The best way to ensure that results of a study are generalizable to a population is by using a random selection of people in that population
The goal of every research experiment is to obtain results that are generalizable to a whole population.
This is achieved by the method of random selection. In random selection, members of the of the population are selected in such a way that is representative of the entire population. If for instance, I want to study a school having six classes which comprises of boys and girls. There are 700 students in the school and I need only 180 students to participate in a study whose results will be extrapolated to all the 700 students. I can decide to randomly select 15 boys and 15 girls from each class to participate in the study. This is an example of random selection.
In this way, the results obtained from the study is reflective of the whole population even though only a sample of the population actually participated in the study.
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A sequence of DNA was analyzed with a bioinformatics program that translated the sequence in all 6 possible reading frames.
a. True
b. False
What evidence would prevent scientists from classifying viruses as living organisms?
Answer:
The following evidences would prevent scientists from classifying viruses as living organisms:
1) They have subcellular or acellular (non-cellular) structure.
2) Do not respire or excrete.
3) Can be crystallized.
4) Can be stored as chemicals.
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~AH1807Peace!Which of the following describes the product of Meiosis?
A. 4 genetically identical diploid cells
B. 2 genetically unique haploid cells
C. 4 genetically unique diploid cells
D. None of these are correct
The option that describes the product of meiosis is D, i.e. none of these are correct.
What is Meiosis?Meiosis may be defined as a type of cell division in which four daughter cells are produced by a parental cell. These daughter cells are haploid in nature.
The product of meiosis is four genetically unique haploid cells which are not described in any options. So, the correct option for this question is D.
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A change in an organism's body is a(n)
A change in the environment is a(n)
A. instinctive, learned
B. internal stimulus, external stimulus
C. chemical signal, display
D. association, condition
Answer:
I believe is C. I might be wrong
Explanation:
¯\_(ツ)_/¯
A change in an organism's body is an internal stimulus, while a change in the environment is an external stimulus. Thus, the correct option is B.
What is the Environment?An environment may be defined as anything which is present in the surrounding of living entities through which it interacts for various purposes.
There are a lot of alterations in the body of an organism with respect to time. Apart from organisms, a lot of changes have also occurred in an environment gradually and continuously.
Changes in the organism's body are internal so it is called internal stimulus, while alterations in the environment are externally made so they are called external stimulus.
Therefore, the correct option for this question is B.
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break down component parts
Answer:
part c of the components
Please I really need your help.
What is a small structure within the cell that serves specialized functions?
Answer:
Organelles
Explanation:
Organelles are small,specialized structures found inside the cell which perform a specific task and help in the functioning of the cell.
Determine the correct energy transformations during the generation of electricity from fossil fuels.
A. Heat to Chemical to Electrical to Kinetic
B. Heat to Kinetic to Electrical to Chemical
C. Kinetic to Chemical to Heat to Electrical
D. Chemical to Heat to Kinetic to Electrical
Answer:
D. Chemical to heat to kinetic to electrical
The correct energy transformations during the generation of electricity from fossil fuels are D) Chemical to Heat to Kinetic to Electrical
What converts chemical energy to kinetic energy to electrical energy?
Batteries used in torches, computers, toys, and camera cells, are actually made up of chemical cells which convert the chemical energy from the batteries to the electrical energy required for the devices to work well.
What are the main energy types?Examples of these are light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy, and so on. Each form can be converted or changed into the other forms.
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Which part of the respiratory system is where oxygen enters the bloodstream?
Human genome experiment purpose
Answer:
El Proyecto Genoma Humano (PGH) fue un proyecto internacional de investigación científica con el objetivo fundamental de determinar la secuencia de pares de bases químicas que componen el ADN e identificar y cartografiar todos los genes de un genoma humano promedio desde un punto de vista físico y funcional, incluyendo
Explanation:
the correct answer is b
hello guys, Define wave length.I think this will be easy for u guys good day thank u
Answer:
the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Explanation:
Please tell me if it helps
Please help I have one more attempt. I need help labeling the upper muscles of the arm.
There are four muscles in the upper arm. These muscles are Brachialis, Biceps brachii, triceps brachii, and coracobrachialis.
What is the function of muscles in the upper arm?The upper arm has many muscles which are arranged in different compartments. The muscles in the upper arm are the muscles that connect the scapula with the thorax and are responsible for most of the movement of the scapula. The muscles that link the humerus are responsible for the movement of the arm. The muscles in the arm or the forearm move the arm, wrist, and hand.
The humerus is where the muscles that move your arm are located. The humerus is made up of the following muscles: Tricep, Biceps, Brachial, and Bicepsioradial. The 20-plus muscles that cause the majority of wrist, hand, and finger movement are located along the arm. The labeled image of the arm is attached below.
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The image below shows a club fungus. A club fungus has an erect, above-ground fruiting body and long, branching, underground hyphae.
How do the structures of the fruiting body and hyphae relate to their functions?
A.
The fruiting body is tall to allow for spore dispersal, while the hyphae are branched to increase the absorption of nutrients.
B.
