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.
Answers
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:
Related Questions
How do RNA's subcomponents affect its properties? (3 points) A. Adenine and cytosine bond with thymine and guanine, respectively, causing RNA to fold into functional units. B. Base pairing occurs within an RNA molecule to give RNA the three-dimensional shape needed for specific functions. C. Deoxyribose and phosphate interact to provide RNA with a backbone to which nucleotides become bound. D. The nitrogenous bases in RNA molecules undergo dehydration reactions to form large biological polymers.
Answers
Answer:
B. Base pairing occurs within an RNA molecule to give RNA the three-dimensional shape needed for specific functions.
Explanation:
Ribonucleic acid, known as RNA, is a type of nucleic acid found in living systems. In opposition to the other type of nucleic acid (DNA), RNA is a short single stranded molecule. Both DNA and RNA are made of nucleotides, composed of a phosphate group, nitrogenous bases and a pentose sugar.
The presence of ribose sugar and Uracil base in RNA instead of deoxyribose sugar and thymine base respectively structurally differentiates the molecule from DNA. However, base pairing occurs within the RNA molecule to form the three-dimensional shape of the RNA, which is key to the specificity of its function.
Earth's layers formed because of differences in ______ of the materials.
Answers
Answer:
densities
Explanation:
Earth's layers formed because of differences in densities of the materials.
This means, less dense lighter object will be near the top, and the more dense, thicker and heavier stuff is in the core.
Earth's layers formed because of differences in densities of the materials.
What are Earth's Layer?Earth is made up of four distinct layers, from deepest to shallowest, the inner core, outer core, mantle, and crust. All these layers are formed because of the differences in the densities of the materials.
1. The inner core:
The inner core is composed mostly of iron and nickel. The inner core rotates slightly faster than the rest of the planet, which is also much hotter.
2. The outer core
The outer core is made from iron and nickel which is present in liquid form
3. The mantle
The mantle is made up of of iron, magnesium and silicon which is dense, hot and semi-solid.
4. The Crust
The crust is extremely thin, cold and brittle which is compared to what lies below it that is made of relatively light elements
Thus, Earth's layers formed because of differences in densities of the materials.
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A teacher cut an apple into three wedges of the same size.
She dipped one wedge in lemon juice, dipped another in
water, and left one alone. Then she left the wedges on a
paper towel on her desk. After 1 hour, only the wedge that
had been dipped in lemon juice was still yellow. The other
two wedges had turned brown.
What is the responding variable in this experiment?
Answers
I am not entirely sure what you mean by "responding variable" but I'm going to guess it was the vinegar since it has been used as a perservative for years.
Hope that helps in some way.
explain how migration, selection, and adaptation might account for various groups of animals coming into existence after the flood
Answers
Answer:
As the kinds of animals on Noah's ark were dispersed, the great variability designed into their gene pool allowed them to interact with the environment. The evidence shows that the emergence of new varieties and species can occur in some organisms in as little as five to ten generations an observed fact that evolutionists cannot explain.
A tree or plant can live without its bark or epidermis. TRUE OR FALSE
Answers
Answer:
false
Explanation:
Kilogram is the SI base unit for measuring
A. length
B. mass
C. volume
D. tempature
Answers
Answer: The answer is, (B) Mass.
Explanation: Because, The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.
An organism has 3 duplicated chromosomes after the Sphase of the Cell Cycle. How many total sister chromatids does it have?
Answers
An organism has 3 duplicated chromosomes after the S phase of the Cell Cycle, the total sister chromatids have - 6 chromatids.
S-phaseThe number of Chromatids doubles in the Synthesis phase, but the number of chromosomes stays the same. Anaphase doubles the chromosome number but does not affect the chromatid number
The chromosome is different at different times in the cell cycle, depending upon whether the DNA has replicated or not, and when the sister chromatids separate
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which of the following are effects of environmental change on an entire species? A. individual deaths and impacts on growth and development B. impacts on growth and development and losses of habitats C. species competition and individual deaths D. extinction and change in species competition
Answers
Answer:
It is D extincitionn and change in species competition
Explanation:
The following effects of environmental change on an entire species are the extinction and change in species competition.
How do environmental changes affect a species?A significant change in the environment prefers some features of flora , faunna and microbes over others.
These features contrasts each other oftenly genetically based so that prefered features may rise in the next generation.
The more concise the generation time, the more instanteaneous this evolutionary shift can occur.
Thus, option "D" is correct, extinction and change in species competition will effect the environment.
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How do you find the “total magnification of something that you are viewing through a microscope?
Answers
multiply the power of the eyepiece and objective lense Explanation:
Answer:
To figure the total magnification of an image that you are viewing through the microscope is really quite simple. To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece, usually 10X.
Explanation:
*Hope this helped*
PLEASE HELP ME!!! 30 points (also marked Brainlest)
Answers
Answer:
Explanation:
2-They live in burrows that they dig into the soil. This helps
aerate the soil and improve plant growth.
Crab feeding and burrowing mixes nutrients into the soil,
which is also good for plants. (important)
Fiddler crabs also promote marsh
plant growth that is important for the protection of coastal
cities from hurricanes.
WILL GIVE BRAINLIEST!! Please just take time to look! Thank you:) Under the right circumstances, the lysogenic cycle changes to the lytic cycle. Explain whether the lytic cycle can change to the lysogenic cycle.
Answers
Answer:
I don't think that lytic cycle can change to the lysogenic cycle.
Environmental stressors such as starvation or exposure to toxic chemicals may cause the prophage to excise lysogenic cycle and enter the lytic cycle.
Hope it helps.
Three questions a environmental biologist would ask
Answers
Answer:
is this land consistently like this?
what is the annual precipitation rate?
hiw many animals live here?
Explanation:
these are the kinds of questions asked
Question 7 (1 point)
Critique the following hypothesis. The width of a rainbow is proportional to the number of raindrops that fall in a storm.
Answers
Answer:
Explanation:
Droplet Size. The colors we see of the rainbow depends on the size of the raindrops. If the drops are large, 1 millimeter or more in diameter, the rainbow will be bright with well defined colors where red, green, and violet are bright but having little blue. As the droplets get smaller, red weaken
Science is based on fact and ______ evidence.
A. subjective
B. empirical
C. hypothetical
Answers
Answer:
The answer is B.
Explanation: Subjective evidence is based on personal suggestions, so that is wrong. Hypothetical is a guess, so it is wrong. So it would be B, since empirical means evidence based on facts and observation.
Hope this helps!
Answer:
The answer is B
Explanation:
Which of the following is NOT a function of a lipid?
Cell membrane formation
Long term energy storage
Quick source of energy
Hormones (steroids)
Answers
Triglycerides are Energy-storage molecules. They are formed by connecting three fatty acids to Glycerol.
What was the first animal to orbit the earth?
NEED HELP ASAP
Answers
Hurriedly prepared to take advantage of the propaganda value of the first satellite, Sputnik 2 utilized an animal habitat and carried the dog Laika, the first animal to orbit the Earth. The event began to galvanize the United States into organizing their space program.Nov 6, 2017
What cell is it going to be?
Answers
Answer:b, d
Explanation:
:)
Is seed germination abiotic or biotic ?
Answers
Answer:
Seed Germination itself isn't abiotic or biotic, but those affect the process of germination.
Explanation:
Biotic factors affecting seed germination include: inheritance to the seed, interactions with other organisms/abiotic factors, (like light, temperature, humidity and fire) affect seed germination differently.
Which of the statements regarding enzymes is FALSE? *
Enzymes are proteins that function as catalysts
O Enzymes are specific
O Enzymes provide activation energy for reactions
Enzymes can only be used once
Answers
Answer:
Enzymes can only be used once
Explanation:
Enzymes are there forever
Enzymes are the bio-catalysts that play a crucial role in several chemical reactions and metabolic cycles of the body.
