The Punnett squares provide information about the genotype and phenotype of individuals produced by the crosses. Cross 1) 3/4 = 75%. Cross 2) 2/4 = 50%.
What is a punnett square?The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Available data:
S represents a dominant star-bellied genes represents the recessive trait.We will assume this is a diallelic gene expressing complete dominance, this is, the dominant allele S completely hides the expression of the recessive allele s.
1st cross: mother and father both have star bellies and the recessive gene
Parentals) Ss x Ss
Gametes) S s S s
Punnett square) S s
S SS Ss
s Ss ss
F1)
Genotype
1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant SS
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
3/4 =75% of the progeny is expected to have star bellies
1/4 = 25% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 3/4 or 75%.
2nd cross: motherhas star bellies and the recessive gene and the father does not have a star-belly
Parentals) Ss x ss
Gametes) S s s s
Punnett square) S s
s Ss ss
s Ss ss
F1)
Genotype
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
2/4 = 50% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
2/4 =50% of the progeny is expected to have star bellies
2/4 = 50% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 2/4 or 50%
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Murray has been diagnosed with social anxiety. His therapist's practice aligns closely with the psychological theory of abnormality that focuses on psychodynamic explanations of psychological disorders. Which explanation is Murray's therapist MOST likely to give to explain Murray's social anxiety?
Murray's thought process is illogical in that he believes no one will find him likeable.
Murray subconsciously expects people to leave him since he was abandoned by his father.
Murray's interactions with people were punished when they resulted in embarrassment.
Murray expresses an unusually high level of neuroticism and introversion.
Answer:
I'd go with D: Murray expresses an unusually high level of neuroticism and introversion.
How will you justify the need of saprophytes in the ecosystem?
Answer:
It is because they are extremely beneficial. The reason saprophytes are so beneficial to the environment is that they are the primary recyclers of nutrients. They break down organic matter so that the nitrogen, carbon, and minerals it contains can be put back into a form that other living organisms can take up and use.
Which factor does not determine the strength of a toxin on a human population? (2 points)
A. Length of exposure
B. Timing of exposure
C. Genetic differences
D. Substance type
Answer:
C. Genetic differences
I hope this helps you
:)
Which of the following describes a mutation?
A. a person becoming tan after sitting in bright sunlight
B. a mother bird gathering food for her chicks
C. the changing of the structure of a gene
D. a change in the migratory patterns of a sea turtle due to increase water temperature
What is the largest single cell and how big is it? and What is the smallest cell?
The largest single cell Algae such as Acetabularia, a genus of green algae typically found in subtropical waters, can reach 10 centimeters, and the smallest cell in the human body for example is sperm.
The biggest single cellAlgae such as Acetabularia, a genus of green algae typically found in subtropical waters, can reach 10 centimeters, being one of the largest uninuclear cells found.
As they are multinuclear, species of the genus Caulerpa can be found, one of the largest cells in the world.
The yolk of an egg is a single cell when not fertilized. An ostrich egg yolk is therefore the largest cell in the world by volume!
With this information, we can conclude that the largest single cell Algae such as Acetabularia, a genus of green algae typically found in subtropical waters, can reach 10 centimeters, and the smallest cell in the human body for example is sperm.
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If you obtained your daily vitamin A from beta-carotene, how much would you have to consume from foods to meet the RDA of 700 mcg RAE (3 points)? List at least 2 symptoms of vitamin A deficiency AND toxicity (1 point). List at least 2 major foods of vitamin A and describe at least 3 health benefits of vitamin A for the body. (2 points)
Foods that contain substantial amounts of vitamin A include beef liver, spinach, broccoli and liver oil.
What is vitamin A?Vitamin A is a fundamental micronutrient that must be ingested in the diet in suitable amounts.
Leafy green vegetables (such as spinach) or orange vegetables (such as carrots) contain many vitamin A.
Vitamin A benefits include:
supports the immunityreduces ac_nesupports bonesLearn more about vitamin A here:
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Cells that detect blood osmotic pressure are called
Answer:
Osmoreceptors
Explanation:
"Osmoreceptors are sensory receptors that detect changes in osmotic pressure and contribute to maintaining fluid balance in the body. They are primarily found in the hypothalamus and kidneys."
-The School of Biomedical Sciences
What % of Earth's microbial life has been identified
Answer:
About 0.001 percent of identified microbial life.
Explanation:
Where does the moon get its light from?
Answer:
The moon shines because its surface reflects light from the sun.
Explanation:
^
Answer:
The sun
The moon shines because its surface reflects light from the sun. And despite the fact that it sometimes seems to shine very brightly, the moon reflects only between 3 and 12 percent of the sunlight that hits it. The perceived brightness of the moon from Earth depends on where the moon is in its orbit around the planet.
Explanation:
(250 word essay)
What are the environmental problems of this ecosystem and what would be the solution to these problems?
Answer:
Air pollution is one of the biggest threats to the environment and affects everyone: humans, animals, crops, cities, forests, aquatic ecosystems, and much more. Since the Industrial Revolution, people have been polluting the Earth like never before. There is seldom a place today that has not been subjected to pollutants in one shape or another. Air pollution can be defined as an alteration of air quality that can be described by measures of chemical, biological or physical pollutants in the air. Therefore, air pollution means the unwanted presence of impurities or the strange rise in the proportion of some components of the atmosphere. It can be categorized into 2 areas: visible and invisible air pollution. Air pollution is caused by the presence in the atmosphere of harmful substances, mainly built by human activities, even though occasionally it can result from biological phenomena such as volcanic eruptions, dust storms, and wildfires, also depleting the air quality. The basic answer for air pollution is to drive away from fossil fuels, replacing them with alternative fuels like solar, wind, and geothermal. Creating clean energy is necessary. But equally crucial is to reduce our consumption of fuel by assuming trustworthy habits and using more efficient machines. From planning to destruction, the green building seeks to create environmentally accountable and resource-efficient systems to reduce its carbon footprint. In addition, monitoring air pollution levels has evolved into extremely necessary to detect pollution highlands, better manage air pollution, and ultimately enhance air quality.
Explanation:
You need 4 more words.
Some common environmental problems that ecosystems may face and potential solutions are habitat loss and fragmentation, pollution, climate change, loss of biodiversity, invasive species, overexploitation of resources, etc.
Habitat loss and fragmentation: Ecosystems can be impacted by the destruction and fragmentation of habitats due to human activities such as deforestation, urbanization, and infrastructure development. Solutions include implementing protected areas, reforestation and habitat restoration programs, and sustainable land-use practices.Pollution: Pollution from various sources, including industrial activities, agricultural runoff, and improper waste disposal, can degrade ecosystems and harm organisms. Solutions involve implementing stricter environmental regulations, promoting cleaner production methods, improving waste management systems, and raising awareness about pollution prevention.Climate change: Rising global temperatures, altered precipitation patterns, and increased frequency of extreme weather events pose significant challenges to ecosystems. Solutions include reducing greenhouse gas emissions, transitioning to renewable energy sources, promoting energy efficiency, and adapting conservation strategies to mitigate the impacts of climate change.Invasive species: Non-native species can outcompete native species, disrupt ecological processes, and negatively impact biodiversity. Strategies to address invasive species involve early detection and rapid response programs, implementing control measures, and preventing the introduction and spread of invasive species through improved biosecurity measures.Overexploitation of resources: Unsustainable harvesting of natural resources, such as overfishing, illegal logging, and poaching, can deplete populations and disrupt ecosystem dynamics. Solutions include implementing sustainable management practices, enforcing regulations, promoting responsible consumption, and supporting local communities in adopting alternative livelihoods.Loss of biodiversity: Ecosystems are facing a global decline in biodiversity, with species extinction rates accelerating. Solutions involve establishing protected areas, conserving critical habitats, promoting sustainable land-use practices, and raising awareness about the value of biodiversity.Learn more about Ecosystem, here:
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. Explain why the universal recipient can receive all blood types.
Answer:
It because they have no antibodies to A, B or Rh in their blood and can receive red blood cells from a donor of any blood type.
Explanation:
Cellular respiration consumes oxygen (this is why we breath). Which step of cellular respiration uses this oxygen
Answer:
Aerobic
Explanation:
Your Welcome! Have a nice day!
•••**PLS HELP ME**•••
Answer:
earthquake- major geological event that occurs when plates…
Geoscience process- any natural process…
Tectonic plate- huge piece of crust …
Global- relating to the whole world
Microscopal- describing something so small…
Explanation:
Hope this helps! Have a great day :)
1
11. The Sun's energy begins as what
form of energy?
A. Electromagnetic energy
B. Chemical energy
c. Nuclear energy
D. Mechanical energy
option B nuclear energy
hope it helps..!!
I think is Chemical energy.
(1) What will happen to the population of deer with no predators in their food web?
(2) What will happen to other species of plants and herbivores on the island?
(3) What could scientists do to balance this ecosystem?
Answer:
The population would increase okay the plants and herbivores would decrease because of the deers and lack of enough food I had to think about it
Explanation:
I don't know the other sorry..
During composting, what happens to the initial ingredients such as food waste, paper products, and yard debris?
ANSWER HAS TO BE RIGHT AND EXPLAINED WELL TJJ OH BE BRAINLIEST
A. decomposition
B. planting
C. pollution
D. fertilization
Answer: decomposed
Explanation:
omposting is the natural process of decomposition and recycling of organic material into a humus rich soil amendment known as compost. For any business or institution producing food waste, this organic material can be easily decomposed into high quality compost.
:)
Answer: A. decomposition
Explanation:
Farmers spray pesticides on their plants to protect the plants from being eaten by insects. Some individual insects have a genetic mutation that makes
them resistant to the toxins in the pesticides. Which statement best describes how only a few resistant individuals resulted in the pesticide becoming
ineffective?
o The resistant insects are able to survive to reproduce and create a population that is also resistant
The resistant insects grow larger and eat less of the plants.
The resistant insects change the toxin on the plants, making it safe for others.
o
The resistant insects eat the contaminated surface and leave the rest for others
The correct option here will be A)
only a few resistant individuals resulted in the pesticide becoming
ineffective because The resistant insects are able to survive to reproduce and create a population that is also resistant.
How do insects become resistant to pesticides over time?spraying the same pesticide often enables the pests to develope resistant genes which enable them to survive. Insects without resistance genes die when exposed to insecticides, allowing individuals with resistance genes to survive and breed, resulting in more resistant insects. The number of resistant insects grows with each generation. hence the pesticide often becomes ineefective over time.
Hence The resistant insects are able to survive to reproduce and create a population that is also resistant.
other options are incorrect because:
resistant insects growing larger and eat less of the plants des not contribute to pesticide resistance.The resistant insects cannot change the toxin on the plants this is an impossible thing.The resistant insects eating the contaminated surface and leaving the rest for others wont result in the pesticide becoming ineffective,learn more about insect resistance here:
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A variety of plant populations can be found in a prairie. What would be the most likely effect on a plant populations if there was a significant decrease in rainfall? A- Competition for water among the plants would decrease B-Competition for water among the plants would increase C- it would increase the ability all the plants reproduce D-it would have no effect on the plant populations.
The most likely effect on plant populations in a prairie if there was a significant decrease in rainfall would be an increase in competition for water among the plants. So, the correct answer would be B - Competition for water among the plants would increase.
What is a plant population?Plants are dependent on water for a variety of processes, including photosynthesis, growth, and reproduction. In a prairie ecosystem, different plant species coexist and comete for limited resources such as water, nutrients, and sunlight. A decrease in rainfall would lead to a reduction in the available water supply, which would result in increased competition for water among the plants. As water becomes scarcer, plants will need to adapt to survive. Some plants may be better able to tolerate dry conditions or have deeper roots that can access water from deeper in the soil.
Hence, So, the correct answer would be B - Competition for water among the plants would increase.
