Based on selective permeability, if the pores in the dialysis tubing were too small to allow iodine potassium to pass through, the liquid in the tubing would not turn black.
What is Selective permeabilitySelective permeability refers to the ability of a membrane to allow some molecules to pass through it but no others.
In the dialysis tubing, selective permeability is used to remove some substances but not others.
The selective permeability of the dialysis tubing depends on the pore size.
When a dialysis tubing containing starch solution was dipped into a beaker containing iodine, the solution in the tubing turned black due to the ability of iodine molecules to pass through the membrane.
However, if the pores in the dialysis tubing were too small to allow iodine potassium to pass through, the liquid in the tubing would not turn black.
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Why is the brain the control center of your body?
Explanation:
the brain is an important part of the body it controls messages sent through your body and also it is the center for decision making emotions personality and thoughts
The environment selecting an animal is called evolution by?
2
What evidence did Alfred Wegener use to support his
theory of continental drift?
A
Fossll discoveries
B
The Himalaya Mountains
С
Ancient maps of the world
D
Charts of selsmic activity
Answer:
A) Fossil discoveries, mostly of animals who couldn't swim, helped prove continental drift
Which of the following tests would you use to test for the presence of aspartame: monosaccharides, lipids, starch, and protein. Why?
When a surface is impervious, it does not allow the water to percolate into the soil and into the groundwater. The water then is considered to be _____ water.
A. infiltrating
B. heavy
C. runoff
Answer: is C runoff
Explanation:
what is a phosphodiester linkage?
-please explain this not as complicated as the internet
Answer:
where two of hdroxyle groups in phosphoric acid react with hydroxyl groups
What is the energy for photosynthes?
Answer:
Energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar)
Explanation:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Photosynthesis is the process by which plants convert solar energy into chemical energy. In the presence of visible light, carbon dioxide (CO2) and water (H20) are transformed into glucose and O2 during a complex series of chemical reactions.
For More Information:
https://www.britannica.com/science/photosynthesis
Write a 500-word research report on a pathogenic bacterium that is not discussed in this unit (you may choose one from the table in the pathogenic bacteria section of the Eubacteria lesson). Include the history, the scientific name of the bacterium, vectors, symptoms, etc.
The pathogenic bacterium Staphylococcus aureus corresponds to a bacterium of the group of gram-positive cocci, and is part of the human microbiota.
Characteristics of the bacteriumStaphylococcus produce toxins which are proteins produced and exposed to the surface of the bacteria that can destroy human cells and can spread through contact with the infected host.
Some symptoms of infection are the production of red nodules, boils and pimples, which are usually infected with the presence of pus, and are treated with antibiotics.
This bacterium can cause several diseases, such as the simplest infections present in boils, as well as serious diseases with high mortality, such as endocarditis, pneumonia, meningitis and septicemia.
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What does something like C9B, G4A tell you about the subunits, their relationship to each other, location in the molecule, or about the molecule in general
Despite not having access to the subunits mentioned, we can confirm that subunits of a molecule interact with one another through molecular forces that help to shape the molecule as a whole.
What are these forces?The subunits of molecules each have their own individual structures as well. They are held together by hydrogen bonds as well as van der Waals forces between chains, which are the most important in terms of their effect on molecular geometry.
Therefore, we can confirm that subunits of a molecule interact with one another through molecular forces that help to shape the molecule as a whole.
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Water Vapor in the atmosphere ___________ to form clouds.
Answer:
The answer is condensation
Explanation:
Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is very important for the water cycle because it is responsible for the formation of clouds.
Hope this helps mark brainliest please :)
plez help me .give the answe
Answer:
Sorry for the delay, they are so many questions and it took me a while
Which are examples of the new mass society that emerged in the late 1800s?
O restaurants and grocery stores
O television and movies
O automobiles and motorcycles
O vaudeville and professional sports teams
list two organelles present in a plant cells put absent in an animal cell
Answer:
cell wall, chloroplasts and other specialized plastids, and a large central vacuole
Explanation:
Blood type in humans contains multiple alleles.
A male with type A blood and the genotype AO mates with a female with type B blood and the genotype BO. What are the possible blood types of their offspring?
Group of answer choices
A
All of these
O
B
The possible blood types of their offspring can be A, B, AB, or O. The correct option is B.
What are alleles?At a specific genomic region, an allele is one of two or more variations of the DNA sequence (a single base or a segment of nucleotides).
For each genomic region with such variation, an individual inherits two alleles, one from each parent. The person is homozygous for the allele if the two alleles are the same.
One allele (or variant) of the ABO blood type gene is passed down from each parent to their kids. A and O are potential alleles for the father, while B and O are potential alleles for the mother.
Their progeny may have the blood types AB, A, B, or O, with a 25% likelihood of each blood type.
Thus, the correct option is B.
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Your question seems incomplete, the probable complete question is:
Blood type in humans contains multiple alleles.
A male with type A blood and the genotype AO mates with a female with type B blood and the genotype BO. What are the possible blood types of their offspring?
Group of answer choices:
A. A from the male
B. All of these
C. O is always there
D. B from the female
The term teratogen refers to __________. Group of answer choices a limited time span during which a part of the body is biologically prepared to develop rapidly a synthetic hormone used to prevent miscarriage a rapid period of prenatal neurological development any environmental agent that causes damage during the prenatal period
The teratogen is any environmental agent capable of diverting development towards alteration during prenatal development.
What is teratogenic?They are those physical, chemical or biological agents, which by inducing some irregularity are usually the cause of congenital defects during normal embryonic and fetal development.The period of greatest danger is that of organogenesis, which includes the fourth to the ninth week of pregnancy.Therefore, we can conclude that an agent is teratogenic when it causes structural or functional alterations during prenatal period.
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what is the meaning of skeleton system
Answer:
■ What is the meaning of skeleton system
➢The skeletal system is your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It's also called the musculoskeletal system.
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Brefly explain Endogenous antigen & examples & autoantigen
Exogenous antigens refer to the antigens that enter the body of the organism from the outside while endogenous antigens refer to the antigens produced from within the cell as a part of normal cell metabolism or when the cell is infected by bacteria or viruses.
Examples
viral proteins produced during viral replication;
proteins produced by intracellular bacteria such as Rickettsias and Chlamydias during their replication;
proteins that have escaped into the cytosol from the phagosome of phagocytes such as antigen-presenting cells;
The principal source of air pollution from volcanoes is
Answer:
locally sulfur dioxide gas
Explanation:
these gases can come from Lava flows as well as a volcano that erupts violently
Answer: Ash
Explanation:
took on ed
Lyme disease is spread to humans through tick bites. A tick becomes infected after it has bitten a deer carrying a pathogen.
Which statement supports a year where there is an increase in Lyme disease?
Answer options with 5 options
A.
Due to an increase in food supply, there is an increase in the deer population.
B.
Due to a decrease in food supply, there is a decrease in the deer population.
C.
Due to an increase in food supply, there is a decrease in the deer population.
D.
Due to a decrease in food supply, there is an increase in the deer population.
E.
Due to a decrease in deer population, there is an increase in the tick population.
Answer:
A. Due to an increase in food supply, there is an increase in the deer population.
Explanation:
An increase in deer population means an increase in chance of deer being infected, a higher chance that a deer is infected means a higher chance of a tick being infected, since there are more deer, there are more ticks, the more infected ticks, the more infected with Lyme Disease.
If a highly concentrated salt solution is on one side of a membrane, and a lower concentrated salt solution is on the other side, water molecules will move__________.
Answer:
until the membrane breaks down
Explanation:
got it right
The water molecule will move from lower salt concentration to higher salt concentration.
What is osmosis?The spontaneous net movement or diffusion of solvent molecules through a selectively permeable membrane from a region of high water potential to a region of low water potential, in the direction that tends to equalize the solute concentrations on the two sides, is referred to as osmosis.
Both diffusion and osmosis aim to equalize forces within cells and organisms as a whole, spreading water, nutrients, and necessary chemicals from high concentration areas to low concentration areas.
Osmosis occurs in both the small and large intestines, with the large intestine having the most osmosis.
Food travels from the esophagus to the stomach and then to the small intestine as it is processed by your body. While there, your body absorbs essential nutrients through osmosis.
Thus, as the solution having high salt will have less water so as per the tendency of water, it will move from higher water concentration (i.e., low salt concentration) to lower water concentration.
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Compare deciduous and evergreen trees by writing each of the
characteristics and examples below in the correct location on
the Venn diagram. You will use each of them once.
• example: pine tree
• example: oak tree
• loses leaves for winter
• thin, needle-like leaves
• has cones
1)
• defines the types of
life in a forest
• adapted to cold climate
• adapted to mild climate
• broad, flat leave
The deciduous and evergreen trees are both types of plant that defines the characteristics of a forest. Using an attached Venn diagram, the deciduous and evergreen trees are compared.
Comparison of deciduous and evergreen plantsIn the rainforests, there are many types of tress which include deciduous and evergreen trees.
Deciduous trees are those trees that shed their leaves once or twice a year. They have the following characteristics:
loses leaves for winterbroad, flat leaveexample: oak treeThe evergreen trees are those tress that do not shed their leaves but remains green and functional through more than one growing period. Their characteristics include:
thin, needle-like leaveshas conesexample: pine treeThe similarities between the deciduous and evergreen trees are:
defines the types of life in a forest.adapted to cold climateadapted to mild climateLearn more about deciduous plants here:
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What does membrane mean when referring to a cell?
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
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Which of the following are ALL
characteristics of DNA?
1. DNA stands for Deoxyribonucleic Acid; Has a
Sugar called Ribose; Is Single-Stranded; Has
four bases A-->T and C-->G
2. DNA stands for Ribonucleic Acid; Has a Sugar
called Deoxyribose; Is Double-Helix or Double-
Stranded: Has four bases A--> T and C-->G
3. DNA stands for Ribonucleic Acid; Has a Sugar
called Ribose; Is Single-Stranded; Has four
bases A-->T and C-->G
4. DNA stands for Deoxyribonucleic Acid: Has a
Sugar called Deoxyribose; Is Double-Helix or
Double-Stranded: Has four bases A-->T and
C-->G
How does Gjerde describe the “high seas”?
Gjerde describe high seas as water bodies that covers 50 percent of the planet having an average depth of the oceans of 4,000 meters. It give about 90 percent of the habitat for life on Earth.
What is High seas?High seas refer to very large oceans or salt water bodies that is beyond a country's jurisdiction or beyond a territorial dormain. But it refers to the entire Earth's ocean bodies.
Therefore, Gjerde describe high seas as water bodies that covers 50 percent of the planet having an average depth of the oceans of 4,000 meters. It give about 90 percent of the habitat for life on Earth.
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Both Travel at the same constant speed
Which part of a green plant loses the most chloropasts at the end of the summer?
Answer:
Leaves lose the most chloroplasts at the end of summer.
Explanation:
No explanation today!
How does the humanistic approach view the role of the self and free choice in
shaping behavior?
What is the energy from the Sun used SPECIFICALLY for in Photosynthesis?
Define homeostasis and its adaptive advantage.
5. The reactants and products for respiration are exactly the
same for a plant cell and an animal cell, the difference is
the _______
of the reactants.
Answer:
Source
Explanation:
Respiration, which occurs in all living organisms, is the metabolic process by which organisms obtain energy (ATP) via the breakdown of their food substances.
The process of respiration in plant and animal cells is similar in the sense that reactants and products for respiration are exactly the same for both cells. The reaction is as follows:
C6H12O6 (glucose) + 6O2 = 6CO2 + 6H2O
The difference between this process in plant and animal cells is the SOURCE of the glucose or food molecule that is broken down. Plants get their food from PHOTOSYNTHESIS (autotroph) while animals get theirs by feeding on other organisms (heterotroph).
The reactants and products for respiration are exactly the same for a plant cell and an animal cell, the difference is the source of the reactants.
What are respiration?Through the process of cellular respiration, organisms mix oxygen with food molecules, directing the chemical energy contained in these substances toward life-sustaining processes while excreting carbon dioxide and water as waste.
Foods are broken down by organisms that do not require oxygen in a process known as fermentation. (For more in-depth discussions of various cellular respiration topics, see tricarboxylic acid cycle and metabolism.)
Adenosine triphosphate (ATP), an energy-rich compound that absorbs the chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes, is one goal of the degradation of foodstuffs.
Therefore, The reactants and products for respiration are exactly the same for a plant cell and an animal cell, the difference is the source of the reactants.
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