Answer: I'm pretty sure this is true
Explanation:
In 20 words or fewer, what science questions would you ask about the video?
Answer:
What is the video about? Who came up within the Concept
Explanation:
What is unique about the
protein channels which allow molecules to travel by facilitated diffusion?
A. Each channel only allows one type of molecule to pass through it
B. The channel modify the molecules DNA as they pass-through
C. The channels move molecules very quickly
Please help!!!! 10 points
Answer:
A. Each channel only allows one type of molecule to pass through it
Explanation:
Transmembrane proteins from channels spanning the membrane that create hydrophilic tunnels. They only enable diffusion across the protein channel into the cell, for their target molecules.
These are highly specific-they only allow one type or group of related molecules to use the channel. These are types of transmembrane channels, embedded within the membrane, help to maintain selective permeability, while simple diffusion of other small, uncharged molecules can readily occur.
I will give brainliest. I will report you if you give me dumb answer
A mutagen is
A.) a living thing that has undergone a mutation.
B.) an agent that causes a mutation in DNA.
C.) a mutation that has affected one gene.
D.) any chemical that can poison living cells.
its b
A mutagen is a chemical or physical phenomenon, such as ionizing radiation, that promotes errors in DNA replication. Exposure to a mutagen can produce DNA mutations that cause or contribute to diseases such as cancer.
Explanation:
In which state of matter does a mineral exist?
a) solid
b) liquid
c) gas
d) plasma
e) more than one of these
Answer:
its plasma
Explanation:
Two students are given cubic boxes, measuring 10 cm on a side. Robert puts a single glass marble with a
diameter of 10 cm in the box. Susan puts 1,000 1-cm glass marbles in her box.
1. Whose box has more empty space? Explain.
Answer:
Both boxes have the same amount of empty space
Explanation:
Given
Cube Box
[tex]Length = 10cm[/tex]
Robert:
1 glass marble
[tex]Diameter = 10cm[/tex]
Susan:
1000 glass marble
[tex]Diameter = 1cm[/tex]
Required
Whose box has more empty space?
First, we need to calculate the volume of the cubic box.
[tex]Volume = Length^3[/tex]
Substitute 10cm for Length
[tex]Volume = 10^3[/tex]
[tex]Volume = 1000cm^3[/tex]
Next, calculate the volume of Robert's glass
Volume is calculated as:
[tex]Volume = \frac{4}{3}\pi r^3[/tex] ---- Volume of a sphere
Where
r = radius
[tex]r = \frac{1}{2} * Diameter[/tex]
[tex]Diameter = 10cm[/tex] --- Given
Substitute 10 for diameter
[tex]r = \frac{1}{2} * 10cm[/tex]
[tex]r = 5cm[/tex]
So:
[tex]Volume = \frac{4}{3}\pi r^3[/tex]
[tex]Volume = \frac{4}{3} * \frac{22}{7} * 5^3[/tex]
[tex]Volume = \frac{4}{3} * \frac{22}{7} * 125[/tex]
[tex]Volume = 523.8cm^3[/tex]
Next, we determine the volume of Susan's 1000 glasses
Volume is calculated as:
[tex]Volume = \frac{4}{3}\pi r^3[/tex] ---- Volume of a sphere
Where
r = radius
[tex]r = \frac{1}{2} * Diameter[/tex]
[tex]Diameter = 1cm[/tex] --- Given
Substitute 1cm for diameter
[tex]r = \frac{1}{2} * 1cm[/tex]
[tex]r = 0.5cm[/tex]
Substitute 0.5cm for radius in [tex]Volume = \frac{4}{3}\pi r^3[/tex]
[tex]Volume = \frac{4}{3} * \frac{22}{7} * 0.5^3[/tex]
[tex]Volume = \frac{4}{3} * \frac{22}{7} * 0.125[/tex]
[tex]Volume = 0.5238[/tex]
But there are 1000 glasses.
So, the volume of 1000 glasses is:
[tex]Volume = 0.5238 * 1000[/tex]
[tex]Volume = 523.8cm^3[/tex]
--------------------------------------------------------------------------------------------------------------
For Robert:
[tex]Volume = 523.8cm^3[/tex]
For Susan:
[tex]Volume = 523.8cm^3[/tex]
Since, they have the same volume.
Both boxes have the same amount of empty space
From the dimensions of glass marble for robert and susan, we can say that; none of the given boxes have more empty space.
We are told that the cubic boxes have a measure of 10 cm for its' sides.
Formula for volume of a cube is;
V = lwh
where;
l is length
w is width
h is height
Thus; V = 10 × 10 × 10
V = 1000 cm³
For Robert;
We are told that he puts a glass marble with a diameter of 10 cm in the box. The glass is usually spherical in shape and the volume of a sphere is;
V = ⁴/₃πr³
Thus;
V_rob = ⁴/₃π × (10/2)³
V_rob = 523.6 cm³
Volume left for rob = 1000 - 523.6
Volume of empty space left for rob = 476.4 cm³
For Susan;
V = ⁴/₃πr³
Thus;
V_sus = ⁴/₃π × (1/2)³ × 1000
V_sus = 523.6 cm³
Volume left for susan = 1000 - 523.6
Volume of empty space left for susan = 476.4 cm³
Read more at; https://brainly.com/question/3948796
Your body always needs energy. What do you use first, second, and third for energy?
Answer:
eat drink water take a shower take a walk
Answer:
first: glucose
second: starches
third: fats
Explanation:
what was abc in duch
Answer:
ur butthole jasmine
Explanation:
Answer:
Dutch alphabet (Nederlands alfabet)
Dutch alphabet (Nederlands alfabet)Y is also known as Griekse ij, i-grec or ypsilon.
Believe it or not, ____________ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the ____________ and flows in ____ direction to ____________, to ____________, and, finally, to ____________.
Answer:
Energy
Sun
One
producers
Consumers
Decomposers
Explanation:
Believe it or not, __Energy__ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the __Sun__ and flows in __One__ direction to _producers_, to _Consumers_, and, finally, to _Decomposers_.
Nutrition is a broad field that involves the foods you consume, the nutrient content of those foods, and how those foods and their nutrients affect your health and wellness. Health effects can include how you feel on a daily basis, as well as your risk for certain diseases in the future.
Choose the option below that does not describe the science of nutrition.
A. Many studies have been conducted on the association between certain types of cancer and diet and, therefore, these links are well-understood.
B. Matters surrounding global food supply and food production are integral parts of the study of nutrition.
C. Nutrition science involves the study of the digestion and absorption of food.
D. Recent focus in nutrition science has shifted to the prevention of conditions like heart disease and diabetes
Answer:
A
Explanation:
The correct option that does not describe the science of nutrition would be that many studies have been conducted on the association between certain types of cancer and diet and, therefore, these links are well-understood.
While truly indeed many studies have been conducted linking certain types of cancer and diet, scientists are far from understanding the link between diets and cancer. While some degrees of understanding exists, it is not 100% certain that there is a cause-effect relationship between these two factors, and a large percentage of cases of cancer are caused by factors that cannot be controlled.
The correct option is, therefore, A.
Help plzzzz
Which of these is an interaction in which the host is harmed? (4 points)
a
Competition
b
Mutualism
c
Predation
d
Parasitism
Answer:
parasitism
Explanation:
parasitism: Interaction between two organisms, in which one organism (the parasite) benefits and the other (the host) is harmed.
Clostridium Difficile (C. difficile) is a type of bacteria that increases its activity with most antibiotic use, and is therefore very difficult to treat. Research shows that the most effective way to prevent the spread of infection is frequent handwashing. However, many people have flat-out refused to wash their hands in hospitals. The government is contemplating passing a policy to make it mandatory for people entering hospitals to wash their hands or else risk not being seen by doctors and being escorted out of the building against their will. Do you think the government should go ahead with this plan?
Consider and discuss the legal, ethical or practical problems that exist for each action option and conclude with a persuasive argument supporting your decision.
Answer:
The government should not go ahead with this plan.
Explanation:
If the government decides to proceed with its plan to pass a law that authorizes the management of a hospital to force people who refuse to wash their hands out of a hospital and deny them medical care against their will, then the government will be infringing on people's right to life. While it is necessary to prevent the spread of Clostridium Difficile (C. difficile) , any law that is made to that effect must not abuse the right of access to medical care which is a fundamental right of citizens. This action will be ethically incorrect because it amounts to a government using a high handed approach in discharging its duties.
However, the intention of such a law is to protect the citizenry from the bacteria Clostridium Difficile (C. difficile) . If such a law is not passed, more people may become infected by the bacteria owing to the carelessness of other people. This situation is made worse because the organism is resistant to antibiotics.
However, since prevention of the spread of Clostridium Difficile (C. difficile) is Paramount, I opine that the government should continue to enlighten citizens and appeal to them on the need to practice regular hand washing in order to protect themselves and other people. Passing the said law is a draconian approach to the problem hence it is not in line with the ethics of modern civilization.
It is more civil to continue to appeal to citizens and sensitize them on the importance of regular hand washing as it affects the spread of Clostridium Difficile (C. difficile) .
Since the initial acceptance of cell theory, recent advances in biotechnology have provided scientists with far more information about the structure and function of cells. How has the discovery of DNA and our current understanding of the cell cycle affected cell theory?
A. Cell theory was rejected after new evidence showed that DNA contains hereditary information.
B. Cell theory was elevated to a scientific law.
C. Cell theory was expanded to include new components.
D. Cell theory was replaced by a new theory that includes viruses as basic units of life.
Answer:
c
Explanation:
can't be a because
the cell theory is still around it was not rejected nor can it be b because Cell theory is a theory, not a law because the cell theory does not have enough support to become a law. nor can it be d bc its still around it was not replaced. c makes the most sense bc The expanded version of the cell theory can also include: Cells carry genetic material passed to daughter cells during cellular division. All cells are essentially the same in chemical composition. Energy flow (metabolism and biochemistry) occurs within cells. hope i helped
how can drip irrigation be useful in farming
Answer: It helps control the water better and more efficiently. It also helps to save water
Explanation:
the following in NOT a component of a prokaryotic cell
a. nucleus
b. ribosomes
c. cell wall
d. flagella
how do skin cells replace itself after an injury?
a) skin cells go through the process of budding to make new identical cells.
b) skin cells go through the procces of mitosis to make new identical cells.
c) skin cells go through the process og photosynthesis to make new identical cells.
d) skin cells go through the process of cellular respiration to make new identical cells.
Answer:
d
Explanation:
as a result of accumulation of waste products in the body , these substances are removed from the body via the skin hence they undergo cellular respiration
Answer:
b) skin cells go through the process of mitosis to make new identical cells.
Explanation:
The skin is the largest organ in the human body; it forms a protective barrier that keeps out external pathogens, and is integral to waste removal. When the organ is injured, damaged cells initiate an immune response, while healthy cells nearby begin to replicate.
This type of cell replication involves somatic cells and results in the diploid number of chromosomes called mitosis. Skin cells are somatic- they contain all 24 pairs of human chromosomes. During replication, the chromosomes are unwound, and copied- then, the newly copied chromosomes separate into two identical daughter cells with the same chromosome number.
I WILL GIVE BRAINLIEST
Meiosis produces which cell type?
haploid
diploid
chromosome
somatic
Answer:
it produces haploid cells
Explanation:
hope this help :D
The Earth remained a frozen snow ball until carbon dioxide levels in the atmosphere increased. Why did carbon dioxide from the volcanoes fill the atmosphere?
Answer:
Because the land surface was then largely covered in ice, continental weathering effectively ceased. This locked the planet into a 'Snowball Earth' state until carbon dioxide released from ongoing volcanic activity warmed the atmosphere sufficiently to rapidly melt the ice cover. This model does not, however, explain one of the most puzzling features of this rapid deglaciation; namely the global formation of hundreds of metres thick deposits known as 'cap carbonates', in warm waters after Snowball Earth events.
The Southampton-led research, published in Nature Geoscience, now offers an explanation for these major changes in ocean chemistry.
Lead author of the study Dr Tom Gernon, Lecturer in Earth Science at the University of Southampton, said: "When volcanic material is deposited in the oceans it undergoes very rapid and profound chemical alteration that impacts the biogeochemistry of the oceans. We find that many geological and geochemical phenomena associated with Snowball Earth are consistent with extensive submarine volcanism along shallo
Explanation:
Marine biology I need this as fast as you can please and thank you. 20 points.
Formerly classified under algae, (*blank*) are a group of organisms that biologists now place under kingdom (*blank*). Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called (*blank*).
Answer:
Formerly classified under algae, Protista are a group of organisms that biologists now place under kingdom Plantae. Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called autotrophs/producers.
Explanation:
The first and second blanks are the right answers, but the third blank could be autotrophs or producers.I NEED ANWERS ASAP!!!When you view the pendulum’s swing, it shows that at the very top of the swing KE = 0. What does that tell you about the pendulum’s motion at that point?
Answer:
If KE = 0, the pendulum is not moving. At the top of the swing, the pendulum must stop for a brief moment.
Explanation:
Answer:
If KE = 0, the pendulum is not moving. At the top of the swing, the pendulum must stop for a brief moment.
Sorry I'm late but I hope this helps someone lol
Explanation:
how do the weight of objects on earth compare the weight of the objects on the moon why do you think this is
Answer:
Being that the moon has a gravitational force of 1.622m/s 2, we multiply the object's mass by this quantity to calculate an object's weight on the moon. So an object or person on the moon would weigh 16.5% its weight on earth. Therefore, a person would be much lighter on the moon. Conversely, a person is 83.5% heavier on earth than on the moon.
Explanation:
hope this helps you out love!! <3
Answer:
weight of objects on EARTH> weight of objects on MOON
Explanation:
weight= mass * gravity
assuming both objects have the same mass, the environment with greater gravity will result in a greater weight
gravity of earth > gravity on the moon
so
weight of objects on EARTH> weight of objects on MOON
Gizmo:
Observe: Select Add, and then click in the center of the landscape exactly four times. Click Horizontal view and use the Zoom in tool to magnify the landscape.
A.
What feature have you created?
B.
Look at each contour line on the horizontal view at left. What do you notice?
Answer:
answer a is trash answer b add a vertical line
Explanation:
Can y’all please help?
what is the most common type of petrified remain fossils
Answer:
After an organism is buried, minerals carried by water such as silica, calcite or pyrite replace the organic material in the fossil. Some common examples are most dinosaur bones, petrified wood, and many trilobite fossils.
Answer:
The answer is wood
Explanation:
guys pls help...who are the energy forms in biology pls a have an project
Answer:
electrical energy, light energy, mechanical energy, and heat energy? or maybe Kinetic, potential, and chemical energy
Explanation:
someone plz help I'll give brainliest
how would you describe the effect of a 1°c increase of temperature on the biodiversity of the habitat in terms of number of populations and number of individuals in te population? use evidence from your graph and table to support your answer
Answer: population of sponges and algae will decrease and population of staghorn coral and boulder star coral will increase.
Explanation: You can see how green and yellow line started to go down and red and purple went up
Help please lollll .
Answer:
the answer is an organ system
Explanation:
The deepest parts of the ocean have much different food chains than most shallow ocean or terrestrial ecosystems. Since there no plants in these areas, Chemoautotrophs usually functions as producers in these ecosystems. Chemoautotrophs are organisms that make their own food using the chemicals found around them. Which statement describes why chemoautotrophs are needed to fill this role in these environments?
A. Plants are unable to survive in salt water
B. Chemoautotrophs have eaten all the plants in the ecosystem
C. Sunlight cannot reach the ocean bottom so the plan are unable to grow
D. Without pollinators, it is impossible for plants to reproduce at greater ocean depths
Answer: C
Explanation: It is
Answer: C. sunlight cannot reach the ocean bottom so plants are unable to grow
Explanation: The deepest parts of the ocean dont contain plants because the sunlight wouldn’t be able to reach in order for plants to grow. this is why we see plants in the more shallow areas of the ocean.
Is brown algae a plant like protist or a fungi like protist? Why?
Answer:
brown algae is seaweed
Explanation:
which is a plant
2. How are the kelp and the chemosynthetic bacteria of the
hydrothermal vents similar?
A. Both use energy from the sun to make food.
B. Both are primary producers.
C. Both are scavengers.
D. Both use hydrogen sulfide as an energy source.
Answer:
C. Both are primary producers.(THIS IS THE CORRECT ANSWER)
Explanation:
Chemosynthesis is a biological conversion of carbon molecules. These are found around the hydrothermal vents.
It is due to the bacteria feeds on the hydrogen sulfide that is coming out from the vents that are required as an energy tonic for the bacteria to survive and kelp also has similar requirements. Kelps forests are shelters for these bacteria and hence both are found near the source of energy.Hence the option B both are primary producers.
brainly.com/question/19578387.