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Which is organelle is labeled E
Answer:
Golgi aka Golgi Apparatus
Explanation:
It is a red layered looking part of the Eukaryotic Plant Cell.
Help if you know about overfishing. What two suggestions are given to help stop overfishing?!
Answer:
YOU CAN HELP STOP OVERFISHING
The world’s oceans are so big we thought for a long time that there was nothing humans could do to hurt them. Now we’re facing an imminent and global collapse of our fisheries, projected to happen as early as 2048, thanks to overfishing, wasteful fishing practices and massive overconsumption. But, there are a few key tried-and-tested solutions to overfishing that have been successfully implemented around the world. The trick is to scale these solutions up to a global scale, encouraging countries that have originally been resistant to helping and get them onboard, and supporting countries that don’t have the means to update their fishing policies themselves.
Here is what needs to happen…
CREATE MORE MARINE PROTECTED AREAS
Currently, less than two percent of the world’s oceans are protected in marine parks; and less than one percent of the oceans are protected from any kind of fishing. More no-catch zones must be established to allow fish populations and their ecosystems to recover and replenish themselves to ensure fishing for future generations.
The Marine Conservation Institute wants to increase that number tenfold, and have ten percent of our oceans become Marine Protected Areas by 2020. We would like to see 20 percent of the ocean protected to ensure increased healthy fish stocks in the future.
STOP TRAWLING
Trawling drags huge nets through the ocean that scoop up every animal and the ecosystem in its pathway, resulting in massive wasteful bycatch – dead fish are returned to the sea because they weren’t the target fish. We don’t have that kind of sea life to waste. Though there are many programs that focus on decreasing by-catch, and worldwide there are small regions where bottom trawling is banned or limited, these measures aren’t enough. Trawling needs to be banned outright.
Facing depleted fish stocks with an imminent and complete collapse, the Chinese government imposed a trawling ban in Hong Kong’s waters that took effect in December 2012. They did this by buying fishing vessels fitted for trawling, and supporting deckhands who’d be affected by the reduced amount of fish caught. Bans like this in the waters of Alaska, Chile and elsewhere are being fought for by environmental organizations. They need our help!
WORLDWIDE CATCH SHARES
Catch shares is a system of fishing management that is proven to allow fish stocks to replenish, while saving the livelihoods of fishing communities by preventing a sudden collapse. A total allowable catch is established, using scientific data about the health of fish stocks and the environment in a certain area, and catch shares are licensed out to each fishing business telling them exactly how much of each seafood species they’re allowed to catch.
Using catch shares makes seafood more valuable, meaning a higher, more predictable profit for fishermen, while protecting the environment. As opposed to limiting the time of a fishing season—driving fishermen on a mad dash to make their living in a short time and use trawling or other unsustainable fishing methods to do it—catch shares foster communication and stewardship.
A study of American and British Columbian catch shares systems found that over a decade, the total allowable catch increased 19 percent, by-catch decreased by 66 percent, and fishermen made 68 percent more money while having one-third fewer accidents on the job. And 100 percent of fishing businesses complied, rarely going over their limit. It’s a proven system that needs to be implemented worldwide, and strengthened where it does exist, like the Common Fisheries Program in Europe or on the Pacific Coast of the US and Canada.
what are Phylogenetic trees also known as ?
Explanation:
i have seen a young lady who was charming as an angel
Answer:
The answer to your question is (Evolutionary tree) or there called Phylogeny trees.
Explanation:
This means that they have relationships among various species.
-Hope This Helps!
-Justin :)
⭕EXPLAIN FACTORS AFFECTING PHOTOSYNTHESIS.
=====================×============×=================
Light intensity: Without sufficient light a plant cannot do Photosynthesis properly. Carbon dioxide concentration: Without carbon dioxide plant can't do Photosynthesis. Because it plays a very important role.Hope it helpsDescribe the ways in which bacteria cells cluster together
Answer:
their tails help them swim to eachother
Use the periodic table to identify the chemical
symbol or name for each element below.
zirconium:
rhenium:
:As
:K
tin:
yttrium:
Yb:
Answer:
ok wait in comments..........................
How does non random mating cause evolution
How non-random mating causes evolution is by individuals choosing their mate meaning that some individuals ls pass on some genes while others do not
Option C is correct
What is Non-random mating?Generally, Non-random mating happens when the chance that two species of a population will mate is not equal for all possible pairs of individuals.
In conclusion, This is when Species mate or select mates based on physical or specific attibutes
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Cells are made up of a colorless, jellylike substance called __ in which food elements such as
proteins, fats, carbohydrates, minerals, and water are present.
a. Plasma
b. Protoplasm
c. Cytoplasm
d. Membrane
Cells are made up of a colorless, jelly-like substance called protoplasm in which food elements such as proteins, fats, carbohydrates, minerals, and water are present. Option B is correct.
Protoplasm refers to the colorless, jelly-like substance that is present inside the cell membrane of the cell, and it is the living substance of the cell. All the activities of the cell are carried out in the protoplasm. It comprises the cell's nucleus, cytoplasm, and cell membrane. Protoplasm is a term used to describe the living substance found within cells.
It is the collective term for the cytoplasm and nucleus of a cell. Protoplasm includes various components such as water, proteins, lipids, carbohydrates, nucleic acids, and other organic and inorganic molecules. It plays a vital role in maintaining the structure, metabolism, and functioning of cells. Option B is correct.
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Answer: b. Protoplasm.
Explanation: Cells are composed of various components, including the protoplasm. Protoplasm refers to the colorless, jelly-like substance that fills the cells. It contains all the essential components necessary for the cell's functioning, such as proteins, fats, carbohydrates, minerals, and water.
Protoplasm consists of the cytoplasm and the nucleus, which are enclosed by the cell membrane.
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On average, how much does hair grow in one month?
A 1 centimeter
B 7 centimeters
C 15 centimeters
D 30 centimeters
Answer:
A. 1 centimeter
Explanation:
the American Academy of Dermatology stated that a human hair grows at a average of 1/2 inch per month as a total of 6 inches per year
Which statement describes the geologic features?
Layer K is the oldest.
Layer W is the youngest.
Fault Q occurred before layer K was deposited.
Layers B, W, and E were deposited after fault Q occurred.
Answer:
The correct answer is option C.
Explanation:
The correct answer is Fault Q occured before layer K was deposited. This should be correct on the Edge Unit Test. Hope this helps!
The statement that describes the geologic features is Layers B, W, and E were deposited after fault Q occurred. Hence option D is correct.
The fault Q is a line that cuts through the rock layers, and it is clear that the fault Q cuts through layers B, W, and E, but not layer K. This means that the fault Q must have occurred after layer K was deposited.
The other statements are not correct. Layer K cannot be the youngest, because it is cut by the fault Q. And the fault Q cannot have occurred before layer K was deposited, because the fault Q cuts through layer K.
Therefore, the only statement that correctly describes the geologic features is D) Layers B, W, and E were deposited after fault Q occurred.
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HELP ME OUT PLS!!!!!!!!!!!!!
1) A__ star has a greater temperature than a star.
A) blue, red
B) red, blue
C) red, yellow
D) yellow, blue
Answer:
D) yellow, blue
Explanation:
Yellow is hot like sun, hot sun sun is hot yellow. blue is cool color as well.
18) Why do rabbits from polar regions have white fur?
A) The white fur is more attractive.
B) The white fur camouflages them in the snow.
The white fur reflects more light warming the rabbit
D) The white fur makes the rabbits stand out in the snow.
Answer:
B) it is used to camoflauge the rabbit in the snow
Explanation:
To protect this rabbit from predators its evolved in this region with white fur to blend in,thus protecting it from being eaten or hunted
Answer: B. The white fur camouflages them in the snow.
Explanation: The reason rabbits from polar regions have the white fur is so they can camouflage in the snow to protect themselves from predators. It's the same reason why a lot of animals look like the environment around them. It protects them from being eaten by local predators in the area.
Hope this helps! :)