why grapes swell when placed in water
When grapes are soaked in water, the grapes then swell up because grape's cells have a high concentration of solutes in comparison to the water. In other words, grapes have low concentration of solvent (that is water molecules ) in comparison to the concentration of solvent in water. In this situation, there will happen a process known as osmosis in which water molecules moves from a region of concentration of water to a region of low concentration of water through a semipermeable membrane. (the cell membrane of the grape's cell is also semipermeable,which only allows solvent molecules to pass through it)
Which of the following is NOT a part of cell theory a.All living things are made of one or more cells. b.All cells are Eukaryotic cells. c.Cells are the basic unit of life. d.Cells come from pre-existing cells.
Option b. "All cells are Eukaryotic cells" is not a part of cell theory.
Cell theory refers to the belief that all living things are made up of one or more cells that unite to form the whole body/structure/organism.
It is universally known that cells are the smallest unit of living things. Without them, there can be no structure or organism made or formed. Cell theory provides the basic description of the properties of cells. And this cell theory was developed by three major scientists- Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. The trio believed that cells, being the alpha of human life, are an important element of living things. They then came upon three basic points that they term "cell theory", which states that all living things are made of one or more cells. They also stated that cells are the basic unit of life and that they come from pre-existing cells. And that cells can be either one of the two- Eukaryotic or Prokaryotic cells. The statement that all cells are Eukaryotic in nature is false because Eukaryotes are cells with a clearly defined nucleus. This means that larger organisms like animals, plants, and fungi are Eukaryotes whereas smaller ones like bacteria and Archaea do not have a membrane-bound nucleus, making them Prokaryotes.While it is understood that cells are the basic unit for living beings, there are certain points that make them important. But one statement that is wrong about the cell theory is that all cells are Eukaryotic cells. Thus, option b is the correct answer.
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Answer:
B
Explanation:
Describe an approach for understanding global systems and the changes they undergo.
What does a viral particle use from the host cell to enter the cell?
Cell receptor
Mitochondria
Nucleoid region
Capsin
Answer:
Cell receptor is the answer
Answer:
cell receptor
Explanation:
The viral particle uses something called a cell receptor on the outside of the cell to enter the cell and begin replicating. This cell receptor can vary between cells, but it's often associated with a glycoprotein.
all activities are controlled by a;mitochondrion b;starch c;cellulose d;proteins
b. What are two examples that can be found inside a cell?
Answer:
Nucleus and chorlophlast
Explanation:
Answer:
endoplasmic reticulum
golgi apparatis
Explanation:
Pillbugs are placed in a container where they have a choice of wet or a dry environment. Researchers record how much time was spent on each side ?
The given question is incomplete, however, the question missing part is as follows,
What is the INDEPENDENT variable?
Answer:
The correct answer would be : wet or dry environment.
Explanation:
Independent variable is a variable that can be changed or manipulated by the researcher or student in order to carryout study on the response on dependent variable.
In this case or experiment, researcher can make environment of the container wet or dry, however it is depend on pilbugs to go which type of environment or side and stay for what time.
Thus, the independent variable would be wet or dry container.
why aren't all the cells in our body totipotent our entire lives
Answer:
somatic cells have highly specific functions
Explanation:
In our body, the major part of cells is irreversibly differentiated into somatic cells. From a cellular point of view, this process of differentiation seems to be an evolutionary disadvantage. However, cellular differentiation is a process aimed at exploiting the genetic variation in order to obtain a highly specialized cell type that is capable of carrying out a specific cellular function. For example, keratinocytes are highly specialized epithelial cells that function by separating the organism from the surrounding environment.
8.Four students attempted to classify organisms into the plant and Animal kingdoms.
Their classifications are shown in the table below.
Plants
Animals
Student 1
Eukaryotic Cells
Prokaryotic Cells
Student 2
Multicellular
Unicellular
Student 3
have Cell Walls
do not have Cell Walls |
Student 4
Heterotrophic by absorption
Heterotrophic by ingestion
Which student's classification correctly separates organisms into these two kingdoms?
A. Student 1
B. Student 2
C. Student 3
D. Student 4
The classification made by student 3 correctly separated the organisms into Plant and Animal Kingdom on the basis of presence of cell wall. Thus, the correct option is C.
What is the difference between Plant cell and Animal Cell?The living organisms are classified into five major Kingdoms, from which the most complex and advance organisms belongs to the Plant and Animal Kingdom.
Plant Kingdom consist of all the organisms which show the presence of a cell wall, autotrophic mode of nutrition, and immobile in nature. Whereas, the animal kingdom consist of all the organisms which show the absence of a cell wall, heterotrophic mode of nutrition, and are mostly mobile and capture the food on their own.
The main difference between Plants and Animals is the cell wall, plant cells have an outermost cell wall in their cell which is absent in animal cell.
Therefore, the correct option is C.
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Milk snakes are a species of nonpoisonous snakes that inhabit a wide geographical range throughout North America. They can be gray, tan, red, orange, or black with or without bands of yellow, black, or white. Biologists have proposed that brightly colored milk snakes are adapted to regions where similarly colored poisonous snakes live because the color wards off potential predators. This is a(n) _______ explanation.
Answer:
proximate explanation
Explanation:
In biology, a proximate explanation refers to an event that is directly responsible for producing a specific result. A proximate explanation allows to explain a particular biological phenomenon immediately associated with physiological factors. In sociology, a proximate explanation enables understanding of human behavior by their more immediate factors. On the other hand, an ultimate explanation is believed to be the real cause of the observed results.
what is deforestation
Answer:
Deforestation is the process of clearing out trees for industrial/agricultural purpose
Explanation:
Deforestation can cause in global warming and the reduction of ozone in the ozone causing a threat to global life
What is the best definition of the term imagery?A student completed a lab report. Which correctly describes the difference between the “Question” and “Hypothesis” sections of her report?
Answer: visual symbolization and A question is when you ask something and the hypothesis is your guess answer to the question
Explanation: hope this help
Differentiate between subsistence farming and commercial farming .
only 2 points:)
Answer:
Difference between subsistence farming and commercial farming
Explanation:
Subsistence farming is done basically to feed the farmers family itself. It has little or no profit.
Commercial farming is done with the intent of profit, where cash crops are sown.
Which enzyme is active over the largest temperature range
Answer: Slurp Daddy
Explanation: I had the test
Which type of substance will react exothermically with oxygen?
4. Compare your observations of micrographs obtained from the optical microscope, the scanning electron microscope, and the transmission electron microscope.
Answer:
optical microscope uses visible light and a lense to generate magnify images of small object
scanning electron microscope produces image of a sample by scanning with a focused beam if electron while transmission electron microscope is in which beam of electrons is transmitted through a specimen to form of image
Why is the control group important?
Answer:
You would compare the results from the experimental group with the results of the control group to see what happens when you change the variable you want to examine. A control group is an essential part of an experiment because it allows you to eliminate and isolate these variables.
Explanation:
*Hope this helps*
what color is an orange
Answer:
orange
Explanation:
how does a large, complex system like the Earth system operate
Explanation:
Scientists increasingly view earth as a dynamic system. A combination of interrelated interdependent or interacting parts forming a collective whole or entity
What categories of living things are on land?
Answer:
Animals,plants, fungi, microorganisms
Answer:animals,plants,fungi,microoganisms
Explanation:
Organisms that breath make as their final waste product. Even fire creates vapor as a final waste product
Answer:
Carbondioxide, water and urea are the waste product.
Explanation:
The final waste product produced by the organisms during respiration are carbondioxide and water while urea and nitrogenous waste are also a waste product produced in the body when the digestion of food is completed. The unnecessary substances present in the food are removed and sent it to excretory organ. These waste products are removed from lungs and urinary bladder.
Create an analogy for the following: An atom is to a molecule as _____ is to ____________.
Answer:
neutron is to nucleus
Explanation:
i dont know what exactly ur working on but this would be my answer.
hope this helped! sorry if it didnt.
Describe structural changes that can occur to a protein after translation to make it function properly
Answer:
See explanation
Explanation:
Many changes can occur. Some post-translational modifications can include aggregation of polypetide subunits (chains) into larger, functional proteins. Additionally, phosphorylation and methylation may occur.
Which rhinoceros species is best adapted for feeding in the large open grasslands of Africa's Serengeti ecosystem?
Answer:
White Rhinoceros :)
Explanation:
Answer:
White Rino's
Explanation:i just know
How do you know if something is living. .
Answer:
Heartbeat or cells
Explanation:
If it's an animal or human it should have a heart beat if it's actually alive. Although both plants and animals (including humans) are living, because they both have cells.
PLEASE HELP ASAP
Which causes an increase in greenhouse gases?
A: change in wind patterns
B: strengthening of hurricanes
C: burning of wood and coal
D: movement of warm ocean waters
Answer:
The correct answer would be C, burning of wood and coal
Explanation:
The burning of fossil fuels (coal, oil, natural gases) increases the greenhouse gases in the atmosphere.
The factors that will cause an increase in greenhouse gases is the burning of wood and coal.
What are greenhouse gases?Greenhouse gases are gases such as carbon dioxide or CFCs, that contributes to the greenhouse effect when released into the atmosphere.
Greenhouse gases have the ability to trap and release heat in their chemical bonds.
Examples of greenhouse gases are;
Carbon dioxideChlorofluorocarbons (CFC)Sulfur dioxideTherefore, the factors that will cause an increase in greenhouse gases is the burning of wood and coal.
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Kudzu is a vine that was brought to the us from japan to prevent erosion once here kuduz became invasvie what role does kuduz most likely play in the environment in the us
Answer:
Kudzu in the United States has become an environmental concern.
It is naturally coded to spread quickly. The advantage to that is that it was useful in the prevention of erosion and management of the landscape.
Presently, it is creating an ecological imbalance. Kudzu is very efficient at collecting and converting sunlight more than the local plant species and even tree plants. The competition from Kudzu is so tough, tree plants are being starved off of soil nutrients and sunlight and are unable to survive.
Even the wildlife are affected as the crops which they forage on cannot are outcompeted by Kudzu.
Cheers!
Which approach to ecological investigations is illustrated by Biosphere 2? Defend your classification.
Answer:
The correct answer is : Biosphere 2 is a model based on the creation of a miniature ecosystem with life support systems.
Explanation:
Biosphere 2 is a small model of the biosphere, which is planned by scientists and engineers, that is closed and isolated from the outside world. In this study or research, the strategy for modeling is utilized to show the performance and conduct or behavior of a real biosphere.
Researchers made a model or an artificial situation that can uphold living things. It has a scaled-down model of a tropical forest, a grassland, a sea with a coral reef, a desert, and a mangrove biosphere. In these conditions, a wide range of animal varieties was contained. Furthermore, a group of eight individuals additionally fixed themselves inside it.
A sugar not commonly found free in nature that combines with glucose to form the disaccharide lactose is ________.
what is another word for "living thing"
Answer: Alive
Since the word living means alive, another word for living thing would be alive.
Definition of Living: To be alive; to have life.
So this means another word for living thing would be alive.