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Question 3 (2 points)
What is the phenotypic ratio of the F2 generation?
Answers
Answer:
9:7
Explanation:
We get the dominant phenotype in plants that have at least one dominant allele of EACH of the two genes; otherwise, we get the recessive phenotype. So, the observed ratio in the F2 generation is 9:7.
Related Questions
Water loss in plants is usually a result of transpiration. Which of the following best describes the path that water will follow from the root system to the shoot system utilizing the vascualr system?
A. to increase tolerance of environmental extremes
B. to accelerate the process of natural selection
C. to maintain homeostasis
D. to adapt to their environment
Answers
c to maintain homeostasis
It is c because it wants to regulate the amount of water in it's system
An axon releases dipamine outside of the cell by
Answers
Answer:
Having elecrical impulses travel down the axon to the terminal.
Explanation:
When a body dies, the decomposition process is __.
A.) a random group of event dependent mainly on the environment
B.) a predictable sequence of step-by-step events
C.) a very destructive process that has little value to the investigation
D.) a very simple process to investigate and interrupt, usually yielding little evidence
Answers
When a body dies, the decomposition process is a predictable sequence of step-by-step events.
How decomposition starts?Decomposition of human body starts several minutes after death with a step-by-step processes include;autolysisbloatactive decay ( putrefaction)skeletonization.Hence the body decomposition is a predictable stepwise process.To learn more about decomposition :
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Which statements are true?
Usable nitrogen becomes available to organisms in the soil.
Decomposers are important to the carbon cycle
Producers do not play a role in the water cycle/
Both 'A' and 'B' are true
Answers
Answer:
A and B are true
Explanation:
A and B are true
Según la historia evolutiva y sus diferentes saltos, ¿Qué linaje de especies es más antiguo?
A-Reptiles
B-Peces
C-Anfibios
D-Aves
Answers
es la A
Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.
espero y te ayude
10. Refer to p. 484 of your textbook. In sex-linked heredity, the characteristic gene is found on the X
(sex) chromosomes; therefore, it is inherited along with the sex of the individual. Hemophilia (X") is
the result of a recessive sex-linked allele. A carrier has one recessive allele for hemophilia; therefore,
she does not have hemophilia but can pass it on. If a normal male marries a carrier, what is the
probability that they will produce a male child who will be a hemophiliac? What is the probability
that they will produce a female child who will have the disease? What is the probability that they
will have a daughter who is a carrier?
Answers
Answer:
they have a chance of 25% of producing a male child who will be haemophiliac.
Explanation:
0% of producing a female child who will have haemophilia
25% of having a daughter who is a carrier
list the 6 main functions of sugar in food preparation and give a brief description of how it is used in this capacity
Answers
Answer:
Although the main reason for the use of sugar is its sweet taste, sugar has many other functions in food technology. The most important among these are that added sugar in foods acts as a sweetener, preservative, texture modifier, fermentation substrate, flavouring and colouring agent, bulking agent.
Explanation: i dont think this the main... but hope it helps :)
i need help with this pleasee
Answers
Answer:
A The oldest rock layer will occur at the bottom of the sequence
Explanation:
Answer:
A) At the bottom of the sequence
Explanation:
If undisturbed, rock layers will build up with time, leaving the oldest ones on the bottom as new layers are on the top.
Which of the following is the best representation of the limiting factors affecting the elk population in this ecosystem?
O Number of scavengers, number of wolves, number of scientists studying Yellowstone.
Number of scavengers, and harshness of winter
Number of wolves, and harshness of winter.
The elk have no limiting factors
Answers
Answer:
Number of wolves, and harshness of winter.
Explanation: I took the test
The combination of factors that is capable of limiting the population of elk in an ecosystem would be the number of wolves and the harshness of winter.
The limiting factors of a population are those factors that hinder the population of an organism from increasing unlimitedly. In other words, limiting factors hinder populations from reaching their biotic potentials.
Limiting factors can be density-dependent if they have correlations with the density of species or density-independent if they have no correlation with an organism's density.
Wolves generally prey on elks, so they limit the growth of elk's population in an ecosystem. A harsh winter will also limit the overall growth of the population of elk in an ecosystem.
Scavengers cannot be a limiting factor to elk's population because they only feed on carcasses.
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OBJECTIVE TEST
1. Which of the following statements about science is not correct?
A. Science has made life comfortable for man
B. Science has provided answers to all questions raised by humans concerning nature
C. Science has made the world look smaller
D. Science has shown the best way of solving problems
Answers
Answer:
c. Science has made the world look smaller
Explanation:
Honestly speaking, science has definetly made the word a larger and better place.
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How does carbon dioxide in the atmosphere eventually cycle through to a carnivore?
A. Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.
B. Carnivores use carbon dioxide in the atmosphere during cellular respiration.
C. Herbivores use carbon dioxide during photosynthesis, and a carnivore eats an herbivore.
D. Plants use carbon dioxide in the atmosphere during photosynthesis, and a carnivore eats the plants.
Answers
Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.
How carbon move from atmosphere to the biosphere?Carbondioxide gas move from atmosphere to the biosphere by absorbing by the plants in the process of photosynthesis. These plants are the food of herbivores so they eat it and carbon move from plant to herbivore. Then the carnivore feed on the herbivore.
So we can conclude that option A is the right answer.
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HELP PLEASE
Which of the following is a result of continental drift?
It causes climate change, which puts selective pressure on organisms.
It results in intentional introduction of invasive species, leading to competition.
It causes the buildup of atmospheric carbon, leading to climate change.
It results in habitat fragmentation, due to construction of new buildings.
Answers
What changes are caused by the hydrogenation of fatty acids?
A. The smell of fat changes
B. The number of calories per gram of fat is reduced
C. The fat becomes more invisible in foods
D. Liquid oils are converted to solid fats
Answers
O oxigênio é importante um gás na quebra de ligações entre os átomos que formam a glicose para a produção de energia. Por que a presença de ferro no nosso organismo é importante para este processo?
Answers
Answer:
It transport oxygen from lungs to the cells.
Explanation:
The presence of iron in our body is very important for this process because iron is responsible for the transportation of oxygen. Hemoglobin is made up of iron that takes oxygen from the lungs to each and every cell. Iron is an essential element for the formation of blood in human body. About 70 percent of body's iron is found in the red blood cells of our blood called hemoglobin and in the muscle cells called myoglobin. So we can say that iron is very important for the release of energy in the process of respiration.
Explain which sound wave has the greatest amplitude?
A
Wave A because the compressions and rarefactions are more similar, so it has a larger amplitude.
B
Wave A because the rarefactions are more tightly packed, giving it a greater frequency
C
Wave B because the tightly packed compressions give it a longer wavelength.
D
Wave B because the compressions are more tightly packed, giving it a larger amplitude
Answers
D
Wave B because the compressions are more tightly packed, giving it a larger amplitude
We have concluded that the spiders have different traits for silk flexibility because the offspring inherited different combinations of gene versions from their parents.
The evidence supports this claim because . . .
Answers
The is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
What is the significance of the spider's silk?The quality of the spider silk is genetic, and due to this, some of the spiders do produce high-quality silk while others produce average or poor-quality silk, but the silk has many applications in various fields, such as biomedical fields such as in tissue engineering, drug delivery, and wound healing, due to its biocompatible, non-toxic properties.
Hence, it is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
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)Winds occur
because of convection currents the troposphere. How do you think winds affect
air pollution?
Answers
Pollutants concentrated in the northern part of the Gulf of Mexico often create a dead zone. A dead zone is an area of an aquatic ecosystem that does not have enough oxygen to support sea life. Some of the chemicals that cause the Gulf dead zone come from as far away as Montana. Use this information and what you know of United States geography to select the statement that BEST explains how pollutants from Montana have an impact in the Gulf of Mexico.
Answers
Answer and Explanation:
Hello. You did not present the answer options, but we can say that Montana pollutants have an impact on the Gulf of Mexico, due to the Mississippi River. That's because Montana and the Mississippi River are in the same hydrographic basin, which causes Montana pollutants to reach the Mississippi River, which takes these pollutants to the Gulf of Mexico, as the Mississippi River flows into the Gulf of Mexico.
Therefore, we can say that Montana pollutants are easily taken to the Gulf of Mexico and this impacts marine life in an influential way.
Imma give u brainliest
If anyone answer these questions
Answers
Answer:
it is to do with something called angular moment. Gravity is the central force in the Universe, because it is the only one which has a significant pull over large distances.
5:Orbits are the result of a perfect balance between the forward motion of a body in space, such as a planet or moon, and the pull of gravity on it from another body in space, such as a large planet or star. ... These forces of inertia and gravity have to be perfectly balanced for an orbit to happen.
6;Gravity is the force that keeps planets in orbit around the Sun.
7.gravity
The dynamics of a rotating body is of course controlled by forces like gravity. Kepler's laws are a direct consequence of gravity
8.Rather, the term is derived from the concept of the tide "springing forth." Spring tides occur twice each lunar month all year long, without regard to the season. Seven days after a spring tide, the sun and moon are at right angles to each other
9.Neap tides occur halfway between each new and full moon – at the first quarter and last quarter moon phase – when the sun and moon are at right angles as seen from Earth.
Why does a lot of rain form over West Ferris?
Answers
Answer:
This idea helps explain why more rain forms over West Ferris than East Ferris.Therefore, when explain that water vapor condenses higher in the atmosphere, they are actually explaining that water vapor condenses high in the troposphere, which is relatively low in the atmosphere.
Please help me i have to turn this in or my mom will yell at me :(
NO BOTS OR TROLLS!!
Tysm
Answers
Explanation:
I'm guessing this
faster entropy
As a runner begins to run a race, his or her respiration rate will increase. The runner begins to breathe deeper and at a rapid rate. In addition, the heart beats more quickly. This will result in more oxygen and nutrients delivered to the muscle cells. Which three body systems are working together to help out the muscle cells?
Answers
Answer:
respiratory system
circulatory system
digestive system
Which statement best describes the breakdown of food in the digestive system?
Carbohydrate digestion starts in the stomach and protein digestion starts in the stomach.
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.
Carbohydrate digestion starts in the esophagus and protein digestion starts in the small intestine.
Carbohydrate digestion starts in the small intestine and protein digestion starts in the esophagus.
Answers
Answer:
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach
Explanation:
Salivary amylase is an enzyme found in the mouth it breaks down starch (a carbohydrate) into maltose. protease is the enzyme that breaks down proteins and its found in the stomach .
Answer:
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach
Explanation:
Easy points: Is this a good paragraph for my biology class??The question was why is it important for soil to contain nitrogen, phosphorus, magnesium, and potassium.
Soil is one of the main sources of nutrients needed by plants in order to grow. Nitrogen is used by plants for leaf growth and green color. Without nitrogen in the soil, the plant wouldn’t grow tall and produce enough food.Phosphorus is used by plants to help form new roots, make seeds, fruit and flowers.This is crucial because crops take up phosphorus only from the soil solution.Potassium helps plants form strong stems and fast growth. It also increases disease resistance.It triggers activation of enzymes and is essential for production of ATP. Magnesium is the central core of the chlorophyll molecule in the plant’s tissue. If Mg is deficient, the shortage of chlorophyll results in poor and stunted growth.
Answers
Answer:
It makes the roots absorb the nutrients easier
Explanation:
the roots of the plant are meant to absorb water and nutrients for the plants to manufacture food easly and to grow, the soil contain nutrients for the plants to absorb them.
The above graph shows vertebrate diversity in terms of total
number of species. Which of the vertebrate classes listed in
the graph would have the BEST chance of at least some of
the species surviving a major environmental change?
A:bony fish
B:birds
C:sharks, rays
D: mammals
Answers
Answer: a
Explanation:
Answer:
a
Explanation:
How does biomagnification put a top predator at a disadvantage?*
Answers
Answer:
Food is much harder to find the farther up the food chain you go. Toxins and chemicals accumulate in the bodies of everything that was eaten by the food that you eat. Toxins and chemicals bind to the tissue of larger animals better than smaller ones.
Answer:
Explanation:
Toxins accumulate in the bodies of everything that was previously eaten.
What is the speed of a wave with a wavelength of 0.5 m and a frequency of 20 Hz?
Answers
Answer:
You multiply 0.5 by 20 which will give you 10 your answer is 10
the speed of a wave with a wavelength of 0.5 m and a frequency of 20 Hz is 10
what is speed ?Speed can be referred as the ratio of distance to the time in which the distance was covered which is a scalar quantity as it has only direction and no magnitude.
The speed is represented as s=d/t, Where, s is the speed in m.s-1, d is the distance traveled in m, t is the time taken in s
There are four types of speed like Uniform speed, Variable speed, Average speed, Instantaneous speed
Uniform speed is where the object covers equal distance at equal interval of time, variable speed is defined as when the object covers a different distance at equal intervals of times.
Instantaneous speed is defined as an object is moving with variable speed, then the speed at any instant of time is known as instantaneous speed.
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An object's velocity can be determined by what two factors?
*Its speed and direction
*Its acceleration and its mass
*Its displacement and distance
Answers
Answer:
option a is right answer
Explanation:
velocity= displacement/ time
5. What animal does the scientist Shawn Carol study?
Answers
Answer:
His studies focus on the evolution of cis-regulatory elements in the regulation of gene expression in the context of biological development, using Drosophila as a model system.
Answer: His studies focus on the evolution of cis-regulatory elements in the regulation of gene expression in the context of biological development, using Drosophila as a model system.
Explanation:
Landscapes with a faulted and folded surface bedrock structure, steep slopes, and high elevations are classified as
1)mountains
2)lowlands
3)plains
4)plateaus
Answers
Answer:
The correct answer is 4. Plateaus.
Explanation:
A plateau is a relatively flat, relatively high-lying part of the earth's surface that is wholly or almost wholly bounded by steeply sloping terrains. There is a pronounced slope on at least one side. The original flat area has mostly risen vertically as a whole due to geological factors. It may possibly have been cut by rivers, giving the impression of a hill or mountain landscape, but this is not it.
Answer:
1. Mountains
Explanation:
