The scientific method attempts to minimize the influence of bias or prejudice in the experimenter.
Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. In science a bias is a systematic error.
How is reproduction different than the other five characteristics of living cells?
Answer:
because reproduction is nature gifted and it is the way to increase population but living cells are the cells which keeps us alive
Reproduction differs from the other five characteristics of living cells because of the ability to replicate for continued existence.
The characteristics of living things include -MR NIGER D(acronym to remember)
Movement RespirationNutritionIrritabilityGrowthExcretionReproductionDeathNow Reproduction differs from all the others because while others are processes that organisms need for existence or survival,Reproduction on the other hand is the reason for the continuation of existence of species(creation of a copy).
Without reproduction, Living organisms would go extinct and would not be able to replicate themselves .
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What happens to particles in matter
when energy or heat increases?
A. they disappear
C. their motion decreases
B. they stay the same
D. their motion increases
Answer: it is D : their motion increases
Explanation: because as heat is increased it causes the particles to gain more kinetic energy making them move faster thus increasing their motion and leading to more successful particle collision .
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Which of the following types of compounds is unlike the other three?
A-wax
B-saturated fat
C-phospholipid
D-polysaccharide
Answer:
D-polysaccharide
Explanation:
A polysaccharide is a carbohydrate while the others have to do with lipids.
How does an mRNA strand reach the site for Translation?
A. It moves across the membrane through Active Transport
B. It exits the Nucleus through a Nuclear Pore
C. It is already where it needs to be, Translation occurs as soon as the mRNA is processed
D. A tRNA molecule carries it to the Ribosome
Hello i need help with this it’s just short (The subject is science and Im sorry if i got the subject wrong from the above) Thank you in advance <3
1. Forest ecosystems provide all of the following functions EXCEPT;
a. producing oxygen
b. controlling soil erosion
c. removing carbon from the atmosphere
d. lowering the biodiversity of the plant
2. Extinction is a natural process that occurs when the last member of a species does. Which of the following correctly arranges the mass extinction events from earliest to latest?
a. Cretaceous-Tertiary, Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic
b. Late Devonian, Cretaceous-Tertiary, Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic
c. Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, Cretaceous-Tertiary
d. Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic, Late Devonian, Cretaceous-Tertiary
3. Which contributes the most biodiversity loss?
a. habitat destruction b. pollution
c. invasive species d. population growth
4. Extinction can be caused by a Natural Phenomenon such as storm, flash floods, or Anthropogenic (Human made). Which of the following is believed to be the major and most impactful anthropogenic cause of extinction?
a. habitat destruction b. overpopulation
c. overexploitation d. pollution
5. Which of the following is not a benefit that tress can provide?
a. They can trap sediments and runoffs that help improve water quality.
b. They prevent the excessive warming of the planet by sequestering Carbon dioxide.
c. They serve as filters that rid the air of harmful pollutants and toxic gases.
d. None of the above.
Answer:
1. Lowering Biodiversity of the plant
2. I think it is B
3. Habitat Destruction
5. None of the Above
Explanation:
Answer:
1. d
2.c
3.a
4.a
5.d
Explanation:
1. Forests ecosystem have high biodiversity
3.Habitat loss from exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that cannot maintain populations of species into the future.
4.It is currently the biggest cause of current extinctions. Deforestation has killed off more species than we can count.
5. Im not sure.
It may be ans c. As Trees absorb toxic chemicals through their stomata, or 'pores', effectively filtering chemicals from the air.
Assertion : Parenchyma cells help in storage of food. Reason : Parenchyma cells are the main seats of photosynthesis.
Answer:
Assertion and reason are true and reason is the correct explanation of assertion
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
A. stratosphere
B. asthenosphere
C. magnetosphere
D. lithosphere
Answer:B
Explanation:The asthenosphere is the denser, weaker layer beneath the lithospheric mantle. It lies between about 100 kilometers (62 miles) and 410 kilometers (255 miles) beneath Earth's surface. The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt, becoming semi-molten.
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Explain mutations and how they can cause genetic disease
5. Identify Patterns To analyze the characteristics of life, why is it useful to identify
patterns at the level of molecules and cells?
NOTEBOOK
what is element.
help me . i wull follow you
Answer:
elemt is made up of only one kind of particle is called as elements
20 points for right answer
Answer:
it takes the shape of the jar and no volume i think
What is the named the system of measurement use by most countries around world?
HELP ME 40 POINTS!!!
1.A single statement that describes the purpose or reason for conducting an 1 point
experiment without making a prediction.
2. The word simply states that the results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered
3. This is a statement predicting the direction of a relationship between variables
4 it predicts the findings of study
To determine what sort of data table will be most useful or The purpose of an experiment is to test a hypothesis at least that's what i know. I do think "3. This is a statement predicting the direction of a relationship between variables" Is the right ansswer. Sorry if i'm wrong. :c
Describe the roles of the soil organisms in the carbon cycle
Carbon cycle is a biogeochemical cycle by which carbon is exchanged among the different components of the Earth.
Carbon cycle along with the Nitrogen cycle and the Water cycle, comprises a sequence of events that are key to make Earth capable of sustaining life.
It describes the movement of carbon as it is recycled and reused throughout the biosphere, as well as long-term processes of carbon sequestration to and release from carbon sinks.
The terrestrial carbon cycle is dominated by the balance between photosynthesis and respiration.
Carbon is transferred from the atmosphere to soil via ‘carbon-fixing’ autotrophic organisms, mainly photosynthesizing plants and also photo- and chemoautotrophic microbes that synthesize atmospheric carbon dioxide (CO2) into organic material.
Fixed carbon is then returned to the atmosphere by a variety of different pathways that account for the respiration of both autotrophic and heterotrophic organisms.
The reverse route includes decomposition of organic material by ‘organic carbon-consuming’ heterotrophic microorganisms that utilize the carbon of either plant, animal or microbial origin as a substrate for metabolism, retaining some carbon in their biomass and releasing the rest as metabolites or as CO2 back to the atmosphere.
What is the role of soil organisms in the Carbon Cycle?Soil Organisms or Microbes are critical in the process of breaking down and transforming dead organic material into forms that can be reused by other organisms and thus the microbial enzyme systems involved are viewed as key ‘engines’ that drive the Earth's biogeochemical cycles.
Soil microbes essentially transfer carbon between environmental compartments to fulfil their fundamental goal: survival through reproduction.
Thus, microbes utilize different organic and inorganic forms of carbon as carbon and energy sources.
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Pepsin and Trypsin are enzymes. At what pH do they have the highest rate of reaction?
Answer:
It has an optimum pH of about 1.5. Trypsin's optimum pH is about 8.
Explanation:
This active trypsin acts with the other two principal digestive proteinases — pepsin and chymotrypsin — to break down dietary protein into peptides and amino acids. These amino acids are essential for muscle growth, hormone production and other important bodily functions.
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Which statement associated with mosquito helps understand that malaria is a
communicable disease?
(a) The causative agent of malaria is a protozoan.
(b) The mosquito carriers the parasite Plasmodium that causes malaria.
(c) The mosquito lays its eggs in water collected in tyres, coolers, and open pits.
(d) The parasite is transferred inside the body of a health person along with the
mosquito bite.
Answer:
(d) The parasite is transferred inside the body of a healthy person along with the mosquito bite.
How is the DNA described and what does this mean ?
Answer:
DNA stands for deoxyribonucleic acid, which is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell and are passed down from parents to their offspring.
Answer:
DNA is made up of molecules called nucleotides each nucleotide contains a phosphate group, a sugar group and a nitrogen base. the four types of nitrogen bases are adenine (A), thymine (T), guanine (G), and cytosine (C). Deoxyribonucleic acid or DNA is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell, and are passed down from parents to their children.
In what layer of the epidermis does mitosis
occur?
Answer:
Mitosis occurs in the deepest layer of the epidermis, which is called the stratum basale.
How is the energy stored in ATP released?
A.) ATP bonds with oxygen atoms
B.) Breaking the chemical bond between the 1st and 2nd phosphate
C.) Breaking the chemical bond between the 2nd and 3rd phosphate
D.) The energy in an ATP molecule doesn’t need to be “released”
Answer:
When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work
5 example of balanced and 5 example of unbalanced
Answer:
I think you asked for balanced and unbalanced chemical equations. your answer is in the attachment !
I'm not sure if you're talking about forces or not, but ill answer anyways.
Balanced Forces:
A person standing/sitting stillAn object floating in the waterPicture frames on a wallA jacket hanging on a coat rackA tug of war game where neither side is winningUnbalanced Forces:
A car acceleratingAn object sinking in waterAn object getting knocked over by the windA fruit dropping from a treeRiding a skateboardOrganisms need ?to conduct essential life activities
Answer:
im pretty sure the answer is cells.
Tides occur in ocean,why?
Answer:
¿Qué Causa las Mareas? Podemos decir de una manera sencilla que las fuerzas de atracción que tanto el sol como la luna ejercen sobre la tierra, permiten una deformación y consecuente movimiento de las masas de agua de mares y océanos; esto hace que los niveles de agua suban y se formen las mareas.NOTA: Aquí anexo la respuesta en ingles.What Causes the Tides? We can say in a simple way that the attractive forces that both the sun and the moon exert on the earth, allow a deformation and consequent movement of the water masses of the seas and oceans; This causes the water levels to rise and tides to form.
Mitosis undergoes 4 stages. PICK ONE stage and outline what happens in this stage?
13. Think of a concept that might be easier to understand or explain by making a model. Identify the
concept, and explain why a model would be useful.
A concept that is easier to understand using a model is the atomic structure.
The atom is the smallest particle of a substance that can take part in chemical reaction. All substances are made up of atoms but these atoms are not visible to the naked eyes.
The concept of atomic structure lies at the base of understanding science. Hence, a science student must thoroughly comprehend this concept.
Since atoms can not be seen with naked eyes, it is imperative to use a model to aid the learner in conceptualizing the structure of atoms.
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Which of the following would not be facilitated diffusion?
A: A water molecule passes through a semi permeable membrane
B: A large glucose molecule enters the cell through a pore protein
C: An amino acid exit the cell through an integral protein
D: A chlorine ion (CI-) unlocks a protein channel, and passes through
Answer:
A. A water molecule passes through a semi permeable membrane
Explanation:
Facilitated diffusion is the diffusion of a molecule without any assistance from a protein or protein channel.
In facilitated diffusion, a molecule will diffuse by itself through a semi permeable membrane, such as the cell membrane.
Answer choices B, C, and D are incorrect because they are all examples of facilitated diffusion. The molecules required assistance from a protein.
Answer choice A is correct because the water molecule was able to pass through by itself.
So, the correct answer is A. A water molecule passes through a semi permeable membrane
A new video game manufacturer has claimed to make an entertaining action games that can improve your vision
Answer:
The video game manufacturer will have to provide evidence to support their findings. If you wanted to test their claim, first write a null and alternate hypothesis and do tests that provide data that can either reject or fail to reject the null hypothesis
Explanation:
is a biosphere is smaller than anecosystem.
Answer:
Yes!
Explanation:
From largest to smallest: biosphere, biome, ecosystem, community, population, and organism. Hope I helped :)
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What would happen if there are no villi in the walls of the small intestine? (a) Less surface area will be available so it will not absorb required amount of nutrients for the body (b) More surface area will be available so it will not absorb required amount of nutrients for the body (c) Less surface area will be available so it will absorb required amount of nutrients for the body (d) None of these
Answer:
(a) Less surface area will be available so it will not absorb required amount of nutrients for the body
Explanation:
Hope it helps :)
Which tree harvesting method removes whole trees in rows in several cuttings over several years?
seed-tree cutting
shelterwood cutting
strip logging
whole-tree harvesting
Answer:
shelter wood cutting is the answer
Explanation:
hope it may help you