Since forces cause a change in motion or state of a body, friction is a force which opposes motion of an object over another.
What is frictional force?Frictional force or friction is the force that opposes the relative motion of one object over another at their surface of contact.
The two types of friction are:
static friction andkinetic frictionRough surfaces experience the greatest friction while smooty surfaces experience the least friction.
Hence, friction can be reduced by lubrication or polishing.
Based on the property of forces and friction:
Force is defined as a push or pull that starts, stops or changes the direction of a moving object.Friction is a force that opposes motion between two surfaces sticking or touching together.A sandy floor has the greatest frictional force among these surface.Friction is a force that opposes motion. It acts in the opposite direction of a moving object. Friction is a force that occurs when surfaces touch each other. Rolling friction is produced when an object rolls over a surface is produced.Rolling friction is produced when an object is rolled on a surface. Round objects like a Ball produces rolling friction.Riding a bicycle and using of wheelbarrow (kariton) are examples of rolling frictionA soccer ball rolling on the ground is an example of rolling friction.Sliding friction occurs between moving objects and a liquid or between an object moving in the air.Static Friction occurs when there is more force needed to travel an object in a surface than rolling Friction.A train going around its tracks is rolling frictionSliding friction opposes the sliding of objects over a surface.Mucus produced by snails, help them move along the ground because Mucus reduces friction.Therefore, it can be concluded that generally, friction opposes motion of an object over another.
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Which of the following best describes the total amount of carbon in the system made up of the Earth and its atmosphere?
A. It remains constant because oxygen converts to carbon in the geosphere and hydrosphere.
B. It continually increases as carbon is produced during cellular respiration and trapped in the atmosphere.
C. It continually decreases as carbon is used up during photosynthesis and trapped in the biosphere.
D. It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere.
Answer:
A
Explanation:
It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere.
Synovial joints ________. Group of answer choices are joints where the bones articulate with each other within a fluid-filled joint cavity are joints where the bones are connected to each other by hyaline cartilage may be functionally classified as a amphiarthrosis may be functionally classified as a synarthrosis
Answer:
are the most common type of joint in the body (see image 1). These joints are termed diarthroses, meaning they are freely mobile. A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity.
Expected frequency of CC genotype
Answer:
0.18
Explanation:
Which resource do you think is most important to
your survival: water, air, a place to live, or food?
Answer:
air
Explanation: without air you can cant even live
Muscle control and body coordination are controlled by the:.
Answer:
The Cerebellum's Balancing Act
Explanation:
The cerebellum is at the back of the brain, below the cerebrum. It's a lot smaller than the cerebrum. But it's a very important part of the brain. It controls balance, movement, and coordination (how your muscles work together).
Muscle control and body coordination are controlled by the cerebellum.
The cerebellum is a highly specialized region of the brain located at the back of the skull, beneath the cerebrum. It is usually referred to as the "little brain" due to its appearance and position. Although it constitutes only about 10% of the brain's total volume, the cerebellum contains an enormous number of neurons.
It plays a crucial role in motor control, coordination, and balance. It receives information from various sensory systems. It also receives input from the cerebral cortex, which is involved in planning and initiating movements.
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Which of these does NOT greatly affect climate?
Note: Answer using the exact words from one of the answers so it is less confusing
Earth's Tilt
Angle of Sunlight
Seasonal Changes
Location on Earth
Answer:
angle of sunlight
Explanation:
im pretty sure its this bc all the other answers greatly affect climate
In an area of East Texas, the most intense competition would most likely occur between white-tailed deer and
A. brown bears
B. squirrels
C. other white-tailed deer
D. coyotes
Given what we know, we can confirm that the most intense competition would most likely occur between white-tailed deer and other white-tailed deer.
Why would white-tailed deer most likely compete with themselves?This has to do with food sources. Of the many animals listed, none of them share a food source with the white-tailed deer. The deer are herbivores that feed primarily on grass and shrubs. The bears and coyotes are carnivores that feed on other animals such as the deer themselves. While squirrels are herbivores but do not compete with the deer for food.
Therefore, given that other deer are the only animals listed that are after the same food source, we can confirm that the most intense competition would most likely occur between white-tailed deer and other white-tailed deer.
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Answer:
c
Explanation:
just took it
Healthy ecosystems depend on-
Answer:
Native plant and animal populating.
Please sir said thank you and give braniliest!??
Answer:
native plants and Animals
Use the drop-down menus to answer the questions about binary fission. binary fission is a form of reproduction. binary fission results in cells that are .
Binary fission is a form of agamous reproduction. The cells produce by binary fission are two, and the cells that are produced are identical.
What is binary fission?Binary fission is the division of the body into two identical bodies.
Binary fission is an agamous reproduction, in which the animals divide the cells into two cells and the second cell is called the daughter cell.
The single-celled animal reproduces by binary fission. Examples are hydra, bacteria, etc.
Thus, the correct options are 1. agamous reproduction, 2. Two, and 3. Identical cells.
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Just did the assignment
Explanation:
Which of the following is an example of a nonspecific immune response?
Carbohydrates are less-efficient fuel sources than fats because the carbon in carbohydrates is more:
Answer:Because complex carbohydrates are larger molecules than simple carbohydrates
Explanation:
Because complex carbohydrates are larger molecules than simple carbohydrates, they must be broken down into simple carbohydrates before they can be absorbed. Thus, they tend to provide energy to the body more slowly than simple carbohydrates but still more quickly than protein or fat.
What is the problem in this article? What solution does the article propose?(Site 1)
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
What does the article talk about?The article talks about how the issue of sea turtle bycatch is affecting sea turtle conservation efforts because sea turtles get caught in nets that were laid for shrimp and other fish.
The solution being proferred is a TED which when added to a net, provides a flap-like opening such as metal bars that allow for sea turtles to escape the net.
Find out more on sea turtle conservation at https://brainly.com/question/26576608.
Answer:
Explanation:
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
6) the first plants and animals to inhabit a newly available ecosystem are the
o
lichens
o pioneer species
o bacteria
ο ο ο ο
olegumes
climax community
Which of these describe an inheritance pattern of autosomal genetic disorders? Select all that apply
For an autosomal dominant disorder to be expressed, two copies of the abnormal allele must be inherited.
For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inherited.
For an autosomal recessive disorder to be expressed, just one copy of the abnormal allele must be inherited.
For an autosomal dominant disorder to be expressed just one ceny nf the abnormal allele must
The following describe the inheritance pattern of autosomal genetic disorders.
For an autosomal dominant disorder to be expressed just one copy of the abnormal allele must be inherited.For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inherited.What is autosomal genetic disorder?Autosomal disorders is a form.of genetic disorders which is as a result of mutations in genes on the autosomes or chromosomes. Each person have two copies of autosomal gene, one of the alleles are inherited from each parent. Autosomal dominant disorders occur when there is a mutation in one copy of the gene.
Therefore, The following describe the inheritance pattern of autosomal genetic disorders.
For an autosomal dominant disorder to be expressed just one copy of the abnormal allele must be inherited.For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inheritedLearn more about autosomal genetic disorder below.
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The presence of calcium in the sarcoplasm is directly responsible for __________. Multiple choice 1 decreasing the length of the myosin myofilament energizing the myosin heads degrading the actin binding sites on the myosin the movement of actin towards the M line exposing the binding sites on actin 2. Rigor mortis occurs after death because __________. Multiple choice 2 actin binding sites become permanently blocked so that crossbridge formation cannot occur no calcium is present to bind to the regulatory protein tropomyosin detachment of crossbridges does not occur due to the lack of ATP the power stroke becomes stronger after death the muscle fibers release sodium into the extracellular fluid
This is defined as the the cytoplasm of striated muscle cells in living organisms .When calcium is present, the binding sites on actin are exposed.
Rigor mortis occurs after death and involves stiffening of the muscle tissue because detachment of cross bridges does not occur due to the lack of ATP.
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Choose one specific natural resource in your region. Describe what it is used for, how it is harvested, what attempts have been made to manage it in a sustainable way, and how social, economic, and environmental needs may come into conflict. Evaluate how effective the attempts of natural resource management have been.
Answer:
Rainwater is very important in my area, we use it for crops, animals and for everyday essentials. It's collected in jars and kept stored, it can be filter then boiled to extract any bacteria. Then I usually sit it outside in the sun to grab the suns energy. This saves me a lot of money on utilities like my water bill for example. It's safe for everyone and poses no threat to the environment.
Explanation:
This is a natural alternative for anyone who loves nature and alkaline water
Answer:
Blue crab is an important resource in my region. It is harvested in Chesapeake Bay. People in my region have been eating blue crabs for hundreds of years. Blue crabs are usually harvested in traps called crab pots. Most crabs are harvested commercially, but recreational crabbing is also important. Crab harvesting in Chesapeake Bay is regulated by the states of Maryland and Virginia, and special licenses are required. Limits are placed on the number of crab pots and the sizes of crabs that can be kept. Even though regulations are in place to protect the crabs, their numbers are declining due to deteriorating water quality in Chesapeake Bay. The crabs require additional protection, but too many restrictions could put people out of work because blue crabs are a popular, traditional food in the region, and thousands of people make a living from crab fishing. The natural resources management of the crabs is inadequate because the crabs continue to be harvested in an unsustainable way.
Explanation:
EDMENTUM ANSWER
Two unlinked loci affect mouse fur color. nn or nn mice are agouti. mice with genotype nn are albino because all pigment production is blocked, regardless of the phenotype at the second locus. at the second locus, the a allele (agouti coat) is dominant to the a allele (black coat). what would be the result of a cross between two agouti mice of genotype nnaa?
The result of a cross between two agouti mice of genotype nnaa are albino offspring because mice with genotype nn are albino (pigment production is blocked by epistasis).
What is epistasis?Epistasis is a genetic phenomenon where the presence of a gene variant alters a phenotype influenced by other genes.
A gene is epistatic when a variant (allele) can alter the expression of another gene in the same signaling pathway.
Epistatic interactions are very common in nature and many traits are influenced by this type of interaction.
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What are the characteristics of nonavianreptiles that set them apart?
Answer:
Nonavian reptiles have dry skin with keratinized scales, a single condyle, internal fertilization, an amniotic egg, metanephric kidneys, and lungs.
Explanation:
The amount of food that can be produced in an given area is called
Food production is the quantity of food produced, processed, prepared in an area.
What is Food production area?Food production area refer to a geographical location where food products or their ingredients for human consumption are prepared, processed, repacked, handled or manufactured.
The food produced are localised in that area and can be exported to other place.
The food production area is normally known for a specific food manufactured in that area.
Therefore, Food production is the quantity of food produced in an area
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A plant specimen has seeds that are enclosed by a fruit. which type of plant is it?
Angiosperms are plant specimen that has seeds that are enclosed by a fruit.
What are angiosperms?Angiosperms are well-defined plants with stems, roots, and leaves.They are vascular plants ( they have xylem and phloem tissues to transport water minerals throughout the body).Their seeds are enclosed in fruit and include flowering plants.Hence, "Angiosperms" is the correct answer.
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there are three categories of chemical reactions based on changes in chemical structure. The first category is
What the weakness of DNA Extraction??
Please help me
Thank you
Answer:
the weakness potential is for invasion of individual privacy.
Explanation:
Because a person's DNA reveals so much information about their physical state, it is sensitive information that must be carefully guarded.
