Answers
Related Questions
How do some nucleotide sequences in DNA get copied into RNA when DNA and RNA have different bases. For example, how is the sequence TGAC in DNA copied to the RNA when RNA does not has Thymine.
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Answer:
In RNA the base thymine is essencially replaced by the base uracil. So the sequence TGAC in DNA would get copied into RNA as ACUG.
Adenine pairs with uracil in RNA like it pairs with thymine in DNA
Explanation:
Which two factors have likely influenced global temperatures the most?
A: solar radiation
B: volcanic activity
C: agricultural activities
D: fossil fuel consumption
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Answer:
B: volcanic activity
D: fossil fuel consumption
Explanation:
Fossil fuel consumption and volcanic activity are the two factors that has a great influenced on the global temperatures. Fossil fuel consumption is a human activity and volcanic activity both releases carbondioxide gas while burning. This carbondioxide gas is a greenhouse gas which block the reflected solar radiation and leads to increase in the surface temperature of the earth.
13.
One factor that explains an increase in Earth's temperature is an increase in the amount of energy that Earth receives. Which of the following would result in an increase in energy received by the Earth?
A. an increase in ocean circulation
B. O an increase in solar output
c. a volcanic eruption with a lot of ash
Da shift in tectonic plates
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Answers
Because he will receive more solar energy
How does contour plowing in farming help to prevent pollution?
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Answer:
Contour plowing is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in livestock waste. Contour plowing is used to make insecticides less toxic
Explanation:
Contour plowing is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in livestock waste. Contour plowing is used to make insecticides less toxic
Contour plowing is a farming practice which is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in the livestock waste.
What is Contour plowing?Contour plowing is a farming practice which creates contour lines in the soil, these lines are placed perpendicular to the slope of the line, for this reason, they are a method which is used to prevent soil erosion and retain water in soil.
Contour farming is used to reduce erosion and sediment pollution because it helps in retaining soil moisture and water content. Contour lines favor infiltration of rainwater as water run-off is stopped through this.
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what determines the physical change form of a substance
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Answer:
color, shape size etc
Explanation:
What is the term for the absolute worst type of inflation, where prices skyrocket out of control and a nation's economy becomes at risk of collapse?
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Answer:
Hyperinflation is a term to describe rapid, excessive, and out-of-control general price increases in an economy.
Explanation:
Describe the reproductive system in humans.
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Answer:
The human reproductive system includes the male reproductive system which functions to produce and deposit sperm; and the female reproductive system which functions to produce egg cells, and to protect and nourish the fetus until birth. Humans have a high level of sexual differentiation.#carryonlearning
A strain of a cereal grain can be either dark tan, medium-dark tan, medium tan, light tan, or cream colored. When a dark tan and a cream plant are crossed, all F1 are medium tan. The F2 are distributed in a ratio of 1:4:6:4:1 from darkest to lightest. How many genes are involved in this coloration?
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Answer:
The correct answer is - 2 genes.
Explanation:
The number of genes involved in the coloration of the strain of cereal grain, could be either dark tan, medium-dark tan, medium tan, light tan, or cream-colored if all F1 are medium tan when crossed a dark tan crossed with cream-colored, can be calculated as follow:
suppose there are only two gene - TT dominant over tt and CC dominant over cc
then the cross would be - RRCC - rrcc
gametes - RC and rc
Cross F1: RrCc
Self cross in F2:
offspring by Punnet cross are:
RRCC -->1/16
RRCc, RrCC .---> 4/16
RrCc, RRcc, rrCC--->6/16
rrCc, Rrcc--->4/16
rrcc ----> 1/16
thus, the correct answer is 2 genes
Name and describe the 4 types of tissue found in an animal’s body
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Answer:
connective tissue, epithelial tissue, muscle tissue, nervous tissue
Explanation:
epithelial tissues act as coverings controlling the movement of materials across the surface
connective tissues integrates the various parts of the body and provides support and protection to organs
muscle tissues allows the body to move
nervous tissues propagate information
Each of the following is a function of the liver, except A. inactivation of toxins. B. synthesis of plasma proteins. C. production of digestive enzymes. D. synthesis and secretion of bile.
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Each of the following is a function of the liver, except production of digestive enzymes. The correct option is C.
What are the functions of liver?The liver is the largest gland in the body and is located in the right upper quadrant of the abdominal cavity. It has over 500 essential functions. They include: Detoxification and purification - The liver is responsible for filtering toxins and harmful substances from the blood, preventing them from entering the bloodstream and harming other organs.
The liver is responsible for synthesizing many important plasma proteins, including albumin and clotting factors. The liver secretes bile, which aids in the digestion of fats and the absorption of fat-soluble vitamins.
The liver stores many essential nutrients, including vitamins and minerals. The liver is responsible for storing glucose as glycogen and regulating glucose levels in the bloodstream.
Therefore, each of the following is a function of the liver, except production of digestive enzymes.
Thus, the correct option is C.
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Is it true or false that plants and animals are made of cells
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Answer:
True
Explanation:
Answer:
True I think
Explanation:
Hope this helps. Tell me if I'm wrong
How do I know if a girl is mad at me? (over text)
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Okay, I am a girl so it will be easy to explain.
If a girl is upset at you through text then here is 10 signs to help you:
1. She puts more than one dot next to her texts.
2. She says 'Whatever' when you say something nice to her.
3. She says 'okay' when you ask a question on where to go and you pick it.
4. She doesn't text back within two days.
5. She sends you a gif or a picture of something to change the subject.
6. She decides to text 'What are you doing' as her first text, her thinking that you done something wrong. aka, she doesn't trust you.
7. She tried to change the subject by asking a qiestion or just doesn't answer you and sends a picture of a random thing in her room.
8. She does all caps when you ask her something sensitive.
9. She puts '....' as her answer when you hit one of her nerves.
10. She deletes and blocks you off anything you and her have contact with.
I hope this helps you, mate. I hope you and your girl friend have a better relationship! :)
What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object
decreasing the positive charge of the positively charged object and decreasing the negative charge of the
negatively charged object
increasing the distance between the positively charged object and the negatively charged object
maintaining the distance between the positively charged object and the negatively charged object
Answers
Answer:
A
Explanation:
Answer:
A, increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
Explanation:
EDGE 2021
Give three examples of what happens with unbalanced forces? I give Brainly
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For example:
Hanging objects. The forces on this hanging crate are equal in size but act in opposite directions.
Floating in water. Objects float in water when their weight is balanced by the upthrust from the water.
Standing on the ground.
Please answer quickly
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Answer:
which one is it 9 42 or 12?
Which Natural Step System Goal is being broken here?
Scenario: We are using petroleum from deep underground at a rate much faster
than the earth can create more petroleum.
System Goal 1
System Goal 4
System Goal 3
System Goal 2
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Answer:
The Natural Step Framework is a methodology for successful organisational planning. It is based on systems thinking,
recognizing that what happens in one part of a system affects every other part. We begin by understanding the broader system
within which problems occur and the principles governing success within that system These principles for success then
provide a practical set of design criteria that can be used to direct social, environmental and economic actions, developing
effective, durable solutions to the environmental, social and economic issues of the new century.
Explanation:
In a population of 400 salamanders, some individuals have long toes and others have short toes. This phenotypic difference is due to a single gene with dominant and recessive alleles, T and t, where T confers long toes. If the toe length gene is in Hardy Weinberg equilibrium, and 256 individuals have short toes, how many individuals are heterozygous at the toe length locus?
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Solution :
Total number of salamanders or population of salamanders is given = 400
Out of theses salamanders, some have long toes while others have a short toes.
Number of individuals of salamanders having short toes = 256
The short toe individuals [tex]$(q^2) = 256/400$[/tex]
Therefore, [tex]$q=\sqrt{256/400}$[/tex]
= 0.8
p + q = 1
∴ p = 1 - q
= 1 - 0.8
= 0.2
The number of the heterozygous individuals = (2pq x 400)
= ( 2 x 0.2 x 0.8 ) x 400
= 0.32 x 400
= 128
how to calculate average molarity
Answers
Answer:
To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.
Explanation:
The molarity (M) of a solution is the number of moles of solute dissolved in one liter of solution. To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.
the fertilization of ovules from plant Q by pollen from plant R results in the productions of seeds. What percent of the genes in each offspring's chloroplasts wioll have been inherited from plant R
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Answer:
The correct answer is - zero or 0%.
Explanation:
The fertilization in flowering plants takes place by fusing the pollen of one plant or flower with the ovum of another plant or flower of the same species normally and form a zygote. The zygote gets an equal amount of genetic material from both parent plants by the process f exchange of the genetic material.
The ovum or the egg cell of the plant is considered as the mother and the mother is responsible for the chloroplast And mitochondria of the progeny so in this case, the ovum and egg cell comes from the only plant Q thus, the percentage of chloroplast genes provided via Plant R is 0%.
Can someone tell me if this is correct
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Answer:
Normal Eyes = 75%
Heart eyes = 25%
Explanation:
3 of the offspring in that punnet square have at least 1 dominant allele. And if an offspring has at least 1 dominant allele then it should have the dominant trait( which is normal eyes ). But if it only contains recessive alleles then it would have the recessive trait (which in this case would be heart eyes).
3) An astronomer observes four stars from two different locations on Earth. For which star will the
astronomer observe the greatest parallax?
the star that is 3.4 AU from Earth
the star that is 4.2 AU from Earth
the star that is 6.8 AU from Earth
the star that is 10.4 AU from Earth
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Answer:
An astronomer observes four stars from two different locations on Earth. Will the astronomer observe the greater parallax for a star that is closer to Earth or farther from Earth? the greater parallax for a star that is closer from Earth.
Explanation:
i hope u read to found the answer
Factorise completely pq - q?
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Explanation:
q(p-1) is the factorization of pq- q.
The Barton Springs salamander is an endangered species found only in a single spring in the city of Austin, Texas. There is growing concern that a chemical spill on a nearby freeway could pollute the spring and wipe out the species. To provide a source of salamanders to repopulate the spring in the event of such a catastrophe, a proposal has been made to establish a captive breeding population of the salamander in a local zoo. Suppose you are asked to provide a plan for establishing this captive breeding population, with the goal of maintaining as much of the genetic variation of the species as possible in the captive population.
What factors are likely to lead to a loss of genetic variation in the captive population?
a. increased rate of mutation
b. a founder effect
c. reduced genetic drift over time
d. a lack of inbreeding
What strategy would likely be effective in mitigating the loss of genetic variation in the captive population? a. keeping the sex ratio as close to 50:50 as possible
b. stopping gene flow to and from the captive population
c. regularly mating individuals that are related
d. keeping the captive population as small as possible
Answers
Answer:
1. b. a founder effect
2. a. keeping the sex ratio as close to 50:50 as possible
Explanation:
The founder effect is a phenomenon that occurs when a small subset of individuals split from a larger population in order to establish a new colony. The founder effect is known to cause a reduction in genetic variation of the colony due to genetic drift, i.e., due to the random sampling of the individuals that form the colony (which doesn't reflect the total genetic diversity of the original population). Moreover, the sex ratio refers to the proportion of males to females in a population. When establishing a captive population, it is recommended to maintain a sex ratio as close to 50:50 as possible because it reduces inbreeding, and thereby mitigating the loss of genetic variation. In some populations, it has been proposed that a 50:50 sex-ratio might also increase the competition between males, which is believed to be fundamental for maintaining a healthy genetic structure of the population.
You are a researcher interested in a rare, highly endangered bird species that lives in a very remote area of the Amazonian rainforest. Almost nothing is currently known about this species’ diet, behavior, life-span, breeding system, or its interactions with other species. Use your knowledge of the definition of ecology, the scales at which ecological research is conducted, and experimental design.
1. Which ecological level (or levels) would you focus on in your research? Justify why you would choose this level (or levels), and explain why you would not choose the others.
2. Would you use an observational, experimental, or modeling approach to study this rare bird species? Why would the approach you chose be a better choice than the others for your study?
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Answer:
- Ecological levels to consider in this study: organism, population and community
- Approach: I would use an observational approach to study this bird species
Explanation:
The levels of the ecological organization include the organism, population, community, ecosystem, and biosphere (from simplest to most complex). In this exploratory study, it is imperative to consider: 1-morphological, physiological and behavioral adaptations of the bird species (i.e., organismal-level), 2- size/density/structure of the bird population (i.e., population-level), and 3-interactions between bird population and other populations (i.e., community-level). The higher ecological levels, i.e., ecosystem-level (relationships between the community and abiotic factors ) and biosphere-level (biosphere = planet Earth), can be in this case disregarded because this study is centered on a focus bird species. Moreover, it is expected to apply an observational strategy because nothing is currently known about the focus bird species. The experimental and modeling approaches seem more suitable to test a particular hypothesis being discussed (it is not the case for this study).
Rinderpest (a virus) has high mortality in wildebeest (a kind of herbivore), especially in young animals. From the early 1960s, after the elimination of a virus called rinderpest, the wildebeest population has increased dramatically from 1958 to 1978. The elimination of rinderpest impacted the wildebeest population. What type of factor is rinderpest
Answers
Answer:
density-dependent, top-down factor
Explanation:
In biology, limiting factors are resources and other conditions in the environment whose presence/availability limit the population growth rate. Density-dependent factors refer to the conditions whose effects on the size/growth of the population vary depending on the population density. Some examples of density-dependent factors include diseases, competition, and predation, etc. These factors can exhibit a positive or negative correlation with the population size. Moreover, bottom-up population control (species limitation by resources) refers to limitations placed by resources allowing growth (e.g., food source or habitat), while top-down population control (limitation by enemies), refers to limitations placed by factors that control the death rate in the population (e.g., predation or diseases).
There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce allele b. What is the gene frequency of allele b in the population if the population of Pakicetus reaches 100,000
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Answer: Hello your question is incomplete below is the complete question
Let’s look at a different gene locus, we’ll call it B. The normal, wild type, the population was 100% BB. There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce allele b. What is the gene frequency of allele b in the population if the population of Pakicetus reaches 100,000
answer : ≈ 1
Explanation:
Determine the Gene frequency of allele b
Population = 100,000
There are 150 Pakicetus in population i.e. 300 alleles at locus B
hence the frequency of b = 1/300 = 0.33%
Increase in population does not affect frequency of b ( HW equilibrium )
therefore the Gene frequency of allele b
= 0.33% * 0.33% * 100000 = 1.08
≈ 1
Explain the effect of the fungi on the growth of the seedlings after they emerge.
Answers
Answer:
The most common pattern is where the cotyledons are raised above ground as the seedling emerges. The seedling forms a hypocotyl hook that pushes through the soil. Once the seedling reaches the light, the hook opens to create a straight seedling. ... The cotyledons function as the repository for food reserves in the seed.
Explanation:
Answer:
Under certain environmental conditions, damping off pathogens can cause root rot or crown rot in mature plants.
What is the answer to number 1
Answers
TTT GCC AGT is the complimentary strand
Explanation:
t = a
c = g
4. Which was a stronger nuclear blast?
a. The Hiroshima "Little Boy" bomb, 15 kilotons
b. The Trinity test explosion, 21 kilotons
c. The Castle Bravo explosion, 15 megatons
d. The 100-ton test, 0.1 kilotons
Answers
Answer:
I think it would be the Castle bravo explosion
Explanation:
Castle bravo was about 1,000 times more powerful than each of the atomic bombs that were dropping Hiroshima and nakazaki during world war II and I'm guessing in megaton is stronger than killotons
100 POINTS..!!
WHAT IS ANTI NUCLEAR ??
PUT 3 FACTS ABOUT ANTI NUCLEAR ENERGY.
ILL GIVE BRIANLIEST.!
Answers
Antinuclear antibodies are autoantibodies that bind to contents of the cell nucleus. In normal individuals, the immune system produces antibodies to foreign proteins but not to human proteins. In some cases, antibodies to human antigens are produced.
facts are
1. NUCLEAR POWER PLANTS PRODUCED 790 BILLION KILOWATT HOURS OF ELECTRICITY IN 2019.
2. NUCLEAR POWER PROVIDES 52% OF AMERICA’S CLEAN ENERGY.
3. NUCLEAR ENERGY IS THE MOST RELIABLE ENERGY SOURCE IN AMERICA
NUCLEAR POWER PROVIDES 52% OF AMERICA'S CLEAN ENERGY. ...
NUCLEAR ENERGY IS THE MOST RELIABLE ENERGY SOURCE IN AMERICA. ...