Selective breeding is a technique to obtain offspring with desired traits, characteristics of cattle include meat and height, whereas wheat is obtained by crossing high yield plants.
What is Selective breeding?Selective breeding is a human technique used to obtain descendence (either plants or animals) from a given genetic cross.
This technique (selective breeding) is used in agriculture to obtain wheat with higher grain yields.
Two characteristics of cattle that have been human-driven selected include meat and average size (height).
It is possible to obtain wheat with desired features by crossing plants having desired genes (it is an autogamous plant).
The characteristics of the chickens (Kendo and Bibby) are not found here, but it is possible to select desired phenotypes by crossing them and selecting offspring.
In conclusion, selective breeding can be used to obtain offspring from a given genetic cross expressing desired traits.
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. Which of the following is NOT a characteristic of life?
a. Breathes air to survive
b. Can move and respond to stimuli
c. Grows and develops over lifetime
d. The ability to reproduce
Answer:
c
Explanation:
Grows and develops over lifetime cannot be considered as a characteristic of life.
Characteristics of Life
Can move and respond to stimuliBreathes air to surviveThe ability to reproduceWhat is the difference between class crustacean and class Arachnidan?
Answer:
The main difference between arachnids and crustaceans is the type of habitat they live for instance crustaceans live in an aquatic environments but archanids live on lands
See the file attached!!
i hope my handwriting is understandable...
Which of the following are Phylogenetic trees also know as ?
help...
The graph shows projected changes in the populations of the world. Based on the information in the graph, wich region is expected to have the least population growth over the period shown.
Europe
Asia
Africa
Australia
Based on the graph the region expected to have the least population growth will be Australia.
Graphical illustrationsLooking at the given graph the population size of each region starts at a lower point and ends at a higher point on the graph between the years 1950 and 2050.
The change in the population also varies depending on the scale on the y-axis. Australia has the lowest scale which lies between somewhere above 10 and 50.
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Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Based on this information, what is true about human skin color?
Answer:
Your skin colour is based on millions of years of evolution depending on where your ancestors lived and their living conditions. Skin colour varies on where you live (or came from). Children will have different tones or shades of skin from their parents due to human skin colour having multiple genes. This is an example of polygenic inheritance.
Explanation:
see the picture below to see how different skin colours depend on where they live:
hope this helps:)
Is it possible to see the Milky Way from Earth or do we need satellites?
Answer:
Yes, we can see it from Earth. Not the entire thing, but everywhere you look you can see the Milky Way. To see the entire thing, you would need to take a panoramic picture using huge telescopes, both on Earth and in space.
Explanation:
We're already in the Milky Way.
Drop a paper of piece of thermopol and piece of plastic from a height of 10 to15 feet note the time for each object to hit the ground why does the paper more time than thermopoland how did thermopol more than the plastic piece how did it happen explain
Yes, it is possible because making a paper fold takes far less time than making a thermal or plastic item. The gravitational force is the reason behind this.
What is thermocol?Polystyrene, a complicated substance, is used to make thermocol. When heated to over 100°C, it changes to a liquid condition and then returns to a solid state when cooled.
A gravitational force is defined as which draws particles or bodies together.
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identify a process that could cause a new pesticide resistant gene to appear in a mosquito population (short written response)
How does the central nervous system integrate incoming information.
Answer: Impulses
Explanation: Impulses are brought together creating sensations either adding to memory or helping produce thought that translate sensations into perceptions
Select the correct answer from each drop-down menu.
which domains of sustainability are referenced here?
domain
the
domain incorporates cultural norms that directly impact sustainable development. the
focuses on the protection and preservation of natural and artificial resources.
The domain incorporates cultural norms that directly impact sustainable development. hence, option B is correct.
What do you mean by economic domain?The economic sphere is a social one that includes connected human behaviors and exchanges and does not exist in a vacuum. Individuals, companies, organizations, and governments can all act as economic agents.
Cultural norms are incorporated into the economic sector and have a direct effect on sustainable development. The conservation and preservation of both natural and man-made resources are the major objectives of the environmental domain.
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9) Genetic variation is the source for evolution. Without a variety of phenotypes, there would be no differential survival upon
which natural selection can act. Which of these are sources of the genetic variation within a population? Select ALL that apply.
A) Errors caused by DNA polymerase during replication.
B) The failure of DNA to separate during DNA replication
C) Changes to the ribosomal structure during translation
Eliminate
D) Induced changes to the genome from environmental factors
E) Fertilization of two haploid gametes during sexual reproduction.
The genetic variation occurs due to induced changes to the genome from environmental factors, fertilization of two haploid gametes during gamete fusion. The correct options are D and E.
What is genetic variation?The presence of differences in gene sequences between individual organisms of a species is referred to as genetic variation. It allows for natural selection, which is one of the primary forces driving life's evolution.
The genetic variation occurs due to induced changes to the genome from environmental factors, fertilization of two haploid gametes during gamete fusion.
Thus, the correct options are D and E.
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Answer
a,d, and e
Explanation:
i did it
Viruses do not possess all the characteristics of life. Identify those characteristics that viruses display and those they don’t display.
Viruses are organisms that share traits with both living and non-living organisms. The virus' genetic material is made up of both DNA and RNA.
What are viruses?
A virus is an infectious microorganism made up of a nucleic acid segment (DNA or RNA) encased in a protein coat. A virus cannot multiply on its own; instead, it must infect cells and make copies of itself using the host cell's components. A virus frequently kills the host cell in the process, resulting in harm to the host organism.
Viruses have the following characteristics:
Viruses have an exterior capsule layer and a specified boundary. Only the host cells provide energy to the virus. They thrive and mature, multiplying their numbers solely within the host cells.
Viruses lack the following characteristics:
A virus is a single-celled animal with no more than one cell. In the virus, there is no internal organization. If a virus is present outside of the host environment, it does not grow, develop, or require energy. Viruses do not remove trash.
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A 2000kg vehicle travelling 30m/s takes 10s what force did the vehicle experience
A.-7000 km•m/s2
B.-6000km•m/s2
C. -5000km•m/s2
D.-8000km•m/s2
The average force vehicle experiences is 6000N. The correct option is B.
What is Newton's second law of motion?It states that the force F is directly proportional to the acceleration a of the body and its mass.
F =ma
Given is a 2000kg vehicle travelling 30m/s takes 10s.
It takes t = 10s to come to rest, then the acceleration will be
a = velocity /time
a = 30/(10)
a = 3 m/s²
According to the Newton's second law of motion.
F = 2000 kg x 3 m/s²
F =6000 N
Thus, the average force vehicle experiences is 6000N.
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There is an initial population size of 11; after 3 births, 4 deaths, 2 immigrations
and 5 emigrations---what is the remaining population size?
6
7
8
9
None of the above
Answer:
7
Explanation:
Population size of 11
After 3 births
4 deaths
2 immigrations
5 emigrations
11+3-4+2-5=7
The process that divides dna equally between two daughter cells is called
interphase
mitosis
cytokinesis
o the cell cycle
The process of mitosis divides DNA equally between two daughter cells, i.e., option B is correct.
What is mitosis?Mitosis is a way of dividing cells in which the chromosome number remains the same as in parent cells, this is why it is also referred to as equational division.
Mitosis is the process by which a cell separates its duplicated DNA, eventually separating its nucleus in half.
Thus, the correct option is B.
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In algae and plants photosynthesis happens in the?
State two arguments people might make for not preserving botana curus.
The two-argument people might make for not preserving botana curus are they take a long time to grow, so it may not be worth the effort; there are organisms that are similar, and it may be expensive.
What is botana curus?Botana curus is a precious plant because it yields Carol, a substance that can be used to treat cancer.
Curol cannot be manufactured in a lab. Botana curus grows slowly and is an endangered species, so its ability to produce large amounts of Curol is limited.
Thus, the two arguments are they take a long time to grow, so it may not be worth the effort and there are organisms that are similar, and it may be expensive.
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If some members of a bird population had been able to escape Guam and colonize another island, which genetic concept would likely have happened
The genetic concept which would likely have happened when a bird population that escaped Guam and colonized another island is species colonization.
What is species colonization?Species colonization is a process in which new species spread to new geographical areas and subsequently colonize the area.
The bird population that escaped Guam and colonized another island is an example of species colonization.
Therefore, the genetic concept which would likely have happened when a bird population that escaped Guam and colonized another island is species colonization.
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Some organisms exhibit flexibility in terms of their energy harvesting reactions. If provided with oxygen, they will obtain energy through aerobic respiration. If in an environment without oxygen, they will turn to fermentation to satisfy their energy needs. These organisms are classified as
These types of organisms are classified as facultative aerobes.
What do you mean by aerobic respiration?In order to create energy from food, cells must engage in a process known as aerobic respiration, which occurs when there is an oxygen gas present.
An organism that uses anaerobic respiration to produce ATP is known as a facultative aerobes. Although these bacteria need oxygen to survive, they may also exist without it. Despite being able to exist in the presence of oxygen, some creatures do not require it. By fermenting, they produce ATP. Aerobic respiration is how they produce ATP.
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Pretest: Unit 3
Question 27 of 32
In cellular biology, what is the definition of the word specialized?
A. Adapted to a specific function or condition
B. A structure within a eukaryotic cell that performs a specific
function
C. Containing unique DNA
D. Carried across the cell membrane by a specific protein
Adapted to a specific function or condition is the definition of the word specialized. Thus, the correct option is A.
What is specialised cells?
Specialized cells are cells in the body that have specific structures and functions.
Different tissue types, such as muscular tissue and nerve tissue, are formed by specialized cells working together in groups. Organs are made up of tissues that work together to accomplish a certain function in the body. The following is a list of some organs and their functions in the human body.
The heart is responsible for pumping blood throughout the body.The brain is responsible for processing and transmitting information throughout the body.Stomach: The stomach is in charge of digestion.The liver detoxifies the blood and processes glucose.Pancreas - The pancreas aids digestion and helps regulate blood sugar.For more information regarding specialized cells, visit:
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the shape of a protein molecule is determined by what?
Answer: I belive that the shape of a protein is determined by its primary structure (sequence of amino acids). The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
1. Suppose that a sample of beef broth initially contains
16 bacterial cells. After 4.0 h, there are 1.6 × 106
bacterial cells in the sample. Assuming that the
bacteria reproduce at a constant rate, calculate the
growth rate of the bacterial population for the given
time interval.
From the calculations, the rate of growth of the culture is 2.88.
What is exponential growth problem?We apply the exponential growth problem when there is an exponential increase.
Thus, we have; P =Poe^rt
P = amount at time t
Po = amount originally present
t = time taken
r = rate of growth
1.6 × 10^6 = 16e^4r
1.6 × 10^6/16 = e^4r
1.0 * 10^5 = e^4r
ln 1.0 * 10^5 = ln e^4r
11.5 = 4r
r = 11.5/4
r = 2.88
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Why is less energy needed for reaction to occur when enzyme is present?
Answer:
enzymes don't affect the free energy of the reactants or products
Explanation:
That is, they don't change whether a reaction is energy-releasing or energy-absorbing overall. That's because enzymes don't affect the free energy of the reactants or products. Instead, enzymes lower the energy of the transition state, an unstable state that products must pass through in order to become reactants.
Earth’s global average temperature is 14°C. Explain one change that can be made in this sim, that will dramatically increase the temperature.
Answer:
This graph illustrates the change in global surface temperature relative to 1951-1980 average temperatures. Nineteen of the hottest years have occurred since 2000, with the exception of 1998, which was helped by a very strong El Niño. The year 2020 tied with 2016 for the hottest year on record since record-keeping began in 1880 (source: NASA/GISS). This research is broadly consistent with similar constructions prepared by the Climatic Research Unit and the National Oceanic and Atmospheric Administration.
The time series below shows the five-year average variation of global surface temperatures. Dark blue indicates areas cooler than average. Dark red indicates areas warmer than average.
The “Global Temperature” figure on the home page dashboard shows global temperature change since 1880. One gets this number by subtracting the first data point in the chart (-0.16°C) from the latest data point (0.85°C).
Blank respiration allows some organisms to live in
environments or niches where there is no oxygen.
Answer:
it’s called the anaerobic respiration
Explanation:
The anaerobic respiration is the answer. I think it’s this because, the anaerobic respiration is supposed to help organisms be able to live in environments where there isn’t any oxygen. This is why I think that aerobic respiration should be the answer.
genetic drift simulation:
When you look at your chart, what did you notice about the fluctuations? What would you expect to see over time? were you ever close to losing an allele?
Answer:
yes
Explanation:
The consequences of genetic drift are numerous. It leads to random changes in allele frequencies. Drift causes fixation of alleles through the loss of alleles or genotypes. Drift can lead to the fixation or loss of entire genotypes in clonal (asexual) organisms
URGENT
State two reasons why some molecules can pass through a certain membrane, but other molecules can not.
Answer:
Molecules with bigger charge or size can not pass through every membrane but other molecules can.
1. bigger size
2. bigger charge
3. electronegativity
Explanation:
Hope this helps you!
What is most likely the reason Earth moves in an orbit around the sun?
Group of answer choices
Because the sun remains in motion with respect to Earth
Because Earth and the sun exert a weak gravitational pull on each other
Because Earth exerts a stronger pull on the sun than the sun exerts on Earth
Because the sun's mass creates a gravitational force that pulls Earth towards it
Answer:
because the suns mass creates a gravitational force that pulls the earth towards it
Weismann cut the tails of many generations of mice, bred them, and observed what their offspring looked like. What do you think he found? Does this support Lamarck or Darwin's ideas
Answer:
no se wey
Explanation:
gracias por los puntos :v
Outline the top down effects on bacteria in the four mesocosms
The Outline of the top-down effects on bacteria in the four mesocosms is
Zooplankton is bacterivores that help keep bacteria populations in Check. Ingestion of zooplankton by fish leads to a rise in bacteria levels. What are mesocosms?Generally, mesocosms are defined as any outdoor experimental system that investigates the natural environment in a controlled setting and may be thought of as a mesocosm.
In conclusion, Overview of top-down influences on bacterial growth in four mesocosms
To put it another way, zooplankton is bacterivores that play a role in maintaining a healthy bacterial balance.
Fish-eating zooplankton may cause an increase in bacteria in the water.
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