Answer:
this is true (:
Explanation:
Answer:
true
Explanation:
The transport of specific particles down their concentration gradient through a membrane by carrier proteins is known as facilitated diffusion. ... Facilitated diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentration gradient.
Which of the following statements is true?
A.)All plants can make their own food.
B.)Photosynthesis only happens in plant leaves.
C.)Photosynthesis needs light energy to happen.
D.)All of the above.
Answer:
D.
Explanation:
QUICKKKK ILL MARK BRANLIEST!!!!
ILL MARK BRANLIEST!!!
Which statement explains why hydrogen bonds are able to form between water molecules?
Water molecules are polar.
Water molecule atoms have weak atomic bonds..
Water molecules show adhesion.
Water molecules are large.
Answer:
Water molecules are polar.
Explanation:
Hydrogen Bonds - Opposite charges attract one another. The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond.
This bond is very weak. Hydrogen bonds are formed easily when two water molecules come close together, but are easily broken when the water molecules move apart again. They are only a small fraction of the strength of a covalent bond, but, there are a lot of them
The fact that water molecules are POLAR makes it possible for hydrogen bonds to form between them.
HOW IS WATER POLAR?
Water is a chemical compound made up of two hydrogen atoms and one oxygen atom i.e. H2O. The hydrogen atoms are electropositive while the oxygen atom is electronegative. The electronegativity of the oxygen atom allows the positive hydrogen ions to be attracted towards it. This makes water molecules polar. Hydrogen bonds form when hydrogen ions (H+) are attracted to an electronegative ion like 02-, S2- etc. Hence, in the interaction of water molecules, the hydrogen ion of one water molecule gets attracted to the oxygen ion of another water molecule, hence, forming HYDROGEN BOND.In a nutshell, hydrogen bonding is possible in water due to its polariry.
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Pls help due soon: Why is the moisture of cirrus clouds mostly in the solid state?
The moisture of cirrus clouds mostly in the solid state as the higher altitude allows for lower temperatures, leading to frozen water crystals. The correct option is A.
What are cirrus clouds?These clouds indicate that the weather is favorable. They are distinguished by their high altitudes, which reflect the direction of the wind, which moves them and constantly changes their shapes.
The higher they are, the lower the temperatures; son water vapor condenses into crystals, which are blown in different directions by the wind.
Cloud formation occurs when humid air ascends and experiences adiabatic cooling due to the high temperature.
Because the density and pressure of the air decrease as altitude increases, the air tends to expand with elevation in response to the reduced pressure.
Gases in expansion experience adiabatic cooling, losing caloric energy as their molecules move further apart. As the air rises, it becomes colder and thus denser.
Thus, the correct option is A.
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Galileo Galilei discovered that Earth moved around the sun, which was the opposite of what most people believed at the time. What was the response of society's leaders to Galileo's discovery? He was celebrated by society and became a wealthy man. His discovery was ignored by society's leaders. His books were banned and he lived under house arrest. He was asked to change his theory and publish it again.
Answer:
His books were banned and he lived under house arrest.
Explanation:
Answer:
His discovery was ignored by society's leaders. His books were banned and he lived under house arrest. He was asked to change his theory and publish it again. Brainliest please.
Explanation:
. What provides most of the water for the water cycle?
This is the text PLEASE HAS TO BE TURNED IN IN 5 MIN
Answer:
The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor.
Explanation:
What is the complementary DNA sequence for the DNA strand above?
Answer:
The answer is D.
Explanation:
When did people begin to notice that coastlines of continents fit together like puzzle pieces?
when satellites began taking pictures of Earth from space
when Alfred Wegener proposed the idea of continental drift
when early explorers traveled from Europe and Asia to the Americas
when geologists first started examining the fossil record of South America
Answer:
The 1500s
Explanation:
the1500s
As early as the1500s map makers were beginning to notice that the individual continents fit together like pieces of a jigsaw puzzle. It wasn't until 1912 that Alfred Wegener first proposed an acceptable hypothesis (continental drift) as an explanation
Pls help due soon: Why is a low-pressure system generally associated with cloudy and rainy weather?
How many Oxygen atoms are present in this chemical equation: Na2O3?
Answer:
3
Explanation:
You can see how many atoms there are next to the element (O3)
I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP
If a cell was to have it's plasma membrane freeze, why would the cell die?
Which choice has eukaryotic animal cells?
oak
Lactobacillus
virus
liver
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What is the effect is a beam of light hits a green leaf?
When light strikes a green leaf, most of the green spectrum is reflected and most of the other colors are absorbed.
what is light?We can see light as a sort of energy. The sun provides some illumination. The other light is artificial. Man-made light is created by converting another type of energy, such as electricity, into light energy. From a source, light travels in a wavy beam to whatever it encounters. Each hue is represented by a tiny wavy beam on the beam. A light beam travelling through the air that contains all of the hues appears to be clear.
What is reflection?When a light beam strikes an object, such as tree leaves or an apple, the color of the object influences the smaller color beams inside the light beam. All color rays except green are absorbed by the green leaves. Only the green beam is reflected back, thus the leaves appear green to our eyes. Except for red, the apple absorbs all color beams. Only the red beam is reflected back, thus the apple appears red to human eyes. This is referred to as reflection.
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Rock layers labeled A to J from bottom to top. Layers A, B, and C are not horizontal, and are pushed up toward layer E. Layers E, F, I, and J are horizontal. A fault is labeled G, and runs from layer A to the bottom of layer I. Rock layers to the right of the fault are shifted up and do not include layer F. Layer H is Y-shaped, starting below layer A up to layer E, on the right side of the fault. Arrows point to unconformities at the bottom of layer E on both sides of the fault, and the top of layer E on the right side of the fault. Use the drop-down menus to answer the questions about the diagram. Letter H is a(n) . Which of these is youngest? Which of these was eroded? Which happened first?
Answer:
1,3,2,3
Explanation:
Answer:
Letter H is a(n) intrusion.
Which of these is youngest? Letter G
Which of these was eroded? Letter C
Which happened first? Letter F was deposited.
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I just did the review for it and these are the answers. The person above is correct, but if you want what the answer is in wording and not numbers, then this answer would be suited for you.
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Have a great day and God bless! :)
i have posted this 3 times can some one plz help?
help I don't understand
Answer:
srry i dont understand it to but
i know you can do it
Answer:
Measure all of the grass heights. Then add them all togehter and divide by how many there are (in this case 10) Then the number you get should be your answer.
1.) The scientific name always consists of two words:
Group of answer choices
Genus and species
Family and species
Species and kindom
Domain and species
2.) Puma concolor is the scientific name for an American Mountain Lion, what is the species?
Group of answer choices
Puma
concolor
mountain lion
American mountain Lion
Someone pleas help :(
Plz Plz help me with this its due today so plz help out!!!
Answer:
1.lysosome
2.cell membrane
3.ribosome
4.nucleus
5.golgi body
6.vacuole
7.mitochondrion
8.endoplasmic reticulum
Answer: Use this as a reference sheet for all of your biology assignments!
Explanation:
What is a triglyceride? (Site 2)
Answer:
in explanation
Explanation:
an ester formed from glycerol and three fatty acid groups. Triglycerides are the main constituents of natural fats and oils, and high concentrations in the blood indicate an elevated risk of stroke.
Answer:
It is a type of fat found in your blood ;)
Explanation:
What happened as the mass of the sun increased during the formation of the solar system?
Answer:
The Sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust called a solar nebula about 4.5 billion years ago. Most of the material was pulled toward the center to form our Sun, which accounts for 99.8% of the mass of the entire solar system.
Explanation:
Hope this helps!! i am trying to be brainliest
The increase in gravitational pull, which caused the surrounding gas and dust to be pulled towards the center of the developing solar system.
What is the Solar system?As the mass of the sun increased during the formation of the solar system, several important changes occurred. One of the most significant changes was the increase in gravitational pull, which caused the surrounding gas and dust to be pulled towards the center of the developing solar system. As a result, the temperature and pressure at the center increased, eventually reaching a point where nuclear fusion began and the sun became a star.
The increase in mass also had an impact on the orbits of the planets. As the gravitational force of the sun increased, it caused the orbits of the planets to become more stable and circular, rather than elliptical or irregular. This stability allowed the planets to maintain their orbits over billions of years, contributing to the long-term stability of the solar system.
In addition, the increase in mass allowed the sun to retain more of the lighter elements, such as hydrogen and helium, which were abundant in the early solar system. This abundance of lighter elements contributed to the formation of the gas giant planets, such as Jupiter and Saturn, which have massive hydrogen and helium atmospheres.
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Plz help i will give brainliest. Thank you to however helps and its 30 points
Both species benefit in the type of symbiosis called parasitism. Please select the best answer from the choices provided T F
The statement “both species benefit in the type of symbiosis called parasitism” is false.
Parasitism is a type of symbiosis where one organism is harmed while the other benefits.
An example of parasitism is a dog infested with ticks.
The ticks benefit from drinking the dog’s blood, harming the dog in the process.
Do particles in a solid have thermal energy?
Answer:
Yes, but a very low amount because they can only vibrate in place.
Explanation:
A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -use the sunlight to make their own food.travel with other members of their species.are made up of one or more cells.have a skeleton which allows them to move.
Answer: C. Are made up of one or more cells
Explanation: Good luck! :D
A chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.
What is the significance of the animals and plants?The significance of animals and plants is that both have unique characteristics and equal importance in nature, such as the plants' ability to produce food through the process of photosynthesis and the animals' ability to keep the system clean, such as when some animals help in plant fertilization, maintain the carbon and oxygen cycles, and so on.
Hence, a chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.
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Unequal heating of the earth by the sun and the earth's rotation cause what?
Group of answer choices
A all answers are correct
B wind belts
C tropical easterlies
D polar easterlies
Answer:
A) all answers are correct
Explanation:
Wind belts, tropical easterlies , and polar easterlies are all examples of unequal heating of the earth by the sun and the earth's rotation, because they distribute heat or cold unevenly based on the sun heat and the earth's rotation.
It will be A I think
What is the element name for 3.3%
Answer:
Nitrogen
Explanation: