individuals with a wide variety of unique features. Genetic diversity is necessary for a population to adapt to shifting environmental conditions. If a highly selected and low diversity strain—such as fish populations maintained for aquaculture—is introduced into a natural population, the capacity of that population to adapt to changes will be reduced. The different dog breeds that have been developed via selective breeding are one of the best examples of genetic diversity.
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What do the centrioles do?
a. help cell division b. generate energy c. help make protein d. protect the cell
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Answer:
The answer is:
a.Help cell division
which is the flu virus that is named based on its outer surface proteins (osp) hemagglutinin and neuraminidase
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Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: the hemagglutinin (H) and the neuraminidase (N).
Hemagglutinin (H) and neuraminidase, two proteins on the surface of influenza A viruses, are used to categorize them into different subtypes (N). There are 11 distinct neuraminidase subtypes and 18 distinct hemagglutinin subtypes (H1 through H18 and N1 through N11, respectively). Although more than 130 different influenza A subtype combinations have been found in nature, mostly in wild birds, there may be many more given the tendency for viral "reassortment." Influenza viruses exchange gene segments through a process called reassortment. When two influenza viruses infect the same host at the same time and swap genetic material, reassortment can happen. A(H1N1) and A(H3N2) are the two most common subtypes of influenza A viruses currently circulating in people (H3N2).
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Which of the following is evidence that a chemical reaction has taken place?
Check all that apply. *
- unexpected color change
- release/absorb heat energy
- melt from solid to liquid
- solid precipitate forms
- gas bubbles form
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Answer:
color change
release/absorb energy
solid precipitate forms
gas bubbles.
The wrong answer is melt from solid to liquid.
What term describes a developing organism between the three and eight weeks following conception in humans?
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The term that describes a developing organism between the three and eight weeks following conception in humans is Embryo.
An embryo is the first stage of a multicellular organism's development. Embryonic development is the phase of the life cycle that starts right after the male sperm cell fertilizes the female egg cell in sexually reproducing animals. The consequence of the union of these two cells is a single-celled zygote that divides numerous times to give rise to blastomere cells.
The term "embryo" usually refers to a developing human until the ninth week after conception, at which point the term "embryo".The term "embryo" can refer to any early developmental or life cycle stage that occurs before birth or hatching in other multicellular animals.
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When performing a standard plate count, plates that contain __________________ colonies are selected for counting with the quebec colony counter.
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When performing a standard plate count, plates that contain 30 - 300 Bacterial colonies are selected for counting with the Quebec colony counter.
The countable plate has between 30 and 300 colonies. More than 300 Bacterial colonies would be difficult to count, and less than 30 Bacterial colonies is too small a sample size to present an accurate representation of the original sample.
The Bacterial colonies is isolated with a colony-picking tool such as a toothpick, inoculation loop, or pipette tip. It is then inoculated in a solid or liquid cell culture medium where it is incubated overnight to encourage replication. The general formula to calculate CFU/ml is well known: The number of microbes/ml = number of Bacterial colonies x dilution of the sample. Between 0.3 ml and 0.5 ml of a suspension of indicator bacteria is required for each plate.
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Increased myelination of the central nervous system is related to improvement in _______ motor skill development.
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Answer:
Increase myelinated of the central nervous system is related to improvement in the transmisión of the electrical impulses and the motor skill development.
Explanation:
The punnet square illustrates a cross flower position in the pea plant . The phenotypes and genotypes of the parents have been given. The allele for axial position is dominant and represented by a. The allele for the terminal flower position is recessive and represented by a What is the genotype of the offspring?
Answers
Answer: Dominant
Explanation: It is 75% dominant
Students in a class are studying patterns of inheritance using genes involved in determining the body color and wing shape of Drosophila flies. Each of the genes has only two alleles, one of which is completely dominant to the other.
Each student in the class performed a parental cross between a fly that is true-breeding for ebony body and vestigial wings and a fly that is true-breeding for gray body and long wings. Each student then crossed several pairs of the F1
flies and determined the phenotypes of 500 of the resulting F2
flies with respect to body color and wing shape. The students in the class averaged their data for the frequencies of the four possible phenotypes (Table 1).
The students performed a second cross. The parental cross was between flies that are true-breeding for gray bodies and long wings and flies that are true-breeding for ebony bodies and curly wings. They crossed pairs of F1
flies and determined the phenotypes of the resulting F2
flies. The students found an approximate 3:1
ratio of flies with the dominant phenotype (gray bodies and long wings) to flies with the recessive phenotype (ebony bodies and curly wings). Only a few of the flies expressed the dominant phenotype of one trait and the recessive phenotype of the other trait.
(b) Using the template, construct an appropriately labeled graph, including error bars, to represent the data in Table 1. Based on the data in Table 1, determine whether there is a significant difference between the number of flies in each of the four phenotypes.
Ebony body
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Genetics refers to the area of biology that focuses on genes and patterns of gene inheritance over successive generations. Alleles can be divided into two categories: dominant and recessive.
What are three laws of genetics?George Mendel's laws of genetics, also known as Mendel's principles of inheritance, are three laws that explain how traits are passed down from parents to their offspring.The first law is the law of segregation, which states that during the formation of gametes (sex cells), the two copies of each gene (one from each parent) separate from each other, so that each gamete receives only one copy of each gene.The second law is the law of dominance, which states that when different versions of a gene (alleles) are present, one allele will be dominant and will be expressed, while the other allele will be recessive and will not be expressed.The third law is the law of independent assortment, which states that the inheritance of one gene is independent of the inheritance of another gene. This means that the inheritance of one trait does not affect the inheritance of another trait.To learn more about George Mendel's laws refer:
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What type of research study is best for placing objects into categories?
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In the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, which side of the body would have impairments associated with these sensory modalities?
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In the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, the side of the body that would have impairments associated with these sensory modalities is left.
What is rostral medulla?
The rostral medulla (RM), or ventromedial nucleus of the spinal cord, is a group of neurons located close to the midline on the floor of the medulla oblongata.
The rostral medulla sends descending inhibitory and excitatory fibers to the dorsal horn spinal cord neurons.
Thus, in the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, the side of the body that would have impairments associated with these sensory modalities is left.
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Three boats were moving across the surface of a smooth lake. The gray and pink boats have the same mass, and both of these boats are more massive than the orange boat. Each boat was bumped by another boat, but not from the same direction. Use the information in the diagram to answer.
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Answer: There is no diagram but I had this on a test last week. The answer is the gray and pink boats experienced the strongest force because they are both more massive than the orange boat, and they all changed speed by the same amount.
mrna used in a sentence
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Answer:
The mRNA was positively corresponding with its simultaneous serum levels
Explanation:
Hope this helps!
What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist
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The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.
Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.
Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.
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Which of these happens to astronauts in space without the pull of gravity?
A
Their vertebrae spread out.
B
They cannot eat solid food.
C
They shrink a few inches.
D
Their hair all falls out.
Answers
Answer:A
Explanation: I looked it up
Astronaut's vertebrae spread out in space without the pull of gravity.
What do you mean by pull of gravity?Gravity is a force that attracts all objects towards each other – every object with mass pulls on every other object with mass. When a person jumps off a chair, the person is attracted to the Earth and the Earth is attracted to the person.
The average gravitational pull of the Earth is 9.8 meters per second squared (m/s2). The Earth is made of different substances like air, rock, and water. These substances have a different amount of mass in a certain amount of space (density).
The measure of the pull of gravity on an object is called weight. For an object to have weight it must have mass. Weight can be calculated on Earth by multiplying the mass of an object in kilograms by the acceleration of gravity, which is 9.8 m/s2.
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Which biome is overall least altered by human activity world-wide? A. Tropical seasonal forest. B. Tundra C. Tropical rainforests. D. Deserts.
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The biome that is overall least altered by human activity worldwide is b) Tundra.
What is Biome?
Biomes are major ecological areas that are based on the general temperature and climate of the area, including the physical aspects such as the topography of the landscape, the water and soil present, and the type of vegetation. Biomes range from tropical rainforests to arctic tundra, and each biome has a unique set of environmental factors that contribute to the flora and fauna found within that region.
Why Tundra is least altered by human activity world-wide?
Tundra is the one that has been least altered by human activity worldwide because of the following reasons:
Tundra is an ecosystem that is characterized by extremely low temperatures, low precipitation, and short growing seasons. The soil is typically frozen year-round, which makes it difficult for plants to take root, and the harsh climate limits the number of animals that can survive in this environment. Human activity in tundra biome is limited, due to the above-mentioned factors and these regions are typically isolated from human settlements or infrastructure.As a result, tundra biomes are some of the least impacted by human activity worldwide.
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Which type of organic molecule provides us with quick energy?
Answers
Answer:
Sugar
Explanation:
Sugar goes into your blood and gives you a quick energy boost.
Answer:
Carbohydrates
Explanation:
Carbohydrates provide energy to the body, particularly through glucose, a simple sugar that is a component of starch and an ingredient in many staple foods. Carbohydrates also have other important functions in humans, animals, and plants. Lipids include a diverse group of compounds that are largely nonpolar in nature.
Which level of organization is represented by the skeleton of the snake?
А.organ
B.organism
C.tissue system
D.organ system
Answers
Tissue system, enables the snake to move forward by pushing against the ground while bending and curling its body. Thus, option C is correct.
What level of organization are present in snake?The body of a snake is long and slender, and it is separated into four quadrants. Head, esophagus, heart, and trachea make up the first quadrant's major structures.
The second quadrant contains the liver, stomach, and anterior, vascularized region of the lung(s).
A snake has a basic skeleton because it has no arms or legs. Hundreds of ribs extend from the base of the tail to the end of the long, flexible spine that connects the head to the backbone.
This enables the snake to move forward by pushing against the ground while bending and curling its body.
Therefore, tissue system level of organization is represented by the skeleton of the snake.
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Consider the group of giraffes in the image below.
Which statement about the giraffes explains their evolution based on Charles Darwin’s main points?
The closest fossil ancestor to these giraffes would have a very short neck.
All three of the giraffes have an equal chance of reproducing regardless of the environment.
As a giraffe reached for food, the giraffe could make its neck longer making it better adapted to the environment.
Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks.
Answers
Answer: the process of natural selection. The giraffes with long necks and giraffes with short neck once survived together in an environment but gradually the natural selection eliminated the giraffes with short neck and favored the growth of giraffes with long necks.
The statement that best aligns with Charles Darwin's theory of evolution is the one pertaining to the random genetic change of giraffes developing long necks, which proves advantageous for survival and increases in the population over generations.
Explanation:The statement that says, 'Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks,' explains the evolution of these giraffes based on Charles Darwin's evolutionary theory. This theory posits that species evolve over time through processes like mutation, natural selection, and genetic drift. In this case, a random genetic mutation that caused longer necks would give those giraffes a survival advantage. Being able to reach higher food sources, these giraffes would be more likely to survive, reproduce, and pass on their long-neck genes, leading to a gradual increase in the number of giraffes with long necks.
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Pre-Test
Active
1
2
Which event signals the birth of a star?
A core shrinks and explodes in a supernova.
A protostar collapses, becoming dense and hot.
Extreme heat and pressure causes nuclear fusion.
A mass of gas and dust grows and forms a protostar.
Mark this and return
Answers
Hydrogen and helium atoms fuse together to generate stars. The heat produced by this process releases a lot of energy. Four hydrogen atoms and one helium atom are fused together in this procedure. Thus, the correct option is C.
What is helium?Hydrogen and helium atoms fuse together to generate stars. The heat produced by this process releases a lot of energy. Four hydrogen atoms and one helium atom are fused together in this procedure. The nuclear fusion processes are caused by the external heat, pressure, and gravitational force. The pressure produced by the heat allows the helium atom to fuse with carbon. These fusions are required to give the star its form.
The nuclear fusion processes are caused by the external heat, pressure, and gravitational force. The pressure produced by the heat allows the helium atom to fuse with carbon. These fusions are required to give the star its form.
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Describe the structure and function of the parts of a eukaryotic chromosome. Describe the adaptive significance of organizing genes into chromosomes.
How does the function and structure of the chromosome differ in prokaryotes?
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The structure of a eukaryotic chromosome consists of DNA wrapped around histone proteins to form nucleosomes, which are then further coiled and packed into higher-order structures.
Chromosomes contain important genetic information in the form of genes that are responsible for various functions. Organizing genes into chromosomes helps to ensure proper segregation of genetic material during cell division and increases the efficiency of genetic recombination. In prokaryotes, the chromosome is typically a single, circular molecule of DNA that is not associated with histones, and the genes are arranged in an operon structure that allows for coordinated gene expression.
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PLEASE PLEASE PLEASE HELP GIVING BRAINLY
Changes in ____ result in a change in protein structure which alters the ____-type of the organism and MIGHT increase _____.
Answers
Answer:
DNA, genotype and resistance.
Explanation:
Change in DNA of an organism results in a change in the shape and structure of protein because DNA has the codes of instructions on the basis of which ribosomes synthesis proteins for the cell. This change occurs due to mutation in the DNA sequence that causes change in protein. Due to this mutation, the genotype of an organism changes and might increases its resistance that leads to its survival in that environment so we can say that mutation has good effects on the organisms.