All of these types of cells have a high surface area-to-volume ratio.
What is the function of RBCs?
Erythrocytes also referred to as red blood cells carry oxygen to your body's tissues. As oxygen is converted to energy, carbon dioxide is released by your tissues. Additionally, your red blood cells carry carbon dioxide to your lungs so you may exhale it.
The process of getting oxygen from your lungs to your body's tissues is carried out by red blood cells. Your tissues use oxygen to make energy and carbon dioxide to expel waste. The carbon dioxide waste is transported to your lungs by your red blood cells, where it is exhaled.
It takes roughly seven days for red blood cells to properly mature and are then released into the bloodstream from the soft bone tissue (bone marrow) of your body. A protein that enables red blood cells to transport oxygen from your lungs and transfer it to other tissues in your body gives them their vivid red color is called hemoglobin.
Therefore, all of these cells have a high surface area-to-volume ratio.
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You've been tasked to study the movements of condensed chromosomes during cell division.
You have access to a magnifying glass, a standard light microscope, a scanning electron
microscope and a transmission electron microscope. Which piece of equipment would you choose
and why? Also why would you NOT choose the others? (max 50 words)
In order to see something as small as a chromosome, It is necessary to employ the use of a scanning electron microscope.
The question states that we wish to study the movements of condensed chromosomes during cellular division. This means that we will need a scope capable of not only looking inside of a cell but even inside of the nucleus of a cell, an extremely minute space.
Logically, a magnifying glass will not be able to accomplish this given that it only allows us to see macroscopic elements, many hundreds of times bigger than what we wish to observe. We run into similar limitations with standard light and transmission microscopes. Although these allow us to see things on a microscopic level, they fall short of the desired capability.
Though the transmission microscope can see even smaller elements than a standard light microscope, both are limited to the surface of cells. The SEM or scanning electron microscope, on the other hand, allows the user to see elements down to 0.1 nanometers in size. Given that chromosomes are between 10 and 30 nanometers in size, we can use this microscope for the desired study.
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What happened to the color of peppered moths after govermental regulations were put in place to decrease air pollution?
A. moths that were lighter in color became more fit over time
B. moths became lighter during their lifetime and passed on the alleles for lighter color to their offspring
C. moths became darker during their lifetime and passed on the alleles for darker color to their offspring
D. moths that were darker in color became more fit over time
Answer:
A
Explanation:
While B seems to be correct, it is A because evoulution requires time and a moth would not have undergone such dramatic phenotypic change in its lifetime.
Which of the following BEST describes the hydrosphere?
WILL GIVE BRAINLIEST
A. bodies of water on the surface of Earth, but not the water in the atmosphere or underground
B. salt water in the oceans, but not fresh water
C. water that is underground or mixed into the geosphere
D. water in any location on Earth, including the atmosphere, surface, and underground
Answer:
A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. ... The frozen part of Earth's hydrosphere is made of ice: glaciers, ice caps and icebergs. The frozen part of the hydrosphere has its own name, the cryosphere.
How many chromosomes would there be in each cell after meiosis I?
Answer:
it would be 23 chromosomes
Explanation:
my teacher just told me yesterday
what would a low number of oxygen bubbles indicate about photosynthesis
A low number of oxygen bubbles indicates the rate of photosynthesis.
What is Photosynthesis?This is the process in which green plants manufacture their food. Carbon dioxide is used up and oxygen is given off during this process.
The bubbles means oxygen is present which translates to a low number of bubbles depicting a decrease in photosynthetic activity and vice versa.
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According to kepler's second law of motion, which statement describes the area swept out by a line between a planet and the sun ??
A. It is constant for equal times
B. It increases as the planet moves away from the sun
C. It is constant if the planet moves at a constant speed
D. It increases as the planet approachas the sun
It is constant over equal periods of time, in accordance with Kepler's second law of motion. The right response is a.
It is constant if the planet moves at a constant speed. Option C
Describe Kepler's law.?The orbits of planets around the Sun are described by Johannes Kepler's laws of planetary motion, which were published between 1609 and 1619.
Kepler's second rule of planetary motion gives an explanation for the speed of a planet in an elliptical orbit around the Sun.
It asserts that similar areas are moved in equal lengths of time along a line drawn between the Sun and the planet.
As a consequence, the planet moves faster as it gets closer to the Sun and slower as it moves further away.
The transition from geocentrism to heliocentrism was ushered in by Kepler's laws of planetary motion.
Together with Earth, they provide the first quantifiable connection between the planets. Additionally, they depict a period when the key issues of the day were evolving.
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A gene showing codominance
which organelle do you think is the most important ? make a scientific argument by explaining what makes the organelle you chose more important than all the other organelles
Answer:
The nucleus
Explanation:
This organelle gives all the info. Without it, the cell will die. It's like a human is alive without a brain.
Why does the process of
diffusion not require any
energy?
A. Solutions must reach equilibrium so the
cells start to move rapidly.
ast.
ney
B. The particles move randomly.
them
C. The nucleus controls the diffusion.
ut
Answer:
A. Solutions must reach equilibrium so the
cells start to move rapidly. i guess it is
in developed countries which of the following is a positive effect of agricultural changes in the past century?
A. Desertification
B. Clearing rainforests
C. Contamination due to run off
D. Amount of food produced has increased
E. Nutrient rich soil for farmland increasing
In developed countries , amount of food produced being increased is a positive effect of agricultural changes in the past century.
Agricultural changes in developed countries were set up such as application of fertilizers etc so as to achieve a maximum yield as the increasing population all over the world means increase in food production to cater for individuals and to prevent starvation and death.
Agricultural changes were also done to ensure goods produced have a very high quality.
The remaining options such as Desertification, Clearing of rainforests and contamination can be referred to as part of the negative effect of agricultural changes in the past century.
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Can water go across a semipermeable cell membrane?
Answer:
I believe water can go across the membrane. I hope this helps.
Answer:
yes, water can go across a semipermiable cell membrane..
Explanation:
brainliest plz
what are 3 facts about the documentary the big little farm
Answer:
Explanation:
The film premiered on September 1, 2018 at the Telluride Film Festival.[7] It had its second screening at the 2018 Toronto International Film Festival, where it was named second runner-up for the People's Choice Award: Documentaries.[8] It was selected as the Opening Night film at Doc NYC in November 2018.[9] The film was screened as part of the Spotlight Section at the 2019 Sundance Film Festival. It also screened at the 29th New Orleans Film Festival on October 24, 2018.[10]
The film was acquired for theatrical distribution by the independent film company Neon,[6] and was released on May 10, 2019 in Los Angeles and New York. The film expanded into Austin, Boston, Chicago, Dallas, Denver, Houston, Minneapolis, Nashville, Philadelphia, Phoenix, Portland, San Diego, San Francisco and Washington D.C on May 17 and additional markets throughout May and June. The film has been acquired by The Exchange for international distribution.[11]
Why is antibiotic resistance dangerous?
Answer:
Antibiotic resistance is one of the most urgent threats to the public’s health. Antibiotic resistant bacteria can cause illnesses that were once easily treatable with antibiotics to become untreatable, leading to dangerous infections. Antibiotic-resistant bacteria are often more difficult to kill and more expensive to treat.
Explanation:
Which term names a property or mineral
Answer: Streak
Explanation: For k12 Science Unit 2 test
If molecules are small enough then
sorry what this means¯\_(ツ)_/¯
13. Processes and ships proteins
out of the cell.
Answer:
Golgi Apparatus
Explanation:
What's the definition of epista
sis
Epistasis is genetic phenomenon that is defined by an interection of genetic variation loci
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
The interplay of genes that determines phenotype is known as epistasis. Genes may either hide each other, making one "dominant," or they can mix to create a new characteristic. It's the conditional link between two genes that can determine a single phenotype for certain features.
Epistasis is a term used in genetics to describe the interaction of genes at two or more loci, as a consequence of which the gene's impact is influenced by the presence of one or more modifier genes. One gene or allele in the interaction is obscuring the phenotypic expression of the other genes or alleles. Epistatic refers to the gene or allele that masks the impact. The other gene(s) or allele(s) being masked, on the other hand, is/are referred to as hypostatic. Epistasis can be dominant or recessive. The fur colour of Labrador retrievers, which is a polygenic feature, is an example of epistasis. Its fur colour is determined by the interaction of two genes.
What is the most complex level of organization in living things
Answer:
the biosphere
Explanation:
The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Over 99.9% of the solar system is composed of hydrogen and helium. How does this help to explain the size differences between the terrestrial planets and the gas giants?
Explanation:
Gas giants/Jovian planets are also called the outer planets, they are made of gases, they are large and less dense, more moons. Terrestrial/Rocky planets are also called the inner planets. They are made of rocky surface, denser than Jovians, and small, little or no moons.
The information about the composition of solar system has great significance in providing data about size between the terrestrial planets and the gas giants planets.
The size differences occur between the terrestrial planets and the gas giants due to the presence of different concentration of gases in their compositions. Gas giants planets are also called the outer planets which are made up of gases.
