The change in allele and genotypic frequencies in a population is evidence of gene flow.
What is gene flow?The term gene flow makes reference to the interchange of genetic material between individuals of two or more populations.
The gene flow generates a change in the allele and genotypic frequencies in the individuals of a population in equilibrium.
The gene flow may be due to migration and this phenomenon must be mediated by reproduction.
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A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps the class should take to provide data to help them make a conclusion about the effect of gravity on objects of different masses
Gravity is a force that differentially affects objects depending on their masses. It is also a physical property.
What does gravity mean?Gravity is a force capable of pulling objects and/or materials toward each other depending on their masses.
Gravity on the Earth planet is able to maintain minor bodies (e.g., organisms) on its surface.
Gravity is a physical property because it varies depending on the objects that are involved (for example, gravity on Earth and Mars is not equal).
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How is preimplantation genetic diagnosis used in the future?
Please help
Thank you
Answer:
In recent years PGD technology has been increasingly used by infertile patients undergoing IVF treatment, in order to screen their embryos for chromosomal abnormalities. Aneuploidy is extremely common in human embryos and leads to a developmental arrest, implantation failure and spontaneous abortion.
3. How is heat transferred within the Earth?
(5 Points)
O A. by conduction
O B. by radiation
O C. By seismic waves
O d. by gravity
the answer is D
"During convection, heat is being transferred between substances in direct contact with each other by electro magnetic waves."
"Using the molten rock to explain the convection in the earth relative to how if affects the weather condition. Here, the rock is in a molten state, rising up from the bottom of the mantle after becoming hotter and less dense from the heat of the earth's core. As the rock loses heat into the earth's crust, it become cooler and more dense,sinking back to the core. These constantly circulating cells of hotter and cooler molten rock help to heat the earth's surface."
100 POINTS!! Pls help!
(I messed up putting the points on the other one)
Down syndrome, the most common genetic condition in the United States, is also known as Trisomy 21. What does this mean.
A. A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell.
Alternative energy sources come from renewable processes. please select the best answer from the choices provided t f
The statement 'alternative energy sources come from renewable processes' is TRUE.
What are alternative energy sources?The alternative energy sources are different types of energy produced by reversible natural processes.
These types of energy are constantly produced by the surrounding environment and can be reused.
The alternative energy sources include, among others, solar energy, wind energy, geothermal energy, etc.
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Answer:
true
Explanation:
Is yeast unicellular or multicellular organisms?
HEEEELLLLPPPPP
Deforestation is the second leading cause of global warming (climate change) worldwide, and it produces about 24% of global greenhouse gas emissions. Deforestation in the tropical rainforests contributes more carbon dioxide to the atmosphere than the sum of all cars and trucks that drive on the world’s roads.
Why would deforestation this lead to more carbon dioxide?
a
The changed habitats support more animals, like native birds and mammals, that produce more carbon dioxide.
b
The increased amount of timber harvested produces oxygen gas, which encourages the wildlife to generate carbon dioxide.
c
Loss of trees leads to a decrease of the ability of forests to act as carbon sinks to remove carbon dioxide from the atmosphere.
d
Equipment used for clear-cutting produce metric tons of carbon dioxide, which is released into the atmosphere during the process of deforestation
Answer:
C
Explanation:
According to Worldwildlife.org, Forest play a critical role in mitigating climate change because they act as a carbon sink - soaking up carbon dioxide that otherwise be free in the atmosphere and contribute to ongoing changes in climate patterns.
How does emissions of carbon dioxide impact climate change?
Answer:
The carbon emissions trap solar energy in the atmosphere which causes global temperatures to increase, this is also called the greenhouse effect. Since the global temperatures will increase, ice in the polar regions will melt causing the water level to increase leading to an influx of problems.
Explanation:
If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
Options :-1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
Answer:-Option 2.) White Blood Cells
Explanation:- Red Blood Cell(RBC) , Plasma , Platelets lack DNA White Blood Cell (WBC ) only have DNA RBC lack nucleus to make space for O2 as the work is to carry O2 with help of hemoglobin Platelets are the cell fragments of the large cells they help in clotting so too lack nucleusPlasma is the fluid part of the blood. so it contain water in its most part and too lack DNA bez plasma don't contain any cells WBC are the only cells which have well defined nucleus with DNA in above mentioned optionsThe monarch butterfly population has declined due to a scarcity of:.
Answer:
The monarch butterfly population has declined due to a scarcity of milkweed
Would a human with enough food and water and oxygen in a suit survive a full close orbit around Earth? I would think not because of all the space junk, but thats the only reason I can think of.
Explanation:
except that, their first problem is how to drink the water and eat the food provided while at the same time taking in oxygen...
And the close orbit would either pull them towards earth resulting in a collision
or shoot them out of the orbit at insane speeds
in both case they will die..
as soon as they will enter the earth's atmosphere, they will be burned alive by the heat due to the friction between their body and the air around them when they will be in the process of collision.
even if they avoid all this, they will still either be burn to death or freeze to death on either side of the earth coz the suit is only suitable for a limited amount of time...
What can influence the population growth of organisms?
Answer:
Population growth rate is affected by birth rates, death rates, immigration, and emigration. If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show exponential growth.
Explanation:
:)
What happens when the trade winds from South America break down?
Answer:
As a result of the reduced trade winds, warmer water from the western Pacific surges eastward, flattening the sea level. The thermocline in the eastern Pacific sinks as a result of the accumulation of warm surface water.
Explanation:
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what is some outliers for putting cabbage water, baking soda, and vinegar experinment?
What part of the cell provides temporary storage of food, enzymes, and waste products
Answer:
The Vacuole is the part of the cell that provides temporary storage to food, enzymes, and waste products.
Explanation:
The cell is the basic or fundamental unit of life. It is composed of a cell membrane, cytoplasm and cell organelles. The organelle that provide temporary storage for food, enzymes and waste products is vacuole.
What is vacuole?Vacuole is a membrane-bound cell organelle that is permanent and large in size in plant cell, but are temporary or nearly absent in animal cell.
It is the compartment that occupies a significant volume in plant cell.It is temporary location for the storage of food, enzymes and other waste products.
Thus, vacuole is the cell that provides temporary storage of food, enzymes, and waste products.
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A tall pea plant (Tt) is crossbred with a short pea plant (tt). The following Punnett square shows the separated alleles for two pea plants.
Punnett square showing female parent across the top with a phenotype of tall and a genotype of Tt and a male parent across the side with a phenotype of short and a genotype of tt. Inside the top left box 1 is written, inside the top right box 2 is written, inside the bottom left box 3 is written, inside the bottom right box 4 is written.
Which of the following shows the correct match of the box numbers and the genotype of the offspring?
1 = Tt; 2 = tt; 3 = Tt; 4 = tt
1 = Tt; 2 = Tt; 3 = Tt; 4 = Tt
1 = Tt; 2 = Tt; 3 = tt; 4 = tt
1 = Tt; 2 = tt; 3 = tt; 4 = tt
Answer:
the first option is correct
1 = Tt; 2 = tt; 3 = Tt; 4 = tt
To what level of organization does a paramecium belong to?
The level of organization that a paramecium belongs to is : Unicellular protozoa
What are paramecium?Paramecium are unicellular protozoa that belongs to the kingdom Protista. they are unicellular because they are comprised of a single cell organization. Paramecium are found in aquatic habitats such as freshwater and brackish waters.
Hence we can conclude that The level of organization that a paramecium belongs to is Unicellular.
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A male chicken, at least eight months of age, is a.
Answer:
Boiler
At 6 to 9 months, a chicken becomes a boiler. They are not actually boilers, however, they have that classification name at that point in their lives.
How many constitutional isomers are obtained when the following compound undergoes monochlorination?.
The constitutional isomers that are obtained when the compound -methyl cyclopentane undergoes monochlorination are five in number.
What is Monochlorination?This term is used to describe the process by which chlorination occurs using a single chlorine atom.
Monochlorination is used to convert lots of chemicals into commercially viable chemicals.
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what is the man system that runs our bodies
Answer:
the muscular system
Explanation:
Answer:
Circulatory system / Cardiovascular system:
Explanation:
It circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away. Keeps the body's temperature in a safe range. Hope this helps!
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It would be the pacific plate.
To the left of the North American plate and South American, is the pacific plate which shares its border with both plates.
You had chosen the African plate it appears, however it only shares a border with the South American plate, not the North American plate.
Hope that helps!
How many dna molecules are in three pair of homologous chromosomes
Answer:
Thus during metaphase of mitosis, each chromosome (i.e., each chromatid pair) will contain two molecules
Explanation:
double stranded DNA (one molecule per sister chromatid). The following diagram depicts the behavior of one homologous pair of chromosomes during mitosis.
Six DNA molecules are there in three pairs of homologous chromosomes. This is because each homologous chromosome will contain two molecules of double-stranded DNA.
What do you mean by Homologous chromosomes?Homologous chromosomes may be defined as two chromosomes of the same length, position, and structure one inherited from the father's side and the other from the mother's side.
The amount of genetic material may vary from phase to phase of the cell cycle. But at the time of metaphase during mitosis, each chromosome will possess two molecules of DNA.
Therefore, Six DNA molecules are there in three pairs of homologous chromosomes.
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What happens when carbon dioxide from the atmosphere dissolves in seawater.
Answer:
When carbon dioxide dissolves in seawater, most of it becomes bicarbonate ions and hydrogen ions. This increase in hydrogen ions is what decreases the pH. In addition, some of the hydrogen combines with carbonate to form more bicarbonate, decreasing the concentration of carbonate in seawater.
When carbon dioxide dissolves in seawater, most of it becomes bicarbonate ions and hydrogen ions. This increase in hydrogen ions is what decreases the pH.
When carbon dioxide dissolves from the air into the ocean?The ocean takes up carbon dioxide through photosynthesis by plant-like organisms carbon dioxide dissolves in water. It reacts with seawater, creating carbonic acid.
Thus, it becomes bicarbonate ions and hydrogen ions. This increase in hydrogen ions is what decreases the pH.
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Which animals are cold-blooded, breathe with lungs, most lay eggs, although in some the eggs hatch inside the female, and have scales or plates? question 17 options: fish reptiles mammals amphibians
Answer:
Fish is the answer
Explanation:
Tell me if I’m wrong or right, it just makes the most sense.
Also this is my first brainless answer!
According to the given information, the animals belong to reptiles.
What are the characteristics of reptiles?The class reptiles are cold-blooded animals which means that the temperature of their body changes according to the surrounding temperature.They mostly lay eggs and in some cases, the eggs are hatched by the females inside the water.Their body has scales or plates to protect themselves from predators. They live on land and in water for some time and respire using their lungs.Thus, the animals belong to reptiles.
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An animal is born with a random mutation that results in larger than normal ears for its species. As a result, the animal is able to hunt both small and large prey.
How can this mutation be best described?
vive increases
What’s the answer
You already selected it! It's a beneficial effect since the animal's ability to survive increases! :)
In which procedure is 70 to 85% of the stomach removed and the rest stapled to create a vertical tube-shaped stomach with limited capacity?
The procedure in which 70 to 85% of the stomach is removed and the remainder stapled together to create a vertical tube-shaped stomach with limited capacity. The name of this procedure is bariatric surgery.
What is the purpose of bariatric surgery?Bariatric surgery is a procedure indicated to treat cases of severe obesity. It became known as "stomach reduction" because it changes the organ's original shape and reduces its ability to receive food, making it difficult to absorb an exaggerated number of calories.
With this information, we can conclude that the procedure in which 70 to 85% of the stomach is removed and the remainder stapled together to create a vertical tube-shaped stomach with limited capacity. The name of this procedure is bariatric surgery.
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how does fern get oxygen
Answer:
Ferns get oxygen through photosynthesis through their leaves.
Explanation:
Plants release oxygen during the day in the presence of natural light through the process of photosynthesis.
Binomial nomenclature is important in the classification of organisms because... question 3 options: it's a scientific name. it's more specific than a common name. it has a two part system with italics and a capital genus and lowercase species. it is recognized by scientists everywhere no matter where they're from.
Binomial nomenclature is important in the classification of organisms because it is recognized by scientists everywhere no matter where they're from.
How is binomial nomenclature used to identify organisms?“Binomial nomenclature is the biological system of naming the organisms in which the name is organised of two words, where, the first word indicates the genus and the second term indicates the species of the organism.
Thus, it is recognized by scientists everywhere no matter where they're from
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Which of these sources would be most appropriate to use for a research project investigating the effects of antibiotics on the disease-causing organism, E. coli?
The Evening Report - a national television news program
The Daily News - a local newspaper
The World Today - a weekly magazine of important events
The Journal of Bacteriology - a national professional journal
The Journal of Bacteriology - a national professional journal would be most appropriate to use for a research project investigating the effects of antibiotics.
What is a Journal?This is defined as a newspaper or magazine that deals with a particular subject or professional activity.
Option D was chosen as the most appropriate choice because the journal deals with Bacteriology which is related to effects of antibiotics on pathogens.
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Why is carpolestes a prime candidate among plesiadapiforms to be a euprimate ancestor?.
Answer:
Why is Carpolestes a prime candidate among plesiadapiforms to be a Euprimate ancestor? It had an opposable thumb. It had a nail instead of a claw on its first foot digit.
It had an opposable thumb. Its first foot finger had a nail rather than a claw. Plesiadapiforms were previously thought to be extinct members of the order Primates.
What is the Plesiadapiforms?Carpholites has a two-chambered auditory bulla, like Tarsius, which distinguishes it from early EU primates and all other known Plesiadapiforms.Plesiadapiforms are primitive primates, which means they lacked some primate characteristics while exhibiting others. Plesiadapiforms means "nearly adapiform," and refers to Plesiadapiforms that resemble some adapiforms (or adapoids; later-appearing species).Plesiadapiforms were on a much lower evolutionary stage than modern primates, possibly comparable to living tree-shrews despite sharing some skeleton traits. Plesiadapiforms first appear in the fossil record between 65 and 55 million years ago, though many had become extinct by the Eocene. They were possibly the first mammals to have finger nails instead of claws.To learn more about Plesiadapiforms, refer to:
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