Answers
Related Questions
What part of a fish creates balance and helps with escape and predation?
Answers
In his analysis of different species’ DNA, E.Chargaff discovered the base-pairing rules of DNA.
1.) Chargaff’s rules state: The amount of adenine is equal to ? and the amount of cytosine is equal to ? .
2.) if a sample of jellyfish DNA is 14% cyotsine, approximately how much adenine would there be in that same sample? Show your work.
Answers
Answer:
1. Thymine, Guanine
2. 36% Adenine
Explanation:
1. Edwin Chargaff, who proposed the complementary base pairing rule, stated in his rule that the amount of purine bases (Adenine and Guanine) is equal to the amount of Pyrimidine bases (Cytosine and Thymine). This means that, in a DNA molecule, the amount of adenine is always equal to Thymine (A=T) and the amount of Cytosine is equal to Guanine (G=C).
Also, the total amount of the four nucleotide bases that make up a DNA molecule is equal to 1 or 100% i.e. A+T+G+C= 100%
2. Based on the rule above, if a sample of jelly fish DNA contains 14% Cytosine, the amount of its complementary pair (Guanine) will also be 14%.
Hence, Cytosine and Guanine will collectively occupy 14+14=28% of the DNA.
To find the amount of the other two bases i.e. Adenine and Thymine, we subtract 28% from 100%
That is, 100 - 28 = 72%
If both Adenine and Thymine contains 72% and each must be equal, we divide 72% by 2 to get the amount of each.
Hence, 72/2 = 36% of Adenine and 36% of Thymine.
According to the question, Adenine will contain 36% in the Jellyfish DNA.
Explain how the percentages of nitrogen, oxygen and carbon dioxide in the Earth’s atmosphere today have changed from the Earth’s early atmosphere.
Answers
Explanation:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
Earth has its own atmosphere which is made up of various gaseous such as carbon dioxide, water vapour, oxygen and etc
There are various activities that change the composition of the earth atmosphere.
DeforestationExcessive use of fossils fuelEmission of carbon dioxideThe earth atmosphere has 78 per cent nitrogen, 21 per cent oxygen, 0.9 per cent argon, and 0.1 per cent other gases.
During the activities perform as mentioned the composition of the earth is changed and the amount of carbon dioxide is increased by 0.01 %.
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Soil at the shore of Lake Erie in Pennsylvania has a high sand and gravel content. Which of the following is a characteristic of this type of soil?
A) extreme acidity
B) rapid water drainage
C) extensive producer biomass
D) significant depth before hitting bedrock
Answers
Answer:
rapid water drainage
Explanation:
These are example of granular (sand and gravel)soils.They are more permeable to water, and therefore can not retain water molecules.They are non-cohesive soil,with high strength and capacity to withstand slope.
High acidity is not a characteristic feature of soil with sand and gravel.In addition, such soil lacks biomass therefore can not support plant growth. The soil type is not a yardstick to determine the dept of soil type.Consequently, rapid water loss due to porosity is the best option.
Which phrase describes short-term environmental changes?
occur over thousands to millions of years
occur over minutes to hundreds of years
have little to no impact on organisms
are slow-building and offer advanced warning
Intro
Done
ous Activity
Answers
Answer:
Occur over minutes to hundreds of years
Explanation:
Answer:
Answer:
Occur over minutes to hundreds of years
Explanation:
What information is lost if only scientific results are reported and the historical context
is not considered? Is this lost information relevant if the science gets done?||
Answers
Answer: Literature review
Explanation:
The literature review is important to cite the previous information about research conducted earlier and taken as a reference for the present study. It may contain the principle, methodology and other information which can be used in the current research. The literature review makes the information of the current research valid and authentic, thus it is considered valid.
True-breeding pea plants have either spherical seeds or dented seeds with spherical being the dominant phenotype. A genetic cross between two F1-hybrid pea plants for spherical seeds will yield what percent of plants with a heterozygous genotype in the F2 generation?
A. 0%
B. 25%
C. 50%
D. 75%
Answers
A genetic cross between two F1-hybrid pea plants for spherical seeds will yield 50% of plants with a heterozygous genotype in the F2 generation. Thus, the correct option for this question is C.
What is a Genotype?A genotype may be defined as the ultimate combination of alleles of those genes that are subsequently selected for specific study in order to reveal some genetic facts and traits of an individual.
According to the question, the two F1-hybrid pea plants for spherical seeds have the genotype of Rr and when these two genotypes are crossed with one another, it produces offspring with the genotypes RR, Rr, Rr, and rr. In this set of offspring, 2 of them have heterozygous genotypes.
Therefore, a genetic cross between two F1-hybrid pea plants for spherical seeds will yield 50% of plants with a heterozygous genotype in the F2 generation. Thus, the correct option for this question is C.
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Question 3
10 pts
How do adaptations benefit the organism? Select all that apply.
Find food
Catch prey
Survive harsh weather
Hide
Avoid predators
Answers
Answer:
adaptations help the organsims to survive harsh weather, to avoid predators, to hide.
Members of which of the following phyla have the most species that parasitize humans?
A. Porifera
B. Mollusca
C. Echinodermata
D. Platyhelminthes
Answers
Answer:
Platyhelminthes
Explanation:
How is climate change like a game of Tetris? How can kids stop climate change? What are some of the ways that you will help?