They are large in size but having less density and more moons while on the other hand, terrestrial planets are made of rocky surface. They are also called the inner planets. They are more denser than gas giant planets, small in size and less or no moons so we can conclude that there is a great size differences between the terrestrial planets and the gas giants.
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u want point answer this question how many different thing can be diffrent colors
Answer:
Millions of things, all of humanity can see millions, but as for the color, there is more than a million, infinity basically, you can make new colors, but can't see them.
Explanation:
Study says "A healthy human eye has three types of cone cells, each of which can register about 100 different color shades, therefore most researchers ballpark the number of colors we can distinguish at around a million."
what are the objective of air pollution?plz guys ans.
Answer:
Aims of Air Pollution.
Explanation:
URGENT PLEASE:
Explain how a lack of carbohydrates will impact cellular functions and why?
Answer:
Carbohydrates they say is the major classes of food and don't forget they are stored by stach in the body and gives your body energy
Carbohydrates are degraded into sugar which, as a primary source, is required for the brain, muscles and other parts of the human body to function normally.
When you don't get enough carbohydrates, the level of sugar in your blood may drop to below the normal range (70-99 mg/dL), causing hypoglycemia.
Dr. Schweitzer found structures identical to modern red blood cells and blood vessels inside the bone. Which organ system do blood cells and blood vessels belong to? A. circulatory system B. nervous system C. respiratory system D. skeletal system
Answer:
A. Circulatory system
Explanation:
Circulatory system consist of heart,blood cells&blood vessels
NEED HELP PLZ
The following statement is incorrect. Change two words to make it correct.
Capillary action happens when water moves up a vessel against gravity. It is a result of density and solubility working together.
NEED HELP PLZ
Answer:
Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to right) is limited by surface tension and, of course, gravity.
Explanation:
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When the cohesive forces between the liquid molecules are greater than the adhesion to the walls, capillary action results. Surface tension and, of course, gravity set a limit on how high capillary action may raise water in a uniform circular tube (see image to the right).
What is Capillary action in plants?Water is transported to the remainder of the plant by capillary action up the stems and roots. Through the plant, water is transported through capillary action.
Water (the liquid) molecules are drawn to the molecules of the stem's interior (the solid).
The purpose of this attraction is to help lift the water out of the ground and distribute it throughout the plant.
When the forces holding a liquid together—cohesion and surface tension—and the forces drawing that liquid to another surface—adhesion—are stronger than the force of gravity, capillary action takes place.
Therefore, through cohesive forces and surface tension, water moves up a vessel against gravity.
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Which of the following is an example of how electrical energy can be generated?
Answer:
C I guess..
Explanation:
becuse water currents are used to generate electricity...
Wind turning a tightly wound coil inside a magnet is an example of how electrical energy can be generated.
What is an example of electrical energy?As the charges that cause the energy are moving, electrical energy is a form of kinetic energy. Lightning, batteries, and even electric eels are examples of electrical energy in action.
What can generate electrical energy?Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.
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Describe the cycling of carbon in the carbon cycle as it passes through the living and non-living components of the ecosystem.
Answer: Photosynthesis, Decomposition, Respiration and Combustion
Explanation:
The cycling of carbon in the carbon cycle is released from animals and plants in form of carbon dioxide through respiration or released by decomposition and internalized by a process called photosynthesis in plants.
The carbon cycleIt initiates when a plant dies and gets buried turning into fossil fuel. This fossil fuel is burnt by humans converting most of the carbon into carbon dioxide.
Carbon dioxide is added to the atmosphere by respiration of animals and the plants. Plants again use this carbon dioxide to perform photosynthesis thus quickly adding it to their bodies from where the cycle continues.
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How would you identify a floodplain that has not been immersed for a long time?
Answer:
Floodplains are identified as zones on FEMA Flood Insurance Rate Maps (FIRMs). Flood zones are defined by type, depth, and frequency of flooding. But the shape and nature of a floodplain may also change over time as the main channel of a river naturally migrates through erosion and accretion, impacting how and where excess water may first over top the banks of the river during a flood event. Geologically ancient floodplains are often represented in the landscape by fluvial terraces. These are old floodplains that remain relatively high above the present floodplain and indicate former courses of a stream. I HOPE THIS HELPS YOU :)
Explanation:
The geology of a floodplain the natural development of floodplains is primarily influenced by two processes: aggradation and erosion which help to identify that it has not been immersed for a long time.
What do we should know about floodplain ?
The flood fringe extends beyond the floodway. From the floodway's outer banks to a river valley's bluff lines, the flood fringe extends. The point at which the valley floor begins to rise into bluffs is marked by bluff lines, which are also known as valley walls.A generally flat area of land adjacent to a river or stream is known as a floodplain. It extends from the riverbanks to the valley's outermost edges. There are two components to a floodplain. The floodway, which is the river's primary channel, is the first. The channel may be dry for a portion of the year in floodways, which can sometimes be seasonal.The process by which earth is worn away by the movement of a floodway is referred to as the erosion of a floodplain. The term "aggradation" of a floodplain refers to the process by which earthen material expands as sediment is deposited by the floodway. A floodplain is eroded by a river as it meanders or curves.Floodplains are frequently made up of features like oxbow lakes and seasonal wetlands. These features are the result of erosion and deposition.A floodplain's erosion and aggradation, or accumulation of land elevation, may be exacerbated by a meandering stream. A river that is wide, shallow, and braided is a typical aggradation environment. River deltas, where the main floodway is divided into discrete channels and tiny islands, are frequently found in braided rivers.To know more about floodplains check this:
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PLEASE HELP ME IF YOU DONE THIS BEFORE Part 1: Introduction
Title
Title your lab report with a few words that
summarize the lab investigation
Purpose
The lab report should begin with one or two
sentences that state the purpose of the
investigation what you want to see, practice, loam
about, or test. The purpose statement answers the
question "What am I trying to find out by doing this
experiment?"
The three most common types of labs are:
inquiry labs, in which you measure how
changing one variable affects another variable
discovery labs, in which you observe a scientific
phenomenon, perhaps for the first time.
forensic labs, in which you gather and analyze
data as evidence to build an argument in
response to a question, as in a court case,
All three types of labs give you an opportunity to
learn important scientific skills and concepts.
Question
At its core, science is about inquiry, or the act of
asking questions and seeking answers. Most labs
begin as the result of a question, which is why the
introduction of your lab report should include a
question. For example, suppose you notice that you
seem to play basketball better at the court in one
park than in another. After conducting research, you
realize that one of the surfaces of the court at the
park is different from that of your driveway. As a
result, you might formulate the scientific question
"What effect does the court surface have on the
height that the basketball bounces?" To answer this
question scientifically, you could perform several
experiments and gather data,
Hypothesis (or Prediction)
A hypothesis is an initial answer to a question, a
possible explanation or expectation based on prior
knowledge or research. Before starting most lábs,
you will formulate a hypothesis. It should be listed in
the introduction of your tab report
A good scientific hypothesis states conditions,
expected results, and possible reasons for those
results, For example, you could respond to the
basketball question with a hypothesis like "If the
court surface is smooth concreto, as the park's
court is, then the basketball will bounce higher,
because smooth surfaces have better contact with
the ball." Like this hypothesis, hypotheses are often
structured using the format "il then, because
which is described below.
The "it' portion of the hypothesis describes
something that you will change in the experiment
• The "then" portion of the hypothesis describes
what you think will happen as a result of that
change
• The "because" portion of the hypothesis
describes the ason why you think that change
will occur
In other laboratory activities you will be asked to
make a prediction. You will conduct background
research, then predict the outcome of a known
scientific process
Special Note about inquiry Labs
For inquiry labs, questions are generally
written in the form of "What is the effect of X on
Y?" Hypotheses will generally be in the form of
X [describe how you will change X during the
experiment), then Y will predict how y will
change in response), because give your
reason." In many inquiry labs the variables
lend themselves to a scatterplot (X-Y plot)
For anyone else who needs help just write an essay on what ionic bonds are. Then write what covalent bonds are. Then write the difference between them. It’s better than getting in trouble for using someone else’s work.
The student guide made it very confusing as if you were doing a project but it’s not, it’s just an essay.
Answer:
Was gonna use some links but {insert anger} brainly doesn't allow it.
Explanation:
There are primarily two forms of bonding that an atom can participate in: Covalent and Ionic. Covalent bonding involves the sharing of electrons between two or more atoms. Ionic bonds form when two or more ions come together and are held together by charge differences.
Search up: "Ionic bonds vs Covalent bonds" if you need more to write about
answer pls and thank u
A solution is a chemical reaction?
Answer:
False
Explanation:
A solution does not have to be a chemical reaction. Salt and water is a perfect example. Even though salt will dissolve in water, there is no chemical reaction going on. Salt remains salt and water remains water. The salt can easily be recovered by evaporating off the water.
Some solutions can be a chemical reactions but not all have to be.