[tex]\large\underline{\bf\red{Diffusion:-}}[/tex]
It is the process of movement of substances from a region of higher concentration to a region of lower concentration .
Hence correct option is [ c ] .
More to know about topic .
Diffusion :-
Water from soil is absorbed by plants by Diffusion.Amoeba exchanges Carbon dioxide & Oxygen by the process of Diffusion.It is a form of passive transport .It does not utilises energy .Which of the following indicates that an endothermic reaction has occurred?
O Heat is released
O water is formed
O Salt is produced
O Temperature decreases
The following indicates that an endothermic reaction has occurred when temperature decreases, which is in the last option as the endothermic reaction needs heat to carry out the reactions.
What is the significance of the endothermic reaction?There are two types of reactions, such as the reaction that requires heat to form the product, the endothermic reaction, while some of the reactions that release heat are called the exothermic reaction, and the exothermic reactions have more energy at the reactant side than the product side. In the case of a endothermic reaction, the product usually has more energy than the reactants, and the change in free energy here is positive.
Hence, the following indicates that an endothermic reaction has occurred when temperature decreases, which is in the last option as the endothermic reaction needs heat to carry out the reactions.
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Which statement describes the movement of water when a cell shrinks and shrivels due to osmosis?
Water went into the cell because the concentration of water inside the cell was lower than the concentration outside the cell.
Water went out of the cell because the concentration of water inside the cell was higher than the concentration outside the cell.
The cell membrane used energy to move water into the cell through passive transport.
The cell membrane used energy to move water out of the cell through passive transport.What area on the Iberian Peninsula maintained independence after the Reconquista?
Answer:
Water went out of the cell because the concentration of water inside the cell was higher than the concentration outside the cell.
Explanation:
Answer:
b
Explanation:
An organism that breaks down organic matter into simpler materials (like carbon dioxide) is called a decomposer. Decomposers absorb nutrients from living things or the organic matter they leave behind. They do not need to kill to get their food. Do your results suggest bears are decomposers? Explain your reasoning.
Answer:
No, bears are consumers
Explanation:
Both decomposers and consumers are heterotrophic organisms, i.e., they cannot produce their own food. There are four different classes of heterotrophic organisms: decomposers, herbivores, carnivores and omnivores. The decomposers are heterotrophic organisms that return nutrients to the soil from the organisms that break down. Moreover, bears are classified as omnivores (consumers) that need to kill to get their food. These animals obtain nutrients and energy from both plant and animal sources.
Answer:
Bears are consumers
Explanation:
Why do scientists try to repeat other scientists’ experiments?
to test if the instruments in their labs are working properly
to practice following the procedures
to try to improve the first scientist’s work
to see if the original results are reproducible
Answer:
d) to see if the orginal results are reproducible.
Most mammal cells divide at a rate of
Mammals have a slow rate of division that is between 12 and 24 hours. These cellular divisions are asynchronous. Zygotic transcription starts at the two-, four-, or eight-cell stage. Cleavage is holoblastic and rotational.
Siphoning of wetlands in Iraq has led to
a. rising sea levels
b. drought
c. an increase in biodiversity
d. them becoming arid desert
Answer:
its D
Explanation:
them becoming arid desert. just took the test and got a 100 :)
Answer:
D because Iraq though the years became a dry sandy desert mostly made up of desert mountains to this day
Explanation:
A isn't right it'll be less of a desert but also less land, the mountains also only makes of a a bit of a quarter or more of the land
B is a possibility but wont explain how it is today nor on it's conditions
C is wrong as it's the opposite of now
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In your own words, explain why an organism would require all four of the main biomolecules. What would occur if any of these biomolecules were missing? Are any of the biomolecules more important than the others? Is there one that we could live without?
Answer:
I like yo cut gggggggggggg
which of the following best describes the trend represented by this graph?
a. Lemming populations increase because of larger snowy owl populations
b. Snowy owl populations increase because of smaller lemming populations
c. Snowy owl populations increases because of larger lemming populations
d. Lemming population decreased because of smaller snowy owl populations
plsss help...
Answer:
Jan 21, 2014 — Could lemming abundance also be a key factor in the snowy owl ... these rodents because the causes of lemming population cycles are still not ... Fox, skua, and snowy owl populations increase as lemming prey increases. ... Researchers predict a trend of increasing snow depth in this region as a result of ...
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How does cognition and biology influence learning?
GREETINGS!
Both Cognition and biology plays role in Conditioning and Learning
Cognitive aspects of learning refer to thinking processes and mental procedures involved in the learning process. Cognitive factors that influence learning range from basic learning processes, such as memorizing facts or information, to higher-level processes, such as understanding, application, analysis and evaluation.
Biological factors also play important role for example Aversion to a particular taste is conditioned only by pairing the taste (a conditioned stimulus) with nausea (an unconditioned stimulus). Generally, taste aversion is developed after ingestion of food that causes nausea, sickness, or vomiting. If taste is paired with other unconditioned stimuli, conditioning doesn’t occur. Another example is Instinctive drift or Instinctual drift. Any behavior is instinctive if it is performed without being based upon prior experience (that is, in the absence of learning), and is therefore an expression of innate biological factors.
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HEELLPPP QUICKKK PLSSSS
10 points
Answer:
a
I THINK SORRY IF WRONG NOT 100% SURE
Explanation:
it is a because the other guy said so
How do the components of sugar molecules combine to form proteins and other larger carbon based molecules
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Answer:
The sugar molecules thus formed contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.
What are stomata and how do they differ in monocots and dicots?
Answer: Monocot and dicot plants contain stomata in their leaves as well as in their stem. ... The main difference between stomata of monocot and dicot plants is that the guard cells of the monocots are dumbbell-shaped whereas the guard cells of dicot plants are bean-shaped.
Explanation:
Pls I need these answers ASAP
Answer:
Okay, from what i understand, you should make a column with the kind of snake, and another one with Mortality percentage from the venom of those snake's bites.
Use the numbers to guide yourself... for example
Kind of Snake I Mortality Percentage
(1)southern United States copperhead I (1) less than 1%
why is a soda exploding/fizzing a physical change?
Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.
Explanation:
if an atom has seven electrons how many are located in the second energy level
Answer:
8 are locacted in the 2nd engery level.
I would really appreciate it if you help me.
Answer: H
Explanation:
Answer: well at least i helped you
Explanation:0
Which process occurs within the mitochondria?
lactic acid fermentation
alcohol fermentation
glycolysis
Krebs cycle
Answer:
Krebs cycle.
It's also known as the citric acid cycle. It releases stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.
The biological process occurs within the mitochondria is: D. Krebs cycle
Cellular respiration refer to series of metabolic reactions typically occuring in all living cells, in order to produce energy in the form of adenosine triphosphate (ATP).
Basically, there are three (3) main stages involved in cellular respiration and these include:
Glycolysis.Krebs cycle.Electron transport chain.Krebs cycle is an aerobic reaction that takes place in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen. Also, the Krebs cycle produces carbon dioxide ([tex]CO_2[/tex]), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.
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A student wants to compare how long a flashlight will continue to shine using different brands of batteries. How can the student make sure that the test is fair?
Answer:
start with unused fresh out of the pack batteries
Answer:
THE TYPE OF FLASHLIGHT USED
Explanation:
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Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)
Group of answer choices:
A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.
B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.
C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.
D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Answer:
By researching, I would think that the answer is D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Explanation:
During precipitation formation, if temperatures are at or below freezing, 0°C (32°F), at cloud level, water in the air freezes into ice crystals, and the crystals stick together to make snow. The snow starts to fall, and if the air column is freezing cold all the way down from the clouds to the ground, the precipitation stays frozen. It simply falls as snow.
Sometimes, however, a temperature inversion occurs. Normally, the temperature decreases with increasing altitude. A temperature inversion is when a layer of warm air intrudes between the ground and the clouds.
Under these conditions, when the falling snow reaches the layer of warm air, it melts. Then it hits the layer of cold air just above Earth’s surface and refreezes. This all happens very fast, and the result is tiny ice pellets called sleet.
Answer:
D - Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Explanation:
Sleet occurs when snowflakes only partially melt when they fall through a shallow layer of warm air. These slushy drops freeze as they descend through a deep layer of freezing air above the surface. They eventually reach the ground as frozen raindrops that bounce on impact.
1. List the 4 basic mechanisms of evolutionary change?
Answer:
natural selectionmutationgenetic driftgene flowMechanisms of evolution correspond to violations of different Hardy-Weinberg assumptions.
Explain the purpose of cellular respiration .where does it take place ?
Answer:
Cellular respiration, it is an aerobic process in which glucose is combined with oxygen and Adenosine di-phosphate (ADP) to produce carbon dioxide, water, and Adenosine tri-phosphate (ATP).
Cellular respiration takes place in double membraned organelle called mitochondrion.
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Directions: Answers must be in essay form. Outline form is not acceptable. Labeled diagrams may be used to supplement discussion, but in no case will a diagram alone suffice. It is important that
you read each question completely before you begin.
Proteins-large complex molecules-are major building blocks of all living organisms. Discuss the following in relation to proteins.
The chemical composition and levels of structure of proteins
Subm
Answer and Explanation:
Protein is one of the most important molecules in our organism, being present in the composition of all elements, in addition to participating in several metabolic processes. This importance creates the need to study this molecule, however, to study it it is necessary to know the composition chemistry and the levels of structure it presents.
The chemical composition of proteins is related to amino acids, since protein is formed by them. In this case, we can say that the proteins have the same composition as the amino acids containing carboxylic acid and different amino groups, which is what determines the name and function of the amino acid.
In addition to chemical composition, the structure levels of proteins are extremely important, as they only function at a specific structural level. As for these levels, proteins can have a primary structure (there are more than two amino acids organized in a linear row), a secondary structure (when the primary structure turns into a helix species), a tertiary structure (formed by a more intense folding of the secondary structure providing the appearance of helices and leaves) and quarternary structure (when several tertiary structures are joined, allowing folding at the three-dimensional level. This is the functional structure of the protein).
Select an ecosystem that is familiar to you and describe the biotic and abiotic factors that exist there?
Answer:
Forest Ecosystem
An ecosystem is composed of two main components: biotic and abiotic factors. Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi, and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks, and water.
Biotic Factors by Type
The most obvious features of any forest ecosystem are its trees, the dominant biotic feature. They dominate the ecosystem: both in terms of visibility and in terms of biomass. However, they are only one type of organism living in a forest. Other biotic factors include:
shrubs , flowering plants , ferns , mosses , lichens , fungi , mammals , birds , reptiles , insects , worms , microbes
Abiotic Factors by Type
The most important abiotic feature of a forest ecosystem may not be obvious, despite its ubiquity and importance: sunlight. Tangible abiotic factors include soil, minerals, rocks, and water. But abiotic factors can be intangible, such as temperature, other types of radiation, and the chemistry of soil and water.
Biotic Factors by Function
Ecologists frequently group an ecosystem's factors by what role they play in the system, rather than by what particular species they are. This is known as a functional classification.
These functions relate to the movement of energy through an ecosystem, and trees — along with other photosynthetic plants — are the chief primary producers. This means that trees convert the sun's energy into food energy, which is then used by other members of the ecosystem.
These other members of the ecosystem can also be categorized. Primary consumers are, for example, herbivores that eat the primary producers. Secondary consumers are the carnivores and omnivores that eat the primary producers. Decomposers are the scavengers, microbes, and fungi that consume the droppings and the carcasses of other organisms.
Abiotic Factors by Function
The abiotic factors of a forest fall less obviously into functional classifications, but keep in mind that the energy transferred among the various biotic categories is itself a foundational abiotic element. This energy occurs in the form of solar radiation, which includes both visible light and heat (infrared).
Primary producers (plants like trees and shrubs) convert the light into carbohydrates, a form of energy that can be consumed by other organisms. The function of other abiotic factors relies on the minerals they contain, such as the nitrogen in the soil or the hydrogen in water molecules.
An ecosystem consist of various biotic and abiotic factors which interact with each other. A grassland ecosystem is a terrestrial ecosystem which have grass as the main producers (dominant) living thing.
What is a Grassland Ecosystem?
A grassland ecosystem is a type of terrestrial ecosystem in which grasses and the herbaceous plants are the dominant species. Grass controls the grassland ecosystems as they are the main producers of the ecosystem with few or no trees where there is not favorable conditions for a forest. It is more like a dry and desert ecosystem. Therefore, it is also called as a transitional landscape.
The four important abiotic components of grassland ecosystem includes climate, parent material and soil, topography, and natural disturbances. Climate includes the rainfall pattern, temperature and wind patterns of a particular area.
Biotic Factors in the Grassland ecosystem include Plants, Insects (Invertebrates), Grazers, and Predators.
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What factors affect gravitational force?
Answer:
[tex]mass \\ weight \\ presence \: of \: other \: field \: forces[/tex]
Provide evidence to support the claim that viruses fall on the border between living and nonliving.
Answer:
Just like living organisms, viruses use genetic material such as DNA or RNA, but unlike living things, they cannot reproduce using mitosis, binary fission or meiosis. Instead, they simply insert the genetic material into a living cell and then replicate their genetic material along with the cell's in order to create more viruses.
C) Explain the difference in how the plant and the woman get glucose molecules to use for energy
Answer:
Ok:
Explanation:
The woman eats and digests food to get glucose while the plant can undergo photosynthesis which forms glucose.
The plant and the woman utilize different mechanisms for accumulating glucose in their body to use for energy.
What is Glucose?Glucose may be defined as the main type of sugar in the blood which provides immediate energy to the body's tissues to perform metabolic activities.
Plants utilize the process of photosynthesis to construct their food
(glucose) with the help of carbon dioxide and water in the presence of sunlight, while the woman eats food products which are then digested into the stomach, and glucose is synthesized which is then transported into the bloodstream.
Therefore, it is well described above.
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Write five general properties of minerals
Answer:
Color, luster, streak, hardness, and cleavage
Explanation:
EXTRA PTS* Liquids and gases both do not have a definite ______
Answer:
shape
Explanation:
gases and liquids have very spread out particles and contain no particular shape. instead, they take the shape of whatever contains them. on the other side, a solid has a particular shape as the molecules are close together.
Describe the levels of protein folding- primary, secondary, tertiary & quaternary structure of proteins.
simplified pls
Answer:
The
different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain. ... The exact order of the amino acids in a specific protein is the primary sequence for that protein.