Answer:
b
Explanation:
reason why is because blowing through a straw demonstrates air so when you blow it against sand or dirt it blows pieces of soil or sand away and in different areas.
Blow into a drinking straw over the sand which demonstrate wind erosion using this model. So, the correct option is (B).
What is Wind erosion?Wind erosion is defined as the natural process that moves soil from one place to another by wind energy which can cause significant economic and environmental damage.
It is a major cause of land degradation in arid and semi-arid grasslands, which is one of the processes leading to desertification. Significant wind erosion occurs when strong winds blow on light textured soils that have been heavily grazed during periods of drought.
It can happen anytime and anywhere when the wind blows which can happen in any area where sand or soil is not compacted or is of fine grained nature. Wind erosion not only destroys the land by drying out the soil and depleting the land's nutrients but also results in air pollution.
Thus, blowing into a drinking straw over the sand which demonstrate wind erosion using this model. So, the correct option is (B).
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Due today! Plss Help!
(1)What are the components of the cell theory?
1.
2.
3.
(2)What did Van Leeuwenhoek observe, and how did it impact the development of the cell theory?
(3)What did Hooke create, and what impacts did he make on the development of the cell theory?
(4)Briefly describe the importance that Brown had on the development of the cell theory.
(5)What discoveries did Schleiden publish and what impact did he have on the development of the cell theory?
(6)What impact did Schwann have on the development of the cell theory?
(7)What did Von Roelliker discover?
(8)What did Virchow add to the development of the cell theory?
(9)Describe Pasteur’s experiments and the observations he made.
(10)What do all living things have?
Answer:
1.
1) All living organisms are composed of one or more cells.
2)The cell is the basic unit of structure and organisation in organisms.
3) Cells arise from pre-existing cells.
2. The first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
3. law of elasticity (Hooke's law), for his first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork), and for his studies of microscopic fossils, which made him an early proponent of a theory
4. His discovery of the nucleus and its role helped to put together the cell theory, which states that all living organisms are composed of cells, and cells come from pre-existing cells.
5. He published his findings and called the process he saw “binary fission”. He concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter.
6. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.
7. that the sperm and egg were composed of cells and that humans are formed of cells from beginning to end.
8. In 1855, he further developed his ideas by publishing his famous aphorism omnis cellula e cellula which became a part of the foundation for cell theory. Virchow's theory stated that just as animals are unable to arise without previously existing animals, cells are unable to arise without previously existing cells.
9. Pasteur's experiment showed that microbes cannot arise from nonliving materials under the conditions that existed on Earth during his lifetime. The experiment had to do with Pasteur adding nutrient broth to flasks, bent the necks of the flasks into S shapes, and then boiled the broth to kill any existing microbes.
10. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Explanation:
Hope thise helped.
Gene therapy has been used to treat and cure cystic fibrosis. Cystic fibrosis is caused by a _________ in a single gene?
Answer:
mutation
Explanation:
trust me, i took the test
Gene therapy has been used to treat and cure cystic fibrosis. Cystic fibrosis is caused by a mutation in a single gene.
What are mutations?A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
Moreover, hereditary mutations include cystic fibrosis, hemophilia, and sickle cell disease. Other mutations can happen on their own during a person's life. These are called sporadic, spontaneous, or new mutations. They affect only some cells.
Therefore, mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
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TIME REMAINING 01:39:44 Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own food. Under which color of light will plants be least likely to make food? red blue orange green
Answer: green
Explanation:
Answer:
The answer is B
Explanation:
Because blue light has lower energ and the questions bolds “least likely to cook food” this answer is for edgen 2021 quiz
During an experiment, a student moves a cell from pure water to salted water. What will most likely happen to the cell?
It will release water and shrivel.
It will release water and burst.
It will take in water and shrivel.
It will take in water and burst.
Answer:
b
Explanation:
Using antennae the male moth finds female moths by following a trail of airborne chemicals called pheromones upwind to the female producing them. This is an example of how living things A acquire nutrients B maintain homeostasis C respond to stimulus E. Grow
Answer:
C respond to stimulus ......
Using antennae the male moth finds female moths by following a trail of airborne chemicals called pheromones upwind to the female producing them.
This is an example of how living things how respond to stimulus. Thus option C is correct.
What is pheromone ?pheromone refers to the chemical agents produced by organisms which gives stimulation to other members of the same species.
It is a type of ectohormone secreted outside the body trigger stimulation to other individuals.
Organisms possess chemoreceptor which is other wise called as pheromone receptors detect the presence of the pheromones of other members of the same species.
It can stimulate a number of behavioral responses includes promote their aggregation, give signals for the presence of a predator etc.
It help in Creation of food trails, alert other species about danger, mark territory, identification between mother and offspring.
One of the best studied species is wild Silk moths where the Female moths produce bombykol type of chemical which can be detected by pheromone receptors male moths.
Thus option C is correct.
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Which of the following statements describes surfactant?
Answer:
what are the options???
Explanation:
The statement that describes a surfactant is that it is slippery. The correct option is B.
What is a surfactant?Surfactants are a key ingredient in washing detergents. The term surfactant refers to a surface active agent.
Surfactants, as the title suggests, stimulate operation on the surface being cleaned in order to trap and remove dirt and somewhat slippery.
Thus, the correct option is B.
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The missing options of the question are:
A- StickyB- SlipperyC- WetD- BubblyWhat do you think happens to the particles of air inside the ball as it warms in the sun?
There is matter inside the balloon. The mixture of gas present in the balloon is a form of matter which has some kinetic energy which will increase with the increase in temperature.
What is Kinetic energy?Kinetic energy is the energy present inside a body which is in motion. Here, the molecules of gas present inside the balloon possess kinetic energy. The kinetic energy of all the gases is almost similar at a specific temperature regardless of their constituents.
The kinetic energy of gas present inside the balloon increases with the increase in the temperature. When the balloon is kept in the sun, due to the heat of Sun, kinetic energy of gas particles inside the balloon also increases and the balloon expands. This will lead to an increase in the pressure on the walls of the balloon.
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Which statement describes one event that happens at deep-ocean trenches? Crust is formed. Mountains are formed. Seafloor spreading occurs. Denser plates slide under lighter plates.
Answer:
D
Explanation:
I took the test...Good luck!
Answer: d. Denser plates slide under lighter plates
Genes _____.
are carried on chromosomes
are made of DNA
can cause genetic disorders
determine physical and chemical traits
are made of chromosomes
Answer:
Genes are carried on chromosomes
Genes are made of DNA
Genes can cause genetic disorder
Explanation:
Find €12 as a percentage of €60.
Find 15 km as a percentage of 120
Answer:
7 percent of 60 and 18 of 120
Explanation:
Answer:
20 percent , 12.5
Explanation:
Colorblindness results from
Answer:
It is a genetic condition caused by a difference in how one or more of the light-sensitive cells found in the retina of the eye respond to certain colors. These cells, called cones, sense wavelengths of light, and enable the retina to distinguish between colors.
Explanation:
Answer: Mutations in the OPN1LW, OPN1MW, and OPN1SW genes. The proteins produced from these genes play essential roles in color vision. They are found in the retina, which is the light-sensitive tissue at the back of the eye.
Molecurlar motion is a measure of the movement of the molecules in a substance for example the molecules in _______ move more than the molecules
Why do plants supplies bacteria with amino acids ?
Answer: All living cells need nitrogen to make nucleic acids, proteins, and other cellular constituents. Plants absorb nitrogen and put them into amino acids and proteins. Other organisms consume the plants. As part of the major nutrients in the diet, amino acids should be particularly taken into account since they not only support the growth and survival of bacteria in the GI tract [27], but also regulate energy and protein homeostasis in organisms [28,29].
Hope this helps... stay safe and have a great weekend!!! plz mark me brainliest if i am right!!!! :D
What are the important parts of the nervous system
Answer:
Central Nervous System
Spinal Cord
Peripheral Nervous System
Explanation:
The Nervous System has two MAIN parts. The Central Nervous System is made up of the brain and spinal cord.
The Peripheral Nervous System is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Hopefully, this answers's your question.
Carbohydrates are found in many foods. What is the end result of the body's use of a
carbohydrate?
А
A carbohydrate is used as it is to build up the body.
B
A carbohydrate is broken into glucose, which makes the body move.
C Carbohydrates are combined to make a large carbohydrate.
D
A carbohydrate is broken into glucose, which is broken into smaller molecules to
release energy
Answer:
D . A carbohydrate is broken into glucose, which is broken into smaller molecules to
release energy
Explanation:
Carbohydrates found in many foods provides energy for the body. It is made up of carbon, hydrogen and oxygen.
Carbohydrates is found in many food substances like cereals. When carbohydrates giant molecules are taken into the body. Metabolic processes reduces them to glucose which is digestible. When glucose is broken down energy is released for work and it is stored in form of ATP in the body.Proteins are used to build the body
Answer:
The answer is D
Explanation:
Please answer ;-;
Which two factors are needed to calculate the velocity of an object?
A. Speed
B. Mass
C. Direction
D. Acceleration
Answer:
Required Answer:-To find velocity of a object we need 3 factorsMagnitude speedDistanceHence Here both option A and C are correctAnswer: A and C
Explanation:
got them right on my test
The functions of what cell structure are described in this list? A.) the plasma membrane B.) a lysosome C.) a mitochondrion D.) the endoplasmic reticulum
Answer:
plasma membrane
PLEASE HELP! im struggling lol
How does solar radiation affect climate?
How do the ocean currents affect climate?
How does climate change affect the ocean?
How does climate change affect the biodiversity of marine ecosystems?
What you think
Source 1
Source 2
Source 3
Summary
Answer:
Explanation:
question 1
the resulting imbalance between incoming solar radiation also outgoing thermal radiation most likely causes the earth to heat up over the next 10 years.
question 2
much like a conveyor belt, transporting warm water and precipitation from the equator making the cold water from the poled back to tropics
question 3
greenhouse gasses trap more and more energy from the sun, oceans are absorbing the heat at a slower rate.
question 4
climate change due to human activity had a direct impact on marine species
1. Solar radiation drives climate by influencing temperature and weather patterns.
2. Ocean currents distribute heat, affecting regional climate and weather conditions.
3. Climate change causes sea-level rise, ocean acidification, altered currents, and disrupted coastlines.
4. Climate change harms marine biodiversity through temperature shifts, acidification, and habitat disruption.
1. Solar radiation plays a crucial role in driving Earth's climate system. It determines the amount of energy that reaches the Earth's surface, influencing temperature patterns, atmospheric circulation, and the formation of weather systems. Changes in solar radiation can directly impact climate, leading to variations in temperature and weather patterns.
2. Ocean currents have a significant influence on climate. They distribute heat from the tropics to higher latitudes, affecting regional temperature patterns. For example, the Gulf Stream carries warm water from the tropics to the North Atlantic, moderating temperatures in Western Europe. Changes in ocean currents can lead to shifts in climate patterns and weather conditions.
3. Climate change has profound effects on the ocean. Rising temperatures cause thermal expansion, contributing to sea-level rise. Increased carbon dioxide emissions also lead to ocean acidification, which negatively impacts marine ecosystems and organisms like coral reefs and shellfish. Climate change can disrupt ocean circulation and alter precipitation patterns, affecting ocean currents and coastal areas.
4. Climate change poses significant threats to marine biodiversity. Rising sea temperatures and ocean acidification harm marine species, particularly those reliant on specific temperature and pH conditions. Coral bleaching events, driven by climate change, can devastate coral reef ecosystems. Changes in climate can also disrupt food chains and habitats, leading to biodiversity loss in marine ecosystems.
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The appropriate question is:
1. How does solar radiation affect climate?
2. How do the ocean currents affect climate?
3. How does climate change affect the ocean?
4. How does climate change affect the biodiversity of marine ecosystems?
What is the end result of meiosis? four identical daughter cells four different daughter cells two identical daughter cells two different daughter cells
Answer:
B. Four Different Daughter Cells
Explanation:
The end result of meiosis results in the production of four genetically different daughter cells.
The result of meiosis is four different daughter cells.
• A kind of cell division, which minimizes the number of chromosomes in the parent cell by half and generates four gamete cells is known as meiosis.
• This process is needed to generate sperm and egg cells for sexual reproduction.
• Meiosis starts with a parent cell, which is diploid, that is, it has two copies of each chromosome.
• The parent cell goes through one round of replication of DNA succeeded by two distinct cycles of nuclear division.
• In the end, four haploid daughter cells are produced, that is, they contain half the number of chromosomes present in the parent cell.
Thus, four different daughter cells are produced at the end of meiosis.
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The appearance of cuticle and stomata correlated with what event in the evolution of land plants?
Answer: Getting rid of the excessive water through the evaporation.
Organisms may contain up to five levels of organization within their bodies. Which level of organization is best represented by the liver?
tissue
organ
organism
organ system
Answer: The liver best represents an organ.
Explanation:
Liver is the largest organ in the human body. It does multiple functions in the physiological system. The correct option is organ.
What are the levels of organization?1. Cell - Cell is the fundamental unit of life. It is the smallest level of organization.
2. Tissue - tissue is a group of cells that are structurally and functionally similar, for eg. muscle tissue, connective tissue.
3. Organ - an organ is a group of tissues that function in a combined manner, for eg. liver, stomach.
4. Organ system - an organ system is a group of organs that function for a specific physiological purpose, for eg. nervous system, digestive system.
5. Organism - an organism is a whole individual which is made up of the various tissues and organ systems, for eg. human being, animals, plants.
A diagram is attached that illustrates these above mentioned levels of organization
Liver is made up of different types of tissues such as the hepatic laminae, bile canaliculi, hepatic sinusoids, hepatic and portal lobule and the hepatic acinus.
Thus, the correct option is organ.
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Why do crystals of different minerals form different shapes?
Answer:
Mineral crystals form in many different shapes and sizes. A mineral is made up of atoms and molecules. As the atoms and molecules combine, they form a particular pattern. ... The final shape of the mineral reflects the original atomic shape.
Explanation:
Answer:
The thickness
Explanation:
The minerals could be thinner or thicker depending on where they come from. :) hope this helped. Have a good day!
PLS HELPS ME!1111111!!!!!!
Gyres are NOT affected by
A. upwelling.
B. landmasses.
C. the Coriolis effect.
D. surface current movements.
Answer: The answer is C hope it’s helps
Explanation:In oceanography, a gyre is any large system of circulating ocean currents, particularly those involved with large wind movements. Gyres are caused by the Coriolis effect; planetary vorticity, horizontal friction and vertical friction determine the circulatory patterns from the wind stress cur
A ___________changes the direction of light.
pls tell
Answer:
try refraction
Explanation:
Answer:
a mirror changes the directions of light
Plz someone help me get these right ill give 50 points and brainlist if there ALL right!!
The diagram below represents some events that take place in plant cells.(IMAGE 2)
In which organelle would the above events most likely occur?
ribosome
mitochondrion
chloroplast
cytoplasm
Cellular respiration occurs in a series of steps. If pyruvate enters the mitochondrion, how much total energy can we assume will be produced?
2 molecules of ATP
14 molecules of oxygen
8 molecules of pyruvic acid
38 molecules of ATP
The graph below represents the absorption spectrum of chlorophyll.(IMAGE3)
The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum?
green and yellow
orange-red and violet-blue
yellow and orange-red
violet-blue and green
How do the number of chromosomes in an organism's egg cells compare with the number of chromosomes in her body (somatic) cells?
There are twice as many chromosomes in egg cells.
The number of chromosomes is the same in both.
The number of chromosomes depends on the size of the scorpion.
There are half as many chromosomes in egg cells.
PLS, Someone help me I need these right!!!Also the images are in order!!!
Answer:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Explanation:
Viruses are considered to be nonliving because
Answer:
because it's not included as a living thing until it has entered and organism that is living
Explanation:
Answer:
Viruses are not living things.
Explanation:
Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
How do birds and dogs both use DNA as instructions for building their bodies
even though they are very different organisms?
O A. Their DNA has the same nucleotide bases, but in different
patterns.
B. Their DNA has different types of nucleotide bases.
C. Their DNA has different lengths.
D. Their DNA is made of different types of molecules.
Answer:
DNA is language of life, which uses only four letters (=nitrogenous bases). In this language only three-letter words are allowed (=codons)
Which cells come from bone marrow?
Answer:
Bone marrow is the spongy tissue inside bones that produces blood cells. Bone marrow produces red blood cells, platelets, and white blood cells. Lymphocytes are produced in the marrow, and play an important part in the body's immune system.
Explanation:
:D I hope this helps, and please give meh brainiest.
Which outcome is a benefit of physical activity?
management of weight
increased risk of stress
increased risk of heart attack
poor self-esteem, affecting mental health
Answer:
management of weight
Explanation:
Answer: A management of weight
Explanation:
Ansel was a precocious child who loved nature.
Which word listed below would best replace the underlined word in the sentence above?
a gifted
c. ugly
b. mean
d. happy
Answer:
The word "precocious" means gifted.
Answer:
(A) gifted is the correct answer
Explanation:
The other person answered first give them brainliest
hope it helps :b