Answer:
Experimental design means planning a set of procedures to investigate a relationship between variables, or experimental design refers to how participants are allocated to the different groups in an experiment. The types of design include repeated-measures, independent-groups, and matched pairs design.
Annotated bibliography provides specific information about each source you've used. As a researcher you have become an expert on your topic: you have the ability to explain the content of your sources, assess the usefulness, and share this information with others who may be less familiar with them.
Annotated bibliography is a list of citations to books, articles and documents.
Good environmental science experiments are;
1.Water science fair projects.
2. Air quality Science fair projects
3. Climate change Science fair projects
4. Solid waste recycling Science fair projects.
Explanation:
Hope it helps.
Plz help ASAP assignment due today !!!
What is corona virus. What are ill-effects of this disease? How we can safeguard ourselves from this virus. What foods boost our immunity.
Answer:
Corona virus is a respiratory disease that has been recently discovered in late 2019. Ill effects of this disease include fever, dry cough, and tiredness. We can safeguard ourselves from this virus by practicing good hygiene and taking extra precautions, such as washing our hands, avoiding sick people, wearing a mask, and wearing gloves. Foods that boost our immunity are citrus fruits, broccoli, and garlic.
Forensic Science Why do you think DNA evidence is so important in many court cases? What changes has it made to forensic science?
Answer:
Its important because it shows who's the victim and it changed forensic science because it so what it the animal or something
Explanation:
Answer:
It's important because it's helped solve so many cases with looking into the DNA, proving, solving and even debunking crimes.
Explanation:
Which is produced by the endocrine system to control how cells and organs function?
Answer:The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, metabolism (the physical and chemical processes of the body), and sexual development and function.
Explanation:
Answer:
b, hormones
Explanation:
got it right on edge
Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. Based on the pedigree that is shown, which describes John? A)carrier for hemophilia B)expresses hemophilia C)does not have hemophilia D)expresses hemophilia and died of complications
Answer:
C) Does not have hemophilia
Explanation:
When a pedigree is half shaded, the person is a carrier.
When a pedigree is not shaded, the person doesn't express the gene.
When a pedigree is completely shaded, the person is affected.
Square usually is male and circles are usually female.
Since John is the non-shaded square and parent of 4 offspring, he does not have hemophilia. However, his wife is a carrier, and that's how their offspring have hemophilia.
Answer:
C
Explanation:
Messages sent by the brain to the endocrine system pass
O A. from neuroendocrine cells to glands via action potentials
O B. from neurons to neuroendocrine cells via neurotransmitters
O C. from neurons to neuroendocrine cells via action potentials
O D. from neuroendocrine cells to neurons via hormones
O C. from neurons to neuroendocrine cells via action potentials
Answer:
from neurons to neuroendocrine cells via neurotransmitters.
Explanation:
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An entomologist writes an article in a scientific journal which claims that fewer than 11 in ten thousand male fireflies are unable to produce light due to a genetic mutation. identify the type i error for the test.
Answer:
The correct answer is given as:
The error of rejecting the claim that the true proportion is fewer than 0.0011% when it really is lower than 0.0011%
Explanation:
When executing hypothesis testing, the probability of rejecting a true null hypothesis is referred to as type one error is.
When on the other hand there is the probability of not rejecting the null hypothesis when its actually false, type two error is said to have occurred.
The strenght/quality of a good test is the probability of rejecting a false null hypothesis.
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A disease is introduced to the island which kills only the plants that produce the large seeds. Consider changes in the bird population following the death of all plants that produce large seeds. Which portion(s) of the finch population will be selected against and least likely to have their genes represented in the next generations
Answer:
Explanation:
Following the death of all plants that produce large seeds, this will lead to a reduction in the population of the finches with large beak sizes since they are the ones that mainly utilized this plant food.
Their portion will be selected against and least likely to have their genes represented in the next generations.
1. How does an increase in concentration affect a chemical reaction?
Answer:
it speeds the reaction up
Explanation:
Answer:
speeds the reaction up, making it quicker
Explanation:
What kind(s) of cells can develop from multipotent stem cells?
A. Any cells of the human body, but not cells of the placenta
B. Only cells that are identical to the original stem cell
C. Any cells of the human body or the placenta
D. Only cells that are closely related to the original stem cell
Any cells of the human body, but not cells of the placenta can develop from multipotent stem cells. So, the correct option is A.
What are multipotent stem cells?A specific form of stem cell called multipotent stem cells can only differentiate into a small number of distinct cell types within a given tissue or organ. Multipotent stem cells are more specialized and can only differentiate into specific types of cells, in contrast to pluripotent stem cells, which may differentiate into every form of cell in the body.
Hematopoietic stem cells, which give rise to many blood cell types, and mesenchymal stem cells, which can develop into bone, cartilage, and fat cells, are two examples of multipotent stem cells. Multiple, closely linked cell types of a particular lineage or tissue type can be differentiated into by multipotent stem cells. Human multipotent stem cells have the ability to differentiate into any type of cell in the body, save for placental cells.
Therefore, the correct option is A.
Learn more about Multipotent stem cells, here:
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Q) Explain the term ; Diatomaceous Earth
Answer:
This is a natural rock that is easily smashed into a fine white to off-white powder.
Explanation:
It has a particle size ranging from less than 3 um to more than 1 mm.
Hope it helps.
NEED ANSWER ASAP
Eukaryotic cells, when compared to prokaryotic cells, tend to be which of the following? A. smaller, but specialized B. larger and more complex C. larger, but simpler D. smaller and simpler
Answer:
Option B) larger , but specialized
Eukaryotic cells have a specific nucleus and has organelles for energy producing(mithocondria) has lysosomes and other organelles. It is larger because it has specialized organelles to carry out various specific functions which requires more surface area.
The gene form of a trait is called a(n)_____. An organism’s allele combination is called the_______ . The physical appearance of an organism is called the________.
Answer:
The gene form of a trait is called a(n) allele.
An organism’s allele combination is called the genotype.
The physical appearance of an organism is called the phenotype.
Explanation:
Genes are segments of DNA that are the basic unit of heredity. They are passed on from parent to offspring.
A gene can be defined as the heredity unit which is transferred form the parent to the offspring and is responsible for determining the characteristics in an individual.
The gene form of a trait is known as an allele.Genotype refers to the genetic/allelic composition for a trait.Phenotype refers to the physical appearance of the genotype.The given blanks can be filled with allele, genotype, and phenotype, respectively.
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Which of the following choices is not a typical treatment for cancer??
A. surgery
B. radiation therapy
C. exercise
D. chemotherapy
Excersice/ cancer
Explanation:
why do you need surgery for cancer. excessive weakens their cells.
Which three processes are methods of genetic recombination?
w
O natural selection, crossing over, and independent assortment
crossing over, independent assortment, and fertilization
O independent assortment, fertilization, and natural selection
O fertilization, natural selection, and crossing over
Answer:
crossing over, independent assortment and fertilization
Explanation:
Genetic recombination is the production of offspring.which possess combination of traits that differ from those found in either of the parents
The three processes that are the methods of genetic recombination are as follows:
Crossing over, independent assortment, and fertilization.Thus, the correct option is B.
What is Genetic recombination?Genetic recombination may be defined as the process through which the interchange of genetic material between different organisms occurs that leads to the production of offspring with combinations of traits that are not exactly identical to their parents.
Natural selection does not lead to genetic recombination among individuals. It may be characterized as the process in nature through which diverse organisms better adapted to their environment tend to survive and reproduce more than those less adapted to their environment.
While the processes like crossing over, fertilization, and independent assortments are the methods that significantly lead to the genetic recombination among organisms.
Therefore, the correct option for this question is B.
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Which of the following aquatic environments would not freeze in winter?
Answer:
summer and springtsdfggu
Describe possible Co-dominance in a unicorn
Answer:
The unicorn has spots.
Explanation:
This shows codominance becuase the to colors are both shown
Which of the following statements associated with cellulose is false? A) It's a linear polymer of glucose. B) The glycosidic linkage is β(1 → 4). C) Hydrolysis is accomplished enzymatically by cellulase. D) Most animals can easily digest this compound.
Answer:
Most animals can easily digest this compound
Explanation:
Cellulose is a linear polymer of glucose comprising of beta 1,4-glycosidic linkage of glucose molecules; this is where it differs from starch. Cellulose is a polysaccharide made of glucose monomers just like starch. The enzymatic hydrolysis of cellulose is achieved by the enzyme cellulase.
Not all animals can digest cellulose. As a mater of fact, no vertebrate can digest cellulose directly. Many herbivorous animals possess symbiotic bacteria in their gastrointestinal tract which enables the digestion of cellulose. These bacteria possess the requisite enzymes for the digestion of cellulose.
what is the product of transcription and translation? (A). DNA (B). Proteins (C). RNA (D). Nucleic Acids
Answer:
B) Proteins
Explanation:
Transcription and Translation are part of central dogma of life (along with replication). Their main purpose is to make proteins, macromolecules which perform most functions and acts in our cells.
Transcription makes mRNA from DNA and translatation translates the mRNA and produces protein from it.
Answer:
(B). Proteins
Explanation:
my friend told me after biology class about month ago
A food handler who fails to report illness to the person in charge could cause a physical contamination?
Answer:
True
Explanation:
Physical contamination are foreign objects such as hair, fingernails, broken glasses , jewelries etc that are mixed with food. Although, it is important for a food handler who realizes that he is sick such as having fever, jaundice,wound while working to report such to his supervisor or manager,who will then take necessary action and to avoid risk of contamination; yet not the only cause of physical food contamination.
Physical contamination does not necessarily have to occur until the food handler is sick. It could be as a result of carelessness or not paying attention enough by the food handler . Physical contamination might not at all times cause injury or illness to the customer, yet such could bring discomfort to a customer who notices foreign objects in his food while eating. To avoid risk of physical food contamination, it is important for food handlers to keep jewelries to a minimum, wash fruits and vegetables thoroughly, wear hear neatly tied back, throw out and replace cracked, chipped, or broken dishware, glassware and equipment amongst others.
PART 1
which organelle is labeled A?
a. mitochondrion
b. ribosome
c. golgi apparatus
d. lysosome
PART 2
which organelle is labeled I?
a. cell membrane
b. ribosome
c. endoplasmic reticulum
d. nucleus
Answer:
Which organelle is labeled A?
c. Golgi apparatus
Which organelle is labeled I?
d. Nucleus
Explanation:
A Golgi apparatus or Golgi complex or Golgi body is an organelle responsible for packaging proteins.
Why do I still need the paper that I got out from mental health?
Answer:
Because it is important that you still have the paper for future reference to show that you have passed your mental health classes and do not have to take them again.
Answer:
If you didn't have the paper how would people know that you did officially get out of mental health? Also it shows that you were once in a mental health
Hope this helps!
Which organelle packages and distributes proteins that are received from the endoplasmic reticulum?
Answer:ribosomes
Explanation:
Answer:
ribosome
Explanation:
What is the basic purpose of cellular respiration? What are the reactants and products of cellular respiration overall? Also, give a basic description of the three main stages of cellular respiration (glycolysis, Kreb cycle, and the electron transport chain)
Answer:
The Main basic purpose is to be able to breath and live. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.The three main stages of cellular respiration (aerobic) would include Glycolysis, the Krebs Cycle and the Electron Transport Chain. The Krebs Cycle takes Citric Acid which is a derivative of Pyruvic Acid and converts this through 4 cycles into Hydrogen, carbon dioxide and water in the Mitochondrial Matrix.
Population
250
200
175
150
Number of Rats (in thousands)
125
100
100
90
76
75
50
130
45
SO
25
110
O
1
2
3
5 6
7
8
10
Year
Based on the graph, at what time did the rat population meet the carrying
capacity of the habitat?
A. Year 5
B. Year 8
C. Year 6
D. Year 2
Answer:
b
Explanation:
i took this before and i know its b
an Association between the root noodles of leguminous plant and rhizobium SP is known as what
Answer:
The question lacks options, the options are:
A. commensalism
B. mycorrhiza
C. parasitism
D. symbiosis
The answer is D, symbiosis (mutualism)
Explanation:
Organisms of same or different species interact with one another in their natural environment. The relationship between two organisms interacting with one another is called SYMBIOSIS. Symbiosis can be of different types depending on the effect of the relationship on the involved organisms. Symbiosis can be mutualistic, commensalistic or parasitic.
Mutualism is a kind of symbiosis in which the involved organisms benefit from the actions of one another. This is a case of the association between the root nodules of leguminous plant and rhizobium species.
Rhizobium is a bacteria genus found in the soil. They form nodules by attaching to the root of leguminous plants, which helps the plants to fix atmospheric nitrogen i.e converting gaseous nitrogen to a usable form (ammonia). In return, the plants provide organic acids for the Rhizobia bacteria, which they use as carbon and energy source. Hence, the association is a symbiotic relationship and specifically a mutualistic one.
The answer is no mycorrhiza because it is an association between a FUNGUS and a plant.
Answer:
noooooooooooooooooooooo
Explanation:
really
A photopsin is a protein
A. of a photopigment within cone photoreceptors.
B. of a photopigment within rod photoreceptors.
C. that is derived from Vitamin E.
D. that allows ions to flow into rod and cone photoreceptors
Answer:
A
Explanation:
protein pigment for vision in cone
: Which of the following is not a sign of sepsis? Which of the following is not a sign of sepsis? increased white blood cell count body temperature above 101°F (38.3°C) or below 96.8°F (36°C) increased respiratory rate (more than 20 breaths per minute) dilated pupils rapid heart rate (more than 90 beats per minute)
Answer: The correct answer to the question is DILATED PUPILS.
DILATED PUPILS is not a sign of sepsis.
Explanation: Sepsis can be defined as the way our body system respond to infection or invasion of a foreign body into the body system.(usually bacterial infection)
When Sepsis becomes severe,it is injurious to organs of the body(affects their function in a negative way).
Sepsis occurs when the body's immune system tends to fight infection in the body by the release of certain chemicals(cytokines and prostaglandins),the body instead of reacting in a coordinated manner to these chemicals rather reacts out of proportion to these chemicals released to fight infection and this will lead damage to organs of the body system.
Sepsis is characterised by Fever(above 101°F (38.3°C) or below 96.8°F (36°C), increased in respiratory rate (more than 20 breaths per minute), Increased heart rate (more than 90 beats per minute),increased white blood cell count,low blood pressure and mental confusion.
Treatment of Sepsis includes the administration of antibiotics and intravenous fluid, administration of drugs to support blood pressure and administration of steroids.
Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected? (3 points)
Answer:
The options are
it was too old to be used in modern times
it was too complicated for scientists to understand
scientists found new evidence to prove it invalid
scientists discovered a shorter theory to replace it
The answer is scientists found new evidence to prove it invalid
Steady State Theory of origin of the universe has been rejected due to new findings about how the universe was formed through carefully observing it which faulted past theories. This validates the option which states that scientists found new evidence to prove it invalid.
which type of molecule that can be found in living things lax carbon atoms
what type of ER are glycoproteins made in (rough or smooth) and what happens after they are made
Answer:When a ribosome happens to be making a protein with an ER signal sequence, ... The main cell type in the liver, the hepatocyte, is another cell with an abundant smooth ER. ... of all other proteins made by ribosomes bound to the rough ER membrane, ... are by far the most common oligosaccharides found on glycoproteins.
Explanation: