Answer: Cell theory explains cell behavior where a law would describe it
Explanation: Theories are used to explain phenomena, while laws just describe what will always happen. Such as the law of thermodynamics that describes what is going on inside a room when heat leaves it.
if 10 cubic centimeters of a liquid has a mass of 70 grams what is its density
Answer:7 gram/cubic centimeter,
Explanation: The question was unable to specify the unit needed for density but the density answer is in [g/cm^3]
What is an advantage of asexual reproduction that is not an advantage of sexual reproduction?
O A. Asexual reproduction produces a great deal of genetic diversity.
O B. Populations of asexual organisms produce viable offspring.
o C. Populations of asexual organisms can increase in number very quickly.
O D. Asexual organisms can evolve new genetic defenses against diseases.
An advantage of asexual reproduction that is not an advantage of sexual reproduction is that: Populations of asexual organisms can increase in number very quickly.
Option C is the correct answer.
What is reproduction?This refers to the process by which living organisms give birth to their young ones. There are two primary forms of reproduction: sexual and asexual reproduction.
What is sexual reproduction? This is the union of the male (Sperm) and female(Ovum) gamete to produce their young one.
What is asexual reproduction?
This is a process in which a single parent is involved in the production of the young one.
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According to the theory of global warming, the average temperature of Earth’s air began rising rapidly when humans first started burning fuels such as oil. Burning these fuels releases carbon dioxide into the air. Scientists have observed that carbon dioxide traps heat from the Sun in Earth’s atmosphere. They have also observed ice melting in some areas.
Which part of the scientific cycle does the graph directly represent?
Answer:
I think experiments.
Explanation:
Answer:
expriments i cant spell but you get the point
Explanation:
How are ions and small polar molecules such as glucose able to move across plasma membranes?
A) osmosis
B) endocytosis
C) using a transport protein
D) through gaps in the phospholipid bilayer
Answer:
Answer is C
Explanation:
Although ions and most polar molecules cannot diffuse across a lipid bilayer, many such molecules (such as glucose) are able to cross cell membranes. These molecules pass across membranes via the action of specific transmembrane proteins, which act as transporters.
Which food contains mostly polysaccharides?
Answer:
Pasta
Explanation:
Answer:
D
Explanation:
Summarizing Activities and Ideas
How did the lab activities help you answer the lesson
question, "How are minerals and rocks classified?" What
did you learn from conducting this lab?
Answer:
it helped me because i learned how to identify different minerals and rocks.
Explanation:
Which cell has capsule cytoplasma and plasma membrane and cell wall and bacteria flagellum
What causes a tornado to form?
Water vapor condenses, giving off energy.
Wind over ocean water forces water vapor upward.
A warm, moist air mass collides with a cold, dry air mass.
Air pressure changes suddenly, causing rapid air movement.
A warm, moist air mass collides with a cold, dry air mass
A warm, moist air mass collides with a cold, dry air mass causes a tornado to form. Thus, the correct option is C.
What causes a tornado?A tornado is a violently rotating column of air which is extending from the base of a thunderstorm down to the ground level. Tornadoes are the disasters which are capable of completely destroying well-made structures, uprooting trees, and the hurling objects through the air such as deadly missiles.
Tornadoes are developed from severe thunderstorms in the warm, moist, unstable air along and ahead of the cold fronts. Such thunderstorms may also generate large hail and damaging winds. When intense springtime storm systems produce large, persistent areas which support tornado development, major outbreaks can occur in the atmosphere.
Therefore, the correct option is C.
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Describe the formation of the universe,starting with the big bang
Answer:
space dust turns into rock
Create a sentence explaining how amino acids form proteins..
Answer:
The amino acids form a polypeptide, another word for protein, when bound together by a sequence of peptide bonds. Depending on the interactions (dashed lines) of its amino acid side chains, the polypeptide will then fold into a particular conformation. ... To its role, its conformation is critical.
Explanation:
An orgnism's role or job in its environment is called its
Answer:
Your answer is going to be a niche.
Explanation:
Answer:
Niche
Explanation:
Each organism plays a particular role in its ecosystem. A niche is a role a species plays in the ecosystem. In other words, a niche is how an organism “makes a living.” A niche will include the organism's role in the flow of energy through the ecosystem.
NEED HELP DUE TODAY PLZ HELP ME I AM STUCK PLZ PLZ PLZ HELP ME!!!!
What structure(s) does this cell use for movement?
Choose 1 answer:
(Choice A)
A
Flagella
(Choice B)
B
Pseudopodia
(Choice C)
C
Cilia
(Choice D)
D
Ribosomes
Answer:
I think flagella but this is a bit complicated.. I am sorry if I am wrong..