The statement for the enzyme that is false is:
Option D. Enzymes can only be used once
The role of enzymes are:
1. The enzymes are the protein molecules, which are made up of long chains of amino acid residues.
2. Enzymes are highly specific because they have different shaped active sites for the binding of respective substrates.
3. Enzymes are the important parts of reactions and are the bio-catalysts. They lower the activation energy for the reactions and fasten the rate of reaction.
4. The enzymes are referred to as catalysts, and thus they are not utilized in the reaction, thus, they can be reused again.
Thus, Option D is false for enzymes.
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What would be the best positive control when testing for proteins
Answers
Answer:
nbj
Explanation:
In a person with a low platelet level, which process is slower than normal?
A antibody formation
B blood clotting
C oxygen carriage
D phagocytosis
Answers
Answer:
In a person with a low platelet level slower the blood clotting than normal
Explanation:
Lower platelets lever is called thrombocytopenia.
Platelets function is to clot the blood when it becomes low then there is no blood clotting.
A person with a low platelet level has a lower rate of blood clotting than the normal rate that is present in Option B. Platelets play a major role in blood clotting and stop blood loss.
What are the different functions of the blood?The blood has different types of cells, such as the red blood cells that take part in oxygen transport, nutrition transport, etc., and the white blood cells that take part in the protection of the body against foreign pathogens. There are different types of white blood cells, such as eosinophils, basophils, and lymphocytes, and these cells have different properties, such as the ability to detect some viruses, parasites, bacteria etc. Platelets are the cell fragments that take part in blood clotting along with other proteins.
Hence, a person with a low platelet level has a lower rate of blood clotting than the normal rate that is present in Option B.
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In fluorescence microscopy, the _____ absorbs light energy from the excitation light and emits colored light.
Answers
Answer:
fluorochrome absorbs light energy
♡ Hope it helps ♡
Give an example of solute, solution, and solvent.
Answers
Answer: Saline = Solution, Salt = Solute and Water = Solvent.
I hope that this helps you !
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.a) Lysosomesb) Endosomesc) Peroxisomesd) Nucleosomes
Answers
I need help with this fast please!
Answers
Answer:
its neutrons
Explanation:
An experiment was conducted to determine which type of fruit attracts the most fruit flies. Equal sized pieces of apple, pear, and banana were placed in separate containers at different areas around the school. The containers allowed the fruit flies to enter, but the fruit flies were unable to escape. After one day, observations were made by the students. Which best describes an error the students made in the experiment? A) too many types of fruit were used B) fruit flies were unable to escape C) different areas around the school were used D) one day is not long enough for the experiment
Answers
Answer:
C
Explanation:
The error that the student made was to place the containers for the different fruits in different areas around the school.
In order to ensure that each contain receives the same treatment, they should have been placed in the same area around the school. Different areas around the school might have varied populations of fruit flies, hence, jeopardizing the result.
The containers should have been subjected to the same conditions in order to ensure an unbiased outcome.
The correct option is C.
what is the main purpose for a plant to move water from the ground into the leaves
Answers
Answer:
The main purpose is for photosynthesis so that it can make food.
Answer:
For the process Photosynthesis.
Explanation:
Leaves need water to produce Chlorophyll and Chlorophyll will be produced by the process known as Photosynthesis.
A removal of a dam in a river has restored river flow and improvedthe water quality of the river. Which of these would most directly increase due to the enhanced water quality in the river ecosystem
Answers
Answer:
i dont you figure it out
Explanation:
sorry
Answer:
the life in the ecosystem such as fish turtles green life will all continue grow more efficiently due to the cleaner water
Explanation: the cleaner water helps the fish live a longer and healthier life
such as turtles do need fish and algae for food the green life the cleaner water helps them grow witch the fish and turtles can snack on hope that helped
Give an example of a non-testable question:
Answers
Answer:
a non testable question can be, what is better, chips or ice cream?
Explanation:
do foxes like chicken? yes or no made by fox
Answers
Answer:
yes
Explanation:
Answer:
yes
Explanation: