Answer:
A. A water molecule passes through a semi permeable membrane
Explanation:
Facilitated diffusion is the diffusion of a molecule without any assistance from a protein or protein channel.
In facilitated diffusion, a molecule will diffuse by itself through a semi permeable membrane, such as the cell membrane.
Answer choices B, C, and D are incorrect because they are all examples of facilitated diffusion. The molecules required assistance from a protein.
Answer choice A is correct because the water molecule was able to pass through by itself.
So, the correct answer is A. A water molecule passes through a semi permeable membrane
What knowledge did Darwin’s theory need in order to be tested, which he didn’t have at the time?
A. Adaptations
B. Age of the Earth
C. Living organisms
D. Fossils
Answer:
B. Age of the Earth
Explanation:
The answer can be found on the slide with the heading "Could Darwin Explain Everything?"
Victorian scientists found it difficult to test Darwin's theory. For Darwin's theory to work, the Earth needed to be millions of years old, but it's age was not known at the time.
Therefore, the answer is B. Age of the Earth.
help please on number 7
After lab, you start working on your post-lab conclusion assignment, which asks you to
expand upon knowledge you gained during the lab exercise. You didn't fully understand
the significance of the lab exercise, so you call your lab partner and ask them to help you
answer your post-lab conclusion questions.
Answer:
Explanation:
duh
explain movement in fern
Answer:
One of the most typical ways that plants like ferns move is through a process known as phototropism. Essentially, they move and grow towards light .Plants may also move or grow in response to other stimuli, in addition to light. They can grow or move in response to physical touch, in response to a chemical, or toward warmth
explain how the freshness of the mushroom can be maintained using salt solution for a week.
Answer:
salt is a preservative that is used to preserve food. deep the mashroom into the solution
They believe this is accomplished, in part, through chanting and spinning, which Sufis believe allows them to experience God in a trance state.
The water is gathered in lakes or oceans or frozen in snow and ice.
The water is trapped as water vapor in the atmosphere and clouds.
There is constant rain or snow falling on the planet's surface.
Water is frozen underground instead of flowing on the surface.
Answer:
THE ANSWER IS B IT TRAPPED...
What does it mean if a science paper is peer-reviewed
and why is this significant?
Studying habitats and how they are affected
by animal and human intervention falls under
what field?
HURRY
Which is true about a liquid but not a gas?
1. It has more internal energy than the solid state.
2. It will change shape and take the shape of its container.
3. It allows particles to move past each other relatively easily
4. It has close to a constant volume as pressure is applied to it.
Which of the following describes the primary structure of amino acids?
A chain sequence of amino acids
Hydrophobic interactions between side chains
Disulfide bridges between side chains
Alpha helix coil held together by hydrogen bonding
Answer:
A chain sequence of amino acids..
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what is meaning of reclusive???
Answer:
The meaning of reclusive is avoiding the company of other people, solitary.
hope it helps
Answer:
living a solitary life
Hindi m Akelapan
Describe the general temperature of ocean currents near the equator and the poles.
Answer:
Currents flowing away from the Equator are generally warm.
Explanation:
That is because the Equatorial regions is the source of warm air and water. Ocean currents flowing from the Equator thus carry this warm water with them. The most prominent example is the Gulf Stream in the Atlantic Ocean, which runs most of the way to the North Pole and brings mild winter climates in its wake to adjacent coastal areas. In the Pacific Ocean the Alaska Current likewise carries warm water northward making Anchorage, Alaska much milder in winter than inland areas with the same latitude.
Why are liposomes important to the health of cells
Matching: Classify the characteristics of the macromolecules in the list.
Adenine (A), cytosine (C), guanine (G), thymine (T)
2. Bread, rice, potatoes, pasta
3. Butter, vegetable oil, lard, egg yolks
4. Carbon - Water
5. Cholesterol, steroids, and cell membranes
6. Commonly called fats
A. Carbohydrates
7. Compose muscles, hormones, and enzymes
B. Lipids
8. Deoxyribonucleic acid and Ribonucleic acid
C. Nucleic acids
9.
Fish, milk, eggs, meat
D. Proteins
10. Form chains of polypeptides
11. Fructose, sucrose, maltose, lactose, galactose
Answer:
1. Proteins
2. Carbohydrates
3. Lipids
4. Nucleic acid
5. Lipids
6. Carbohydrates
7. Proteins
8. Nucleic acid
9. proteins
10. Lipids
11. Carbohydrates
Explanation:
what is a common form of a single celled organism
Answer:
Bacterium
Explanation:
There are many different types of bacteria on the planet, and they are all unicellular prokaryotes. They are on my hands, on your hands, in the air, probably on my dusty-crusty laptop, too. A lot. Now that I think about it, I should probably clean off my keyboard
What Organelles do plants cells have that animal cells do not? Why won't animal cells need these organelles? NO COPY AND PASTE!
Answer:
Chloroplasts
Explanation:
Chloroplasts are only in a plant cell because it allows plants to capture the energy of the sun. Animals do not need them because they don't produce energy. They get their energy by eating plants and or other animals
Which of the following is a result of two continental crusts buckling and cracking? *
The result of two continental crusts buckling and cracking is San Andres Fault.
The San Andrés fault is a geological fault that is about 1,300 km long. This fault is located in the western part of the United States, specifically in the state of California, and reaches a part of Mexico.
The San Andrés fault arose as a result of the tectonic encounter between the North American Plate and the Pacific plate and their relative horizontal displacement.
A characteristic aspect of this fault is the great crack and buckle that is produced through a long territory. In addition, the earthquakes of 1857, 1906, 1989, 1940, among others.
According to the above, the correct answer is option D because it mentions the correct geological event, while the other options mention phenomena that are not related to the meeting of two continental plates.
Learn more in: https://brainly.com/question/737952
What makes Earth unique among the terrestrial planets?
It is hotter than all of the other terrestrial planets.
It has a core that's made of iron.
It is home to a variety of life forms.
Its orbit around the Sun is roughly circular.
What condition is characterized by an imbalance of salts or chemicals in the blood?
Answer:
Hyponatremia occurs by an imbalance of salts or chemicals in the blood.
why aren't viruses considered living things?
Answer:
because they are microscopic organism
Assume that a 100 base pair DNA ladder contains 45 cytosines. How many guanines are there?
Answer:
45 guanines
Explanation:
In a DNA strand, each nitrogen base only pairs with one other specific base.
Adenine pairs with thymine, and cytosine pairs with guanine.
This means that the amount of adenine is always equal to the amount of thymine, and the amount of cytosine is always equal to the amount of guanine.
So, if the DNA ladder has 45 cytosines, there will be 45 guanines.
Can someone please help me on number 11
Answer:
what is number 11
Explanation:
What impact did the Industrial Revolution have on the
Peppered Moth?
Answer:
the moths turned black
Explanation:
At first these moths were white in colour but due to the impact of industrial resolution during the 1800 when They burned coal and trees which released gases that darkened the sky they gradually turned black due to adaptation
Why are there craters on the surface of the moon?(1 point)
Craters formed when acidic water dissolved the surface of the moon.
Craters developed from deep waterspouts in oceans on the moon.
Craters were created when sinkholes formed after rainstorms on the moon.
Craters resulted when meteoroids crashed into the surface of the moon.
Answer:
Craters resulted when meteoroids crashed into the surface of the moon.
Explanation:
Craters resulted when meteoroids crashed into the surface of the moon. The correct option is D.
What are carters?On many solid planets and moons, craters are the most common surface features.
Craters cover both Mercury and the Moon. Numerous circular holes cover this area of the Moon. Each of these craters was formed when an asteroid or comet collided with the Moon's surface.
A crater is a bowl-shaped depression or hollowed-out area caused by a meteorite impact, volcanic activity, or an explosion. Impact craters are craters formed by a meteorite colliding with the Earth.
Scientists can study a planet's history using impact craters even when the records are buried beneath the surface.
Buried material is ejected during impact, while outward pressure pushes the rock at the crater's edge upward, forming a rim.
Thus, the correct option is D.
For more details regarding carters, visit:
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Briefly explain how the volume in your thoracic cavity changes during inhalation and exhalation. Be sure your answer includes how those changes in volume lead to air moving in and out. Include which gas, oxygen or darbon dioxide regulates respiration rate.
Answer:
Both inhalation and exhalation depend on pressure gradients between the lungs and atmosphere, as well as the muscles in the thoracic cavity.
Explanation:
The thoracic cavity, or chest cavity, always has a slight, negative pressure which aids in keeping the airways of the lungs open. During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity. Due to this increase in volume, the pressure is decreased, based on the principles of Boyle’s Law. This decrease of pressure in the thoracic cavity relative to the environment makes the cavity pressure less than the atmospheric pressure. This pressure gradient between the atmosphere and the thoracic cavity allows air to rush into the lungs; inhalation occurs. The resulting increase in volume is largely attributed to an increase in alveolar space because the bronchioles and bronchi are stiff structures that do not change in size.During this process, the chest wall expands out and away from the lungs. The lungs are elastic; therefore, when air fills the lungs, the elastic recoil within the tissues of the lung exerts pressure back toward the interior of the lungs. These outward and inward forces compete to inflate and deflate the lung with every breath. Upon exhalation, the lungs recoil to force the air out of the lungs. The intercostal muscles relax, returning the chest wall to its original position. During exhalation, the diaphragm also relaxes, moving higher into the thoracic cavity. This increases the pressure within the thoracic cavity relative to the environment. Air rushes out of the lungs due to the pressure gradient between the thoracic cavity and the atmosphere. This movement of air out of the lungs is classified as a passive event since there are no muscles contracting to expel the air.
4. Which of the following is an important characteristic of a scientific theory?
a, proven by more than one scientist
b. unchanged by new evidence
c. accepted by the public
d. supported by much evidence
Which best supports the part of the cell theory which states “the cell is the smallest unit of living things”?
Answer:
because it is the basic unit of life
What All Biomolecules Have in Common Quick Check
(1) All biomolecules are made up of the elements (1 point)
carbon, hydrogen, and oxygen.
(2) Which biomolecule stores genetic information for body cells?(1 point)
nucleic acids.
(3) Fatty acids are the building blocks of (1 point)
lipids
(4) A complex carbohydrate made of many glucose molecules is known as a (1 point
polysaccharide.
(5) What makes amino acids unique from fatty acids and sugars? (1 point)
Amino acids contain nitrogen; fatty acids and sugars do not.
The correct answers to the following questions are as follows:
Biomolecules are made up of carbon, hydrogen and oxygen elementsNucleic acids are the biomolecules that store genetic informationFatty acids are the building blocks of lipidsA polysaccharide is a complex carbohydrate made of many glucose moleculesThe presence of nitrogen element makes amino acids unique from sugars and fatty acidsQUESTION 1:
Biomolecules are molecules that are synthesized from living sources. Biomolecules are four in nature: proteins, carbohydrates, lipids and nucleic acids. Hence, biomolecules are made up of the following elements; CARBON, OXYGEN, HYDROGEN.QUESTION 2:
Among the four biomolecules listed above, NUCLEIC ACIDS, which include DNA and RNA, are responsible for storing the genetic information for cells.QUESTION 3:
All biomolecules are polymers, meaning that they are made up of smaller monomeric units. The monomers of LIPIDS are FATTY ACIDS.QUESTION 4:
Carbohydrates as biomolecules are also polymers. However, a complex carbohydrate made of many glucose molecules (monosaccharide) is known as a POLYSACCHARIDE.QUESTION 5:
Amino acids are monomers of proteins while fatty acids and sugars are monomers of lipids and carbohydrates respectively. Amino acids are morphologically different from fatty acids and sugars because they possess NITROGEN ELEMENT.Learn more: https://brainly.com/question/18334068
They are all correct 9/2/21
The Yellowstone River ecosystem can support 2,300 bald eagles. This is an example of disrupted ecosystem .
Yes.
Explanation:
The Yellowstone river ecosystem is a disrupted ecosystem indeed.
WHAT IS BREEDING DEFINATION
Answer:
Breeding is sexual reproduction that produces offspring, usually animals or plants.
Explanation:
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