The fruiting body is curved to help the uptake of decaying plant material, while the hyphae are long to increase gas exchange.
C.
The fruiting body is tall to maximize photosynthesis, while the hyphae are branched to support the release of waste products.
D.
The fruiting body is curved to improve absorption of water, while the hyphae are long to allow for reproduction.
Answer:
The fruiting body is curved to improve absorption of water, while the hyphae are long to allow for reproduction.May 12, 2020
Explanation:
If it helps you mark me as a brainleast
Answer:
Explanation:
d
Define Siamese twins
Answer:
Conjoined twins are two babies who are born physically connected to each other. Conjoined twins develop when an early embryo only partially separates to form two individuals. Although two fetuses will develop from this embryo, they will remain physically connected — most often at the chest, abdomen or pelvis.
Which of the following would be most likely to increase erosion rates?
A. A coastline with a well defined beach.
B. Waves breaking at the foot of a cliff
C. Waves with a very long fetch (have traveled far).
D. All of these
Answer:
D
Explanation:
we all need that all of then helps to increase erosion rates
What type of system is used to move the body?
The change in frequency of bean types over generations demonstrates how natural selection drives evolution by changing allele frequencies within a population.
a. True
b. False
what is endocrinegland?
Help .....plz help me
Answer:
Where is question. Hope you understand me
Explanation:
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What do spindle fiber and flagella have in common:
Select one:
a. They are examples on a structure called a microfilaments
b. They are all structures found in prokaryotic cells
c. They are microtubules
d. They are found in the nuclei of eukaryotic cells
Answer: c
Explanation: Spindle fiber: is a microtubules that comes out from the centrosomes when the cell is preparing for division. They are responsible for the segregation of sister chromatids and movement of chromosomes during mitotic and meiotic division.
Flagella: a slender threadlike structure, especially a microscopic appendage that enables many protozoa, bacteria, spermatozoa, etc. to swim.The thread-like structure is called chromosomes.
This can conclude that microtubules are common in spindle fiber and flagella.
What type of cells are produced during
meiosis?
A. asexual cells
B. diploid cells
C. division cells
D. haploid cells
Answer:
D. haploid cells
Explanation:
Meiosis results in 4 gametes with 23 unpaired chromosomes, making them haploid cells.
which enzyme breaks down lipids? which enzyme breaks down fats? which enzyme breaks down proteins?
Answer:
lipase enzymes, lipase, proteolytic enzymes
Answer:
for lipids and fat is same enzyme that is lipase enzyme. protease enzyme is for proteins.
PUT THESE ANSWERS ON THE RIGHT SIDE OF THE SCANTRON)
1. ENTR MEANS _______
2. AMYLO MEANS _______
3. ______ MEANS LIVER
4. ______ MEANS STOMACH
Answer:
PUT THESE ANSWERS ON THE RIGHT SIDE OF THE SCANTRON)
1. ENTR MEANS _______
2. AMYLO MEANS _______
3. ______ MEANS LIVER
4. ______ MEANS STOMACH
What are the roles of quality, policy and objectives in the University? (Answer in 300 words)
The role of quality policy and objectives in the university is to define the purpose and strategic direction followed by the school authorities.
The quality policy is usually written in a brief statement which describes the vision, mission and the objective of the university. The importance (roles) of quality policy and objectives in an university includes:
Establishing a quality policy makes its known that the university operates with ethical standards that should not be disobeyed.It serves as a requirement for any formalized quality management system.It can serve as a way to drive passion for cultural change within an organisation (university)It serves as a reminder to both employees and students of the university about their commitment to quality.Learn more here:
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The bacteria Listeria monocytogenes is capable of doubling every 36 hours in the refrigerator at 4°C and can grow even when temperatures are less than 2°C. Therefore, L. monocytogenes is best classified as a psychrophile.
a. True
b. False
Answer:
True
Explanation:
Listeria monocytogenes is a psychrophilic food-borne pathogen that is problematic for the food industry. Structures of Csps from psychrophilic bacteria have not yet been studied.
Listeria is not killed by freezing. Growth is arrested altogether, but normal growth will be resumed after thawing.
In an ecosystem, each trophic level receives energy from the level below it. What is the
source of energy for the first trophic level?
Answer:
Explanation: i don't know
What is the name of lipids building blocks?
Answer:
Glycerol and fatty acids are the basic building blocks of fats (lipids).
Explanation:
Terminologies used in cattle
Answer:
Like.. naming types of cattle?
Explanation:
Names for cattle ? or names.. for things used on cattle, or things done to cattle... elaborate and i can help!!!
is a pollen grain a cell
what happens if we do not eat food ?
Answer:
If we do not eat food we will not get energy.
Answer:
When someone doesn't eat food, the effect might surprise you. That person will not die immediately, they might pass out and starve but you can go a long time with out eating, sometimes maybe a week! But that is what happens when you do not eat food, now if you do not drink water for a long time, you might actually die. Sometimes, you can't even spend a day without drinking water.
So, when you don't eat food you will not die, just starve. But when you don't drink water, you will die.
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