Answer:
flagella should be the right answer I guess
A lab group was working and did not turn off their hot plate. They left their beaker on it with water boiling and a thermometer in the beaker. The water evaporated and the thermometer exploded.
a) Explain why it is important to always turn off the hot plate and to be sure it is cool before putting it away.
b) There are two beakers. One was just taken off the hot plate, while the other was sitting on the lab table. Can you tell which one is hot just by looking? Explain.
Answer:
It is always important to turn off the hot plate because objects around it can catch on fire, things could explode if something is left on it, or someone could get injured.
Yes, you can tell if the water is boiling or if there is steam in the beaker/condensation.
Hope that helps and have a great day!
Answer:
my answer for a is its important to turn off the hot plate because it will possibly burn or hurt someone who bumps into it or touch's it
Explanation:
answer for b is that you can tell which ones hot because of the steam coming out of the beaker
What is Facilitated diffusion? How is it different from simple diffusion?
most of the elements in the periodic table are classified as
Answer:
Transition Metals
Explanation:
The majority of elements in the periodic table are classified as metals. The transition metals lie in the center of the table, spanning groups three through 12.
Most of the elements in the periodic table are classified as transition metal.
What types of experiments could be conducted on the elements?
Silver is a shiny metal that conducts electricity very well . It can be molded into thin sheets it means it can spread into a like a sheet and these type of properties is known as malleability.
Potassium is dull and brittle it means that it can't be change into sheet when you try to change in sheet it will break and these properties are called as brittlness and when it is has been dissolved into water, which it does quite easily. Physical properties of matter include color, hardness, malleability, solubility, electrical conductivity, density, melting points and boiling points.
Carbon is an element which is a chemical by nature and it is represented by C and the atomic number of carbon is 6. The atomic mass of carbon is 12.011 u and the carbon contain 2, 4 electrons per shell with the electronegativity of 2.55 .
Therefore, Most of the elements in the periodic table are classified as transition metal.
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how many types of cell ?
Answer:
Hope it helps!!
Explanation:
In humans, there are about 200 different types of cells, and within these cells, there are about 20 different types of structures or organelles.
what are stroks tell me please
Answer:
strokes are blockages of the blood vessels that are in the brain
Matter that has the same composition and properties throughout is called a(n) ____.
Answer:
Explanation:
answer substance
Which of the following distinguishes this bacterial cell from eukaryotes?
DNA in the bacterial cell is always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus.
The bacterial cell is a unicellular organism, and all eukaryotes are multicellular.
Ribosomes are found in the cytoplasm of the bacterial cell, and eukaryotes do not have ribosomes.
The bacterial cell has both a cell membrane and a cell wall, and eukaryotes have only cell membranes.
Answer: DNA in the bacterial cell always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus
Explanation:that’s what I put on the test got 100/100
DNA in the bacterial cell always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus. Thus option A is correct.
what is the structure of DNA ?DNA is the double helical structure, a carrier of genetic material present in a chromosome of nucleus; Bothe prokaryotic and eukaryotic cell contain DNA.
It is made up of nitrogenous base, deoxyribose sugar , and a phosphate group, there are four types of nitrogenous base which has been classified into purine and pyrimidine based on the structure.
Purine refers to adenine (A) and guanine (G) while a pyrimidine, refers to cytosine (C) and thymine (T), purine can pair with pyrimidine by forming different number of hydrogen bond.
DNA is a twisted helical structure form a right-handed helix, here Adenine can pair with Thymine by two hydrogen bond and Guanine can pair with Cytosine by three hydrogen bond.
Thus option A is correct.
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Nitrogen fixation is done by _________.
How will the enzymes in these bacteria most likely change if the temperature is lowered to 45
Answer:
The enzymes will not catalyze reactions as efficiently
got it right on khan
Explanation:
Why do you think there are
usually more organisms at the
bottom of a food chain?
How do most fossils form
So I have an assignment I need to do and I have no idea how to answer these questions, it is due by the end of the day. Even if you don't understand some of these questions(I don't either) please try and post some answers. Thank You so much in advance.
PassiveCellular Transport (high to low concentration)
▪Diffusion –when, why & how does it occur?
▪Osmosis –when, why & how does it occur?
▪Facilitated diffusion –when, why & how does it occur?
Active Cellular Transport (low to high concentration)
▪Active transport –when, why & how does it occur?
▪Endocytosis –when, why & how does it occur? (phagocytosis vs. pinocytosis)
▪Exocytosis –when, why & how does it occur?
Membranes
▪structure & function
▪function of pores & carrier proteins
Answer:
1 - Diffusion is when small, non-polar molecules pass through the cell membrane. It happens so that the cell can get vital nutrients, it is a type of passive transport.
2 - Osmosis is the transport of water through the cell membrane. It is a type of passive transport, the water moves to the side of the cell with less water.
3 - Facilitated diffusion is when protein channels or transports help large polar molecules like glucose that ordinarily couldn't get through the cell membrane pass through the membrane.
4 - Active transport is when a molecule requires energy, ATP, to pass through the cell membrane. An example of this is molecular pumps, the use energy, ATP, to work.
5 - Endocytosis is when a vesicle captures an outside substance for the cell. There are two types of endocytosis, phagocytosis, which is "cell eating" where the cell digests solids, the there's pinocytosis, which is "cell drinking" where the cell digests liquids.
6 - Exocytosis is when a vesicle removes a substance from the cell by combining with the cell membrane and pushing it out.
7 - The Membrane is made out of phospholipids
8 - Carrier proteins help molecules that are large and polar get into the cell.
what happens at s stage
replication of dna i need 20 characters
She planned to observe the flowers for the next five days for an hour at the same time each afternoon. Then she would plot the data in a multiple line graph to compare the number of bees that visited each flower. Which statement best describes the data in this investigation?
The data would be more accurate if she carried out all the observations in one day so weather conditions would be constant.
The data would be more valid if she made the observations daily for two months.
The data she collected is inaccurate because the investigation is not repeatable.
The data she collected cannot be plotted in a line graph because it is qualitative.
B. the data would be more valid if she made the observations daily for two months.
Answer:
B
Explanation:
Why does an increased amount of biodiversity/complexity in an ecosystem allow it to respond better after a disturbance?
Answer:
Higher biodiversity seems to be associated with a better response to disturbance events
Explanation:
Biodiversity means 'the variety of life'. Disturbance processes modify the environment and also affect demographic processes such as growth, recruitment, survivorship, etc., thereby producing changes in biodiversity. In an ecosystem, biodiversity contributes to its sustainability. In this regard, it has been shown that disturbance events are less important in species-rich ecosystems such as tropical wet forests compared to less rich ones (such as dry forests). The communities with higher biodiversity levels are known to be more productive in terms of biomass, and thus they seem to be more stable (and successful) to disturbance events.
Please help confused
Answer:
soil formation would cause a change in the ecosystem
what makes carbohydrates, proteins, and nucleic acids different
Answer:
Explanation:
Carbohydrates consist of single-sugar units called monosaccharides, double-monosaccharide units known as disaccharides and multiple-monosaccharide molecules that make up starches. The predominant purpose of the carbohydrates you eat is to provide fuel to your cells. Disaccharides and starches undergo digestion to reduce them to their individual sugars, and, once absorbed, they travel to the cells and tissues throughout your body to power your physical activities. Proteins consist of 20 different amino acids, mixed and matched to create a vast array of larger molecules that support every process in your body. Digestion of protein results in a pool of single amino acids that your cells incorporate into new proteins as the need arises in your body. These molecules make up muscles and organs, transmit signals between cells, constitute immune molecules, help create the new proteins your tissues require and can serve as a fuel source in a pinch. Your cells contain two types of nucleic acids, ribonucleic acid and deoxyribonucleic acid, or RNA and DNA, respectively. They differ from the other macronutrients in that they are not a source of calories in your diet, and their role is strictly to direct the synthesis of new protein molecules. Made up of units called nucleotides, the nucleic acid DNA contains the genetic blueprint that influences your personal characteristics, while the nucleic acid RNA pulls together amino acids to form new proteins as your cells need them.
Nitrogen is found in nucleic acids in the form of nitrogenous bases, which are components of nucleotides. Carbon, hydrogen, and oxygen make up carbohydrates and lipids.
What are macromolecules?Macromolecules are essentially polymers, which are long chains of molecular subunits known as monomers.
Long polymers are found in carbohydrates, proteins, and nucleic acids. They are classified as macromolecules due to their polymeric nature and large size.
Carbohydrates, nucleic acids, and proteins are frequently found in nature as long polymers.
They are classified as macromolecules due to their long chain building nature and massive size. Macromolecules are large (macro-) molecules formed by the joining of smaller subunits.
Carbohydrates and lipids are made up of only three elements: carbon, hydrogen, and oxygen. Proteins are comprised entirely of the elements carbon, hydrogen, oxygen, as well as nitrogen.
Carbon, hydrogen, oxygen, nitrogen, and phosphorus are all components of nucleic acids like DNA and RNA.
Thus, these are the basic differences between the carbohydrates, proteins and nucleic acids.
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explain why osmosis is important in plant and animal
Answer:
Osmosis is important in plants and animals because it allows for the absorption of water.
Explanation:
