D. are there other possible causes of cancer?
Scientific argumentation involves testing hypotheses through rigorous experimentation and examination of evidence. In this case, before drawing any conclusions about the relationship between the chemical in the household cleaner and cancer, other scientists would want to examine whether there are other possible causes of cancer that should be considered. The scientist who made the claim would need to show through experiments and studies that the chemical in question is the cause of cancer and not some other variable that was not controlled in the study. And therefore, evaluating the evidence and testing the hypothesis is the fundamental part of scientific argumentation.
Plz help me well mark brainliest if correct!!....
Answer:
The answer is D (last one)
Explanation:
You are hired by Murphey Farms to decrease the backfat in their hogs. The current hog population has a mean backfat content of 20.2mm. You selected the hogs with the smallest amount of backfat, mated them and obtained the progeny generation. The selected hogs had a mean backfat content of 9.5mm. You know that the heritability for percent backfat in hogs is 0.47.
1. What is the selection differential? Round your values properly to 2 decimal digits.
2. What is the expected response to selection? Round your values properly to 2 decimal digits.
3. What is the expected mean of the progeny generation? Round your values properly to 2 decimal digits.
Answer:
SD = -10.7 R = -5.3X₁ = 14.9 ≅ 15mmExplanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.
Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.
The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,
SD = Xs - X₀
Heritability in the strict sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.
R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
• You are decreasing the backfat in the hogs.
• The hog population mean backfat content = 20.2mm → X₀
• The selected hogs had a mean backfat content of 9.5mm → Xs
• Heritability is 0.47 → h²
According to what we sow previously, we need to find out the value of X₁, which reflects how tall the new generation of corn will grow.
• We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁
X₁ = R + X₀
We already know that X₀ = 20.2mm
Now we need to calculate R.
• R = h²SD
We know that h² = 0.47,
Now we need to calculate SD
• SD = Xs - X₀
Xs = 9.5mm → Parentals media height
X₀ = 20.2mm → Population media Height
SD = Xs - X₀
SD = 9.5 - 20.2
SD = -10.7
Knowing this, we can calculate R
R = h²SD
h² = 0.47 SD = -10.7R = 0.47 x -10.72
R = -5.3
Finally, once we know the R-value we can calculate the X₁ value
X₁ = R + X₀
X₁ = -5.3 + 20.2
X₁ = 14.9 ≅ 15mm
Female African elephants are, on average, 7 - 9 feet tall. What is the upper end of this range in centimeters?
Note that 1 in. = 2.54 cm, 100 cm = 1 meter and 12 in. = 1 ft.
PLEASE ANSWER WILL GIVE BRAINLIEST
The figure below demonstrates the relationship between photosynthesis and respiration. What products at B are reactants for C?
a. 6H2O + C6H12O6
b. C6H12O6 + 6O2
c. 6CO2 + 6H2O
d. C6H12O6 + 6CO2
[tex]\huge{ \mathfrak{ \underline{ Answer} \: \: ✓ }}[/tex]
Correct option is B.[tex]C_6H_12O_6 + 6O_2[/tex]
Because, the products formed after photosynthesis are Glucose and Oxygen, which again reacts during respiration to release Energy.
_____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Answer:
b. C6H12O6 + 6O2
Explanation:
That process is called respiration where glucose reacts with oxygen to form water, carbondioxide and ATP ( energy )
A. The boiling point of the water is 100°C. Where are 100 degrees Celsius?
Located
On the thermometer on the right?
HELP ME, PLEASE!!!
A. O ponto de ebulição da água é de 100°C. Onde estão 100 graus Celsius
localizados
no termômetro à direita?
ME AJUDEM POR FAVOR!!!
Plant and animal cells are both eukaryotic cells. However, the functions of the different cells require that they have different
organelles. What are the specialized structures found in plant cells, but NOT animal cells? Select ALL that apply.
A)
cell wall
B)
centrioles
C)
chloroplasts
D)
cell membrane
E)
central vacuole
Answer:
A, C, E
Explanation:
Plant cells have specialized structures which are absent in animal cells. These include cell wall, chloroplasts, and central vacuole. Thus, correct options are A, C, and E.
What is a Plant Cell?Plant cell is the basic unit of all plants. Plant cells have unique organelles which are absent in animal cells. These organelles are responsible for specific functions which are important for the normal functioning of plant cell.
Plant cells have a unique cell wall which is absent in animal cells. Cell wall is made up of cellulose which is responsible for providing strength to the cells. Plant cells also have a chloroplast which contain a special pigment called chlorophyll. This pigment is responsible for photosynthesis. This organelle is absent in animal cells.
A large vacuole is also found in plant cells which is absent in animal cells. The vacuole contains reserved food material in the form of starch which is used in the unfavorable condition.
Therefore, the correct options are A, C, and E.
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A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity. Explain the three levels of biodiversity and the concerns associated with loss of diversity at each level.
B) Species and genetic diversity can be very beneficial to humans. Describe three ecosystem services that nature provides to humans.
Answer:
Biodiversity or Biological diversity is a term that describes the variety of living beings on earth. It is described as degree of variation of life. Biological diversity encompasses microorganism, plants, animals and ecosystems such as coral reefs, forests, rainforests, deserts etc.
-In biodiversity, each species, no matter how big or small has an important role to play in ecosystem. It represents the wealth of biological resources available to us. It’s all about the sustaining the natural area made up of community of plants, animals, and other living things that is begin reduced at a steady rate as we plan human activities that is being reduced by habitat destruction.
Explanation:
A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity.
B) Ecosystem services provided by biodiversity include pollination, pest control, and nutrient cycling.
A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity. Genetic diversity refers to the variation in genes within a species, which allows populations to adapt and survive in changing environments. Concerns associated with the loss of genetic diversity include reduced adaptability to environmental changes and increased vulnerability to diseases.
Species diversity refers to the variety of different species within an ecosystem. Loss of species diversity can disrupt ecological balance, impact food webs, and lead to the extinction of keystone species. It can also result in the loss of potential sources for medicines, agricultural crops, and other valuable resources.
Ecosystem diversity refers to the variety of different ecosystems in a region. Loss of ecosystem diversity can result in habitat loss, fragmentation, and degradation, leading to the decline or loss of specialized species adapted to specific habitats. It can also impact the provision of ecosystem services, such as water purification, climate regulation, and nutrient cycling.
B) Species and genetic diversity provide several ecosystem services to humans. One example is pollination, where diverse species of pollinators, such as bees, butterflies, and birds, ensure the reproduction of flowering plants and agricultural crops. Another ecosystem service is pest control, where diverse predator species help regulate populations of agricultural pests.
Ecosystems also provide the service of nutrient cycling, where diverse decomposers, such as fungi and bacteria, break down organic matter and recycle nutrients back into the soil. This process is crucial for maintaining soil fertility and supporting plant growth. Lastly, diverse ecosystems contribute to climate regulation by absorbing and storing carbon dioxide, a greenhouse gas that contributes to climate change.
Overall, species and genetic diversity support the functioning and resilience of ecosystems, benefiting human well-being by providing essential services like pollination, pest control, nutrient cycling, and climate regulation. Protecting and conserving biodiversity is essential for maintaining these services and ensuring a sustainable future.
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The process that shows how the plant grow lives and dies is called
Answer:
morphogenesis
Explanation:
The developmental process is known as morphogenesis. This process that follows a plant throughout its entire life and shows how the plant shapes itself through the development of cells, tissues, and organs throughout its life. These developments are dependent on many factors such as the genetics of the plant as well as the environmental conditions that the plant is exposed to. All of this affects the type of organs that the plant develops such as leaves, flowers, and fruits.
Why will individuals have brown eyes rather than a blue eyes?
Question 6 options:
a)
Brown eyes is a mutation.
b)
Blue eyes is recessive.
c)
Blue eyes is dominant.
Which cell structure is represented by the seed in the center of the avocado?
A. Nucleus
B. Cell membrane
C. Cell wall
D. Cytoplasm
Answer:
A
Explanation:
Answer:
A. Nucleus
Explanation:
The avocado seed is a hard, massive core in the center of the fruit, just like the nucleus in a cell.
1. Draw Conclusions Which petri dish showed the greatest amount of growth after one
Week? Why? NO LINKS OR MESSING AROUND PLEASE OR REPORTED INSTANTLY⚠
Answer:
i think its the first one because it has more moist environment checked after a week
Explanation:
i hope this is what u needed ;)
explain how energy carried by a light and sound wave with those properties
The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.While sound waves & light waves both travel as waves and are manifestations of energy, they differ significantly in important ways.Light and sound travel at very different rates.
How are the energies of sound and light similar?Both light and sound energy travel as waves, which is how they are comparable to one another.They have such a wavelength, amplitude, and frequency, to put it another way.
How do light & sound waves connect to energy?The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.
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Which factors that affect personal health are the most easily controlled?
a.
genetic
b.
environmental
c.
lifestyle
d.
global
Answer:
c. lifestyle
Explanation:
There are many things that can affect a person's health but not all can be controlled. For example, genetics are what people are born with and cannot be changed. Additionally, global and environmental situations can change but it takes an entire community; so, one individual cannot change these factors. However, one person can change their own lifestyle, assuming they have the willpower.
Which of the following is not an example of income?
answer-food
Answer:
food
Explanation:
which population dispersal pattern is the most common?
A. Clumped
B. Random
Answer:
A. Clumped
Explanation:
There are 3 common distribution patterns, namely clustered, evenly distributed, and random. The characteristics of the clustering distribution pattern are based on an individual's instinct to gather near their food source
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In which of the following scenarios would evolution by natural selection take place? (1 point)
O Microorganisms reproduce asexually, producing identical offspring
O Corn is genetically modified and cloned to make identical crops
O Penguins reproduce sexually, producing offspring that look different from one another
O A banana tree branch is planted, producing a clone of the parent tree
Evolution by Natural selection occurs when the offspring of genotypes are produced in response to the environment. Hence the correct option is C Penguins reproduce, offspring that look different from one another.
Evolution by Natural SelectionCharles Darwin and Alfred Russel Wallace developed the theory of Evolution by Natural Selection. For evolution by natural selection take place, Darwin described four essential conditions, these are:
Trait selection must be variable in the populationThe trait must be heritableThe struggle of existenceThe organism which fits to its environment.As per the question, penguins produced offspring that look different from another, this must be because of the evolution by Natural selection. Hence the correct option is C.
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PLS help
explain the effects of the use of antibodies in the control of a disease
i will give brainly
Answer:
this website make summery about antibodies https://www.mblbio.com/bio/g/support/method/antibody-role.html#:~:text=Antibodies%20have%20three%20main%20functions,holes%20in%20the%20cell%20wall).
What do lymph and blood have in common? AThey're both part of the lymphatic system BThey both transport nutrients to cells throughout the body They're both purified by lymph nodes They're composed largely of blood plasma
Answer:
They're composed largely of blood plasma
Explanation:
Match each of the "4Rs" to the statement that best describes it.
Answer:
47
Explanation:
Yes it is 690.00 hoepnthsi hekls
Answer true or false to the following statements. Use the graphic on the
back to determine the answers.
1. ______ Dogs belong to the order Felidae.
2. ______ A fox belongs to the phylum Arthropoda.
3. ______ Snakes belong to the phylum Reptilia.
4. ______ Lions belong to the class Mammalia.
5. ______ All arthropods belong to the Class Insecta.
6. ______ All rodents belong to the phylum Chordata.
7. ______ All amphibians belong to the class Reptilia.
8. _______ All primates are mammals.
9. _______ The class mammalia includes dogs, cats and rats.
10. ______ A lion belongs to the genus Felis.
11. ______ All mammals are primates.
12. ______ Insects and lobsters are arthropods
Classification is crucial as it allows grouping anything into specific categories.
The taxonomic hierarchy of classification is,
speciesgenusfamilyorderclassphylumkingdomExplanation:
Dogs belong to the order Felidae - FALSE
Dogs belong to the order Carnivora.
A fox belongs to the phylum Arthropoda - FALSEFox belongs to the phylum Chordata
Snakes belong to the phylum Reptilia - FALSESnakes belong to the phylum Chordata and class Reptilia
Lions belong to the class Mammalia - TRUE All arthropods belong to the Class Insecta - FALSEArthropods are invertebrate animals with an exoskeleton, segmented body, and jointed appendages. Although most of the arthropods are insects there are some exceptions like King crabs, Lobster, and Shrimp.
All rodents belong to the phylum Chordata - TRUE All amphibians belong to the class Reptilia - FALSEAmphibians have their class called amphibia and the class reptilia include a different class of organisms called reptiles.
All primates are mammals -TRUEThe class Mammalia includes dogs, cats, and rats -TRUEA lion belongs to the genus Felis - FALSELion belongs to the genus Panthera
All mammals are primates - FALSEA Primate is a placental animal that is characterized by having distinguished hands and feet and a well-developed brain. Examples are Apes and humans.
