Answer:
represents the flow of water through its concentration gradient, through a semi-permeable membrane.
Explanation:
This means that water flows from where it is in a higher concentration to a place where it is in a lower concentration to try to equalize the concentrations of both solutions.
Osmosis is an example of diffusion when molecules tend to be evenly distributed in space.
An object with a mass of 30 kg is located on a cliff 50 m above the ground. What is its gravitational potential energy
a. 1500 j
b. 14,700 j
c. 1.7 j
b. 14,700 J
Because,
Potential energy
= m.g.h
= 30 kg × 9.8m.s^-1 × 50m
= 14700 kg.m^2.s^-2
= 14700 J
PLEASE HELP ME ILL MARK BRAINLIEST CORRECT ANSWer thank you
Answer:
I think it might be C. .......
Explanation:
What are the two main differences between capillaries in the periphery and capillaries surrounding the brain
Answer:
The options are not given but they are gotten from another websites.
A. Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.
B. Capillaries surrounding the brain have pores and are surrounded by membranes of astrocyte cells.
C. Capillaries surrounding the brain have no pores and are not surrounded by membranes of astrocyte cells.
D. Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.
The correct answer is option A.
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.
Explanation:
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells because
Capillaries are tiny blood vessels in the circulatory system that connect aterioles to venules. They are the most abundant or they are much blood vessels. They can penetrate the tissues of the body which allow passage of food nutrients, oxygen in the body thereby allowing exchange of nutrients and oxygen between the body tissues and the blood.
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells while capillaries in the periphery Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.
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The environment limits population growth by changing birth and death rates. Briefly describe how each environmental factor listed below influences population size. Also, identify each environmental factor as a biotic or abiotic factor
Competitors
Disease
Food
Ph level
Prediction
Soil type
Temperature
Water availability
Answer:
Disease
Ph level
Water availability
Soil type
Explanation:
Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.
Mitosis occur in somatic cells while meiosis occur in the germ cells to produce gametes.
MITOSIS:
Two diploid daughter cells form that are genetically identical the parent cell.Homologous chromosomes do not pair in mitosis.In mitotic cells one row of chromosomes line up at the center.The nucleus of the cell divides only once.MEIOSIS:
Four haploid daughter cells form that are genetically different to the parent cell.Each homologous chromosome pairs after replication.Tetrads or group of four cell form and crossing over sometimes occur.Paired homologous chromosome line up across the center of the cell.Therefore, mitosis occur in somatic cells while meiosis occur in the germ cells.
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Bright purple true breeding plums(P) was bred with white true breeding plums
(p). The F1 generation were light lilac. One F1 individual for the above was then
used in a testcross. What proportion of the progeny will be white?
Answer:
The correct answer is - 50% or 1/2.
Explanation:
In the given case it is given that the true-breeding purple (P) plum bred with true-breeding white (p) plum and result in light lilac offsprings which suggests that there is incomplete dominance between these genes.
By the cross of these parent generation, there would be all heterozygous offspring that then used in testcross which is the cross between the dominant phenotype to the recessive plant so,
Gametes: P, p and p, p
P p
p Pp pp
p Pp pp
So the half or 1/2 proportion of the total offsprings would be white plums.
how would scientists know if populations are increasing or decreasing over
Answer:
The statistical study of populations and how they change over time is called demography. Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume.
Explanation:
In a food web, where should all organisms have the arrows pointing to? Multiple choice question: (Consumers, producers, decomposers)
Answer:
producers
Explanation:
producers are usually plants and veggies/ fruits. These producers don't get their energy from other organisims. They get it from sunlight and water etc. They are the end stage of the food chain.
Chromatography is an analytical test used to closely examine which aspect of fibers? *
1 point
Cross Section
Light Absorbtion
Dye Composition
Fiber Composition
Hope it helped you
Is there a scientific discovery in today’s world that has been overshadowed by popular belief? Explain. What role do you think popular belief has on scientific discoveries?
The history of science is also a history of people resisting new discoveries that conflict with conventional wisdom.
When Galileo promoted Copernicus’ theory that the Earth revolves around the sun – counter to church doctrine about the Earth being the center of the universe – he wound up condemned by the Roman Inquisition in 1633. Charles Darwin’s theory of evolution – that new species develop as a result of natural selection on inherited traits – ran into opposition because it contradicted long-held scientific, political and religious beliefs. Alfred Wegener’s 1912 proposal that Earth’s continents move relative to each other – the theory of continental drift – was rejected for decades, in part because scientists held fast to the traditional theories they’d spent careers developing.
These kinds of examples aren’t only historical, unfortunately. We’re used to hearing about how the general public can be dense about science. You might expect some portion of everyday folks to take their time coming around on truly groundbreaking ideas that run counter to what they’ve always thought.
But scientists, too, hold their own personal beliefs – by definition, based on old ways of thinking – that may be holding back the innovation that’s at the heart of science. And that’s a problem. It’s one thing for an average Joe to resist evolving scientific theories. It’s quite another if a scientist’s preconceived notions holds us back from discovering the new and unknown – whether that’s a cure for Zika or a cutting-edge technology to combat climate change.
Personal beliefs as publication roadblocks
Real scientific progress occurs when laboratory or field research is reported to the public. With luck, the finding is accepted and put into practice, cures are developed, social policies are instituted, educational practices are improved and so on.
This usually occurs though publication of the research in scientific journals. There’s an important step between the lab and publication that laypeople may not know about – the evaluation of the research by other scientists. These other scientists are peers of the researcher, typically working in a closely related area. This middle step is commonly referred to as peer review.
In a perfect world, peer review is supposed to determine if the study is solid, based on the quality of the research. It’s meant to be an unbiased evaluation of whether the findings should be reported via journal publication. This important step prevents sloppy research from reaching the public.
However, in the real world, scientists are human beings and are often biased. They let their own beliefs influence their peer reviews. For example, numerous reports indicate that scientists rate research more favorably if the findings agree with their prior beliefs. Worst of all, these prior beliefs often have nothing to do with science but are simply the scientists’ personal views.
‘But that’s counter to what I thought…’
How is this a problem for scientific innovation? Let’s look at how some personal beliefs could prevent innovative science from reaching the public.
Minorities aren’t good at STEM.” The stereotype that “women are not good at math” is commonly held – and also happens to be incorrect. If a scientist holds this personal belief, then he is likely to judge any research done by women in STEM (Science, Technology, Engineering and Mathematics) more negatively – not because of its quality, but because of his own personal belief.
For instance, some studies have shown that female STEM applicants in academia are judged more harshly than their male counterparts. Because of this gender bias, it may take a female STEM researcher more time and effort before her work reaches the public.
Some racial minorities face similar kinds of bias. For example, one study found that black applicants are less likely to receive research funding from the U.S. National Institutes of Health than equivalently qualified whites. That’s a major roadblock to these researchers advancing their work.
However, people often believe that comic books are just low-brow entertainment for kids. If a scientist holds this personal belief, then she’s likely to judge any psychology research using comic books more negatively. Because of this, scientists like me who focus on comic books may not be able to publish in the most popular psychology journals. As a result, fewer people will ever see this research.
The history of psychology supplies one example. Behaviorism was psychology’s dominant school of thought for the first part of the 20th century, relying on observed behavior to provide insights. Its devotees rejected new techniques for studying psychology. During behaviorism’s reign, any talk of internal processes of the mind was considered taboo. One of the pioneers of the subsequent cognitive revolution, George A. Miller, said “using ‘cognitive’ was an act of defiance.” Luckily for us, he was defiant and published one of the most highly cited papers in psychology.
The scientific endeavor requires belief. There would be no science if people didn't have faith in the objectivity of other scientists' work.
What is the importance of scientific discoveries?New techniques, new galaxies, new planets, and potentially even the existence of life on them are just a few of the previously unthinkable possibilities that science has made feasible. Further possibility lies in the future.
Scientism is a very odd word, but for reasons we will see, it is an important one. Despite being a relatively new term, it is connected to numerous other “isms” that have a long and violent history.
The moral standing of professors and mentors, the order and understanding of nature, and the compatibility of reason and truth.
Therefore, scientific discovery in today’s world that has been overshadowed by popular belief.
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Which of the following are outputs of photosynthesis that are used as inputs for cellular respiration? [SELECT ALL THAT APPLY]
a. H20
b. CO2
c. O2
d. C6H12O6
HELP ASAP
what characteristic do protozoa display?
A . autotrophic
B . motile
C . vertebrate
D .prokaryote
6)Why do the walls of the stomach secrete hydrochloric acid?
7)Which TWO parts of the alimentary canal make up the small intestine?
1.The enzyme pepsin.Pepsin breaks down proteins in the stomach
2 Im pretty sure its the duodenum and the ileum
The Sun is a fairly normal star.
True
False
Answer:
Yes.
Explanation:
The Sun is a medium sized star
Photosynthesis and respiration depend on each other for the exchange of:
Which product of respiration is used for tissue repair and cellular function?
carbon dioxide
water
energy
oxygen
Answer:
energy c
Explanation:
Its
Answer:
energy
Explanation:
Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, groundwater ,ice.
Answer:
Surface water <---> river
Ground water <------> well
Water vapour <------> atmosphere
Glacier <-------> ice
Explanation:
Answer:
Plato
Explanation:
We have learned to:
control some energy forms
destroy some energy forms
make some energy forms
Answer:
Energy can not be created or destroyed. Therefore, the only possible answer is that we learned to control some energy forms. Hope this helps :)
Explanation:
Answer:
Thae answer is "control some energy forms"
Explanation:
why did china remain isolated
Answer:
In the last 50 years or so of the Ming Dyansties, the emperor simply lacked the necessary resources and man power to sustain large amounts of trade, causing China to become isolated from the world.
Explanation:
Which is the most efficient way to avoid DNA mutations from UV radiation?
Answer:
Hi, I belive the correct answer your looking for is C. Avoid Uv radiation by wearing sunscreen.
Explanation:
Why?- Well the first two A,B are incorrect because X-rays cant really protect you from Uv radiation and The last one D a tanning bed are you kidding me nope definitely wrong.
Answer:
c
Explanation:
What is one way the body lowers its temperature?
Answer:
Sweating
Explanation:
Sweating is your body's way of naturally reducing body temperature. By sweating, your body releases heat then the sweat on your body cools down, eventually, cooling your body down.
Answer:
if your talking about heat, then the body starts sweating to cool its self down.
Explanation:
fill in the blanks human beings continue to grow Till the age of dash
Answer:
Human beings continue to grow till the age of 20.
Answer:
most people don't reach full maturity until the age of 25
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Mitosis is responsible for creating what cells in organisms?
Group of answer choices
All cells in sexually reproducing plants
Only skin and hair cells
All cells, except sex cells
Only sex cells, known as gametes
Answer:
All cells except sex cells
Explanation:
Observe an ecosystem near your home and describe the biodiversity of your chosen ecosystem. PLZZZ HELPP idc if its from a photo just Helpp mee
Answer:
A garden is a ecosystem that is near my house. the biodiversity of garden is fresh green leaves for caterpillars, and floral resources (pollen and nectar) for pollinators.
Explanation:
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Mark me brainlist plzzzzzzzzzzzzzzzzzzzzzzzzz
) What happens when a phosphate group is removed from an ATP molecule?
a. carbohydrates are stored b. water is released
c. energy is stored
d. energy is released
Answer:
D. energy is released
Explanation:
In the process of hydrolysis, a phosphate group is removed and energy is released. This then converts the ATP molecule into ADP (adenosine diphosphate).
How does the amount and type of fuel impact the distance a spacecraft can travel?
A space ship's momentum will continue to carry it forward indefinitely at a constant speed after the engines are turned off.
What do you mean by momentum?Momentum in a simple way is a quantity of motion. Here quantity is measurable because if an object is moving and has mass, then it has momentum. If an object does not move then it has no momentum.
Momentum, finance, refers to the capacity for a price trend to sustain itself going forward. Strong momentum can continue in an upward or downward trend, which can be confirmed by changes in trading volume and other technical indicators.
Momentum is how we measure mass that is in motion. Any moving object will have momentum. Under the law of physics, the object's momentum equals mass times velocity. Momentum is affected by the parameters' mass as well as velocity.
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why was it important to convert all of the foods to a 100 gram sample??
Answer:
*deep breath* I HAVE no clue what so ever I'm so sorry XD
Explanation:
Why does a microaerophilic organism grow only in the middle depth region of a Fluid Thioglycollate Medium tube
Answer:
A microaerophilic organism grows only in the middle depth area of a Fluid Thioglycollate Medium tube because the mid area of the tube has moderate levels of oxygen and significantly higher amounts of carbon dioxide.
Explanation:
A microaerophile organism is one that cannot survive or thrive in a region with normal levels of atmospheric oxygen. It prefers environments with a lower concentration of oxygen and higher amounts of carbon dioxide.
Fluid Thioglycollate Medium tube is used during experiments to determine which organisms are aerobes (that is can thrive well in and require oxygen to survive), from those which are anaerobes (cannot tolerate oxygen and may die in its presence) and microaerophilic organisms.
At the bottom of the Fluid Thioglycollate Medium tube, there is zero oxygen whilst at the top, there is lots of oxygen. Towards the midsection, there is less oxygen and more carbon dioxide. The Thioglycollate mixture contains the following:
Sodium thioglycollateThioglycolic acidL-cystine, Methylene blue, and 0.05% agar.Cheers
Peristaltic action ensures food is pushed through the
Answer:
Peristaltic action ensures food is pushed through the Esophagus.
hope it helps!
You are so Brainly right now.
Answer:
Sorry, not funny.
Answer:
don't get it
Explanation:
have a nice day!!! :)
Brainiest is appreciated