Which of the following would be considered a biotic factor in an ecosystem?
water
flower
fog
soil
Answer:
flower
Explanation:
biotic is a living organism including plants of any type fog spil and water are not living
What are 'prokaryotic organisms'? What are some examples?
Explanation:
Prokaryotic organisms are type of cells that are clearly different from eukaryotic cells (human or plant cells), since they lack nucleus and other type of organelles and differ with size. ( some of them have flagella which helps these cells to move)
Example: Any type of bacteria can be considered as a Prokaryotic cell
Prokaryotic organisms are organisms that lack a true nucleus or in other words that have a primitive nucleus. This includes bacteria, E-coli, etc.
What is the difference between prokaryotes and eukaryotes?Eukaryotes are the organisms that have a well developed nucleus. They also have membrane bound cell organelles. These are generally multicellular.
Prokaryotes have a primitive nucleus, and the organelles are also not membrane-bound. These are unicellular.
Prokaryotes are divided into bacteria and archaebacteria. Most of them are small, single-celled and relatively simple. Example cyanobacteria, bacteria, E-coli, etc.
Thus, the organisms like bacteria, which lack a true nucleus are called prokaryotes.
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How long does it take for an avocado seed to sprout?.
Answer:
It takes about 2 to 6 weeks
Explanation:
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how ribosomes help cell maintain homeostasis
Answer:
Ribosomes create the thermoreceptors of the body. Another example of a homeostatic condition maintained by proteins is blood-glucose levels. When our blood-sugar levels get too high, specialized cells in the body release a protein hormone called insulin.
Explanation:
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Answer: Ribosomes play a key role in homeostasis. Without ribosomes, a cell would not make proteins. A cell with no ribosome would simply not function. With no protein reproduction to maintain the cell wall there would be no barrier to keep invasive bodies from damaging the inner workings of the cell, there would be no way to produce the needed proteins for rebuilding and maintaining the cell.
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What type of epithelial tissue is found in the proximal and distal convoluted tubules
Answer:
simple cuboidal epithelium
Explanation:
The type of epithelial tissue found in the proximal and distal convoluted tubules is the simple cuboidal epithelium.
What do you mean by Epithelial tissues?The epithelial tissues may be defined as a kind of body tissue that constitutes the surface on all internal and external surfaces of your body, lines body cavities and hollow organs, and is the major tissue in glands.
Proximal convoluted tubules (PCT) are formed by the simple cuboidal tissues in a brush-like border of microvilli to enhance the area of absorption of water and nutrients.
Distal convoluted tubules (DCT) are simply formed by simple cuboidal epithelium. It is found in the cortex and corticomedullary junction.
Therefore, the type of epithelial tissue found in the proximal and distal convoluted tubules is the simple cuboidal epithelium.
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What would happen if there were no predators in the forest? Would the colors of the moths change over time?
Which of the following explains Mendel's principle of segregation?
A. During meiosis, gametes are produced with only one copy of each gene.
B. Heterozygous organisms always breed true for a given trait.
C. Genes that are close to each other on a chromosome are often inherited together.
D. An organism must receive only one copy of a recessive gene to show the recessive trait.
Answer:
C. Genes that are close to each other on a chromosome are often inherited together.
how are utah and mexican praire dogs genes alike
Answer:
In terms of genetic variation, allelic richness (A) estimated through rarefaction resulted in 1.6–3.0 mean alleles per colony, and no private alleles were found. Mean genetic diversity (HE) was 0.525 (SD = 0.11), with values ranging from 0.276 (SD = 0.25) to 0.618 (SD = 0.09).
Explanation:
Utah prairie dog (Cynomys parvidens), and Mexican prairie dog (Cynomys mexicanus)—all of which may be considered rare (Hoogland 2006a). After 200 years of shootings, poisonings, conversion of habitat, and more recently plague, prairie dog numbers are a fraction of what they once were. Two of the species (Utah and Mexican) are listed as threatened or endangered under the Endangered Species Act (ESA).