Whereas a mammal is a warm-blooded vertebrate animal. They include humans, lions, apes, dogs, etc.
Hence all primates are mammals but all mammals are not primates.
Insects and lobsters are arthropods - TRUEhow might a sudden rise in CO2 in the blood affect the gas exchange process ?
Answer:
process is faster
Explanation:
when CO2 accumulates in the blood it causes homeostatic imbalance eg it causes a fall in blood pH therefore gaseous exchange takes place faster to rid the body of this gas maintaining balance in the body
The length of a DNA double helix increases by 0.34 nm (nanometres) for every pair of nucleotides. The total number of nucleotides in a human body cell is
[tex]1.2 \times {10}^{10} [/tex]
Calculate the total length of a double helix in a human body cell (answer to be given in meters)
Answer:
If you multiple 1.02 × 2 = 2.04 meter, it is the total length of DNA in human diploid cells.
Explanation:
Cross a white feathered chicken with a checkered chicken (checkered chicken, checkered chicken!). Show the genotypic and phenotypic ratios.
Answer:
The correct answer would be -
genotype - 50% WB and 50% WW
phenotype - 50% checkered chicken and 50% white-feathered chicken.
Explanation:
In the chickens, the checkered trait occurs due to the codominance type of inheritance as when two different alleles of color Black feather and White feather allele present together they both show their presence and express as checkered chicken.
White feather chicken: WW
Black feather chicken: BB
Checkered chicken: WB
Cross = WW and WB
gametes: W, W and W, B
Punnett square:
W W
W WW WW
B WB WB
Thus, The correct answer would be -
genotype - 50% WB and 50% WW
phenotype - 50% checkered chicken and 50% white-feathered chicken.
Answer:
The correct answer would be -
genotype - 50% WB and 50% WW
phenotype - 50% checkered chicken and 50% white-feathered chicken.
Explanation:
what part of a virus that contains the instructions for making new viruses
genetic material
active
inactive
vaccines
over-the-counter medications
ability to multiply
Answer:
ability to multiply
Explanation:
the more they multiply the more they can spread and that's how they can get more instructions to make it worse like coronavirus right now you can give it from person to person because the virus knows it can multiply and transfer over to another human being for germs or touch
How is the structure of nucleotide related to the structure of the DNA molecule
Explanation:
DNA is made up of nucleotides. And each nucleotide consists of phosphate, a sugar group and a nitrogen base. Nucleotides are attached to form two long strands that form a structure called a double helix.
How would decreasing the amount of water in blood affect blood pressure
Answer:
Blood pressure would decrease.
Explanation:
If you don't drink enough water it's bad for your body since water is a source of living, and if you decrease the amount of water in your blood the blood pressure would decrease.
Which of the following refers to the diversity of available genes within a population?
A)
demographics
B)
genetic variety
C)
gene pool
D)
population distribution
E)
tolerance range
Which of these body systems has cells that attach to each other to form a leak-proof barrier?
Select one:
Urinary system.
Reproductive system.
Respiratory system.
Endocrine system.
Answer:
Epithelial cells are tightly packed, and this lets them act as barriers to the movement of fluids and potentially harmful microbes. Often, the cells are joined by specialized junctions that hold them tightly together to reduce leaks.
Explanation:
please help me I don't really understand
Answer:
.
Explanation:
HELP LIMITED TIME!!!!!!!!!
Solar, wind, wave, and nuclear energy are all ways of producing
energy without producing the negative outcome of:
Select one:
1, Decreased oxygen levels
2, Habitat loss
3, Increased greenhouse gas emissions
4, Non-native species
Answer:
3. Increased greenhouse gas emissions
Explanation:
Solar, wind, wave, and nuclear energy are all ways of producing energy without producing the negative outcome of increased greenhouse gas emissions. Greenhouse gases, such as carbon dioxide and methane, are released into the atmosphere through the burning of fossil fuels, such as coal, oil, and natural gas. These gases trap heat in the atmosphere and contribute to global warming and climate change. Solar, wind, wave, and nuclear energy, on the other hand, are forms of renewable energy that do not produce greenhouse gases when they are generated. They are considered more environmentally friendly alternatives to fossil fuels, and their use can help to reduce greenhouse gas emissions and mitigate the impacts of climate change.