Answers
Answer:
Climate change is like a game of Tetris because a lot of little things add up to it. you don't fill up the screen in Tetris in one move, small things build up over time.
Kids can stop climate change by being environmentally conscious and making an effort to reduce the size of their carbon footprints. They can choose to take public transportation instead of driving to school, they can take colder or shorter showers, and they can reduce their waste by using reusable bags at the grocery store or reusable cups instead of throw aways.
Some of the ways that i will help is by bringing my own reusable cup next time i get a soda at the gas station and taking shorter showers.
Explanation:
you can say whatever you want for the last part i know gas station dews aren't everyone's thing.
Wassup so who want to help a gangsta out
Answers
Answer:
bpm (electrocardiograph), seconds (clock), meters (not sure), Fahrenheit/Celsius (thermometer), liters (beaker)
Explanation:
which of the following cannot become plasma cells?
A. activated b cells phagocytes
B. activated b cells phagocytes and memory t cells
C. activated b cells lymphocytes
D. b cells
E. memory t cells
F. none
G. memory b cells
Answers
Answer: memory t cells
Explanation:
body tissues are system of specialized cells that carry out common function. How are proteins and body cells related?
Answers
Answer:
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs. ... There are 20 different types of amino acids that can be combined to make a protein. Both do most the work.
Explanation:
Answer:
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs. ... There are 20 different types of amino acids that can be combined to make a protein. Both do most the work.
Explanation:
make a claim about how related tuna, turtles, and chimpanzees are to humans. use evidence to support the claim and explain your reasoning
Answers
Answer:
Animals that form part of the tree of life
Explanation:
The tree of life is a diagram used in evolutionary biology to organize life into categories and to classify different species. In this case, tuna, turtles, and chimpanzees and humans are species that can be grouped in the animal category, within the vertebrates group (chordate phylum), being it the most inclusive level at which all these species belong.
Which of these is not a natural earth cycle?
rock
water
carbon
oil
Answers
Answer:
The answer is oil .
Explanation:
Oil is not a natural Earth cycle.
(Correct me if I am wrong)
A trait can also be called a/an
Answers
Answer:
sort of personality
Explanation:
it just makes sense
phenotype that is the answer.
Great Elephant Census
Answers
Answer:
"The Great Elephant Census (the largest wildlife survey in history) was an African-wide census designed to provide accurate data about the number and distribution of African elephants by using standardized aerial surveys of hundreds of thousands of square miles or terrain in Africa.
Explanation:
"The final results from Great Elephant Census show 352,271 African savanna elephants in 18 countries, down 30% in seven years"
Global phytoplankton levels
a. decrease in the summer and increase in the winter
b. remain the same in the summer and winter
c. increase in the summer and decrease in the winter
Answers
Answer:
sry i still dont know
Explanation:
Select the correct answer.
Kate is studying the transformation from unicellular to multicellular organisms. Which metaphor is the most appropriate to apply to the map of the timeline?
A.
the "food chain"
B.
the "circle of life"
C.
the "tree of life"
D.
the "biological ladder"
Answers
Answer:
Option D, the "biological ladder"
Explanation:
The food chain is the network of organism in which all are dependent on each other for their food, energy source and survival.
The circle of life depicts the time frame starting from origin of a life form till its death and the intermediate stages.
The tree of life basically determines which organism has evolved from which other organisms.
The biological ladder represents the development of species from simple form to a much complex form.
Hence, option D is the right metaphor
Answer:
Explanation:
C
What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?
A. deletion
B. duplication
C. insertion
D. inversion
Answers
Answer:
B croe
Explanation:
Explain the role of co-dominant alleles in human ABO blood groups.
Answers
Answer:
Co-dominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB. Suzanne Hart, Ph.
Explanation:
This cycle uses super-heated water from
underground to give us power
geothermal
solar
nitrogen
oxygen
Answers
_____ causes the body to need increasingly larger amounts of the
drug to get the same effect that was originally produced.
Answers
Explanation:
Drugs have different effects depending on the drug itself, the person taking it and their surroundings. Learn how your body processes drugs and about the short-term and long-term effects. Taking drugs can affect not just your physical and mental health, but your whole life. Just one pill can kill.
Sunlight enables plants to use water and carbon dioxide during photosynthesis to make and store sugar. Any animal that eats the plants can convert the sugar into the energy it needs to move from place to place. Which three types of energy are involved in this example?
Answers
Answer:
Solar energy, Chemical energy and Mechanical energy
Explanation:
Sunlight enables plants to use water and carbon dioxide during photosynthesis to make and store sugar:
The type of energy utilized here is solar energy. The energy from sunlight which is the solar energy is captured by the chlorophyll in plants enabling them use water and carbon dioxide to produce their own food.
Any animal that eats the plants can convert the sugar into the energy it needs to move from place to place.
The energy from the sun which is the solar energy is converted into chemical energy, and the animal that eats this plants gains some of this energy and converts it to mechanical energy, the energy needed to do work: motion energy e.g. moving from place to place.
Answer:
Light energy from sun
Chemical energy
Kinetic energy.
Explanation:
Light energy is gotten from sunlight which is use with carbondioxide and water to produce sugars.
The chemical energy is the substance that undergo chemical reaction to produce another substance. The light energy cause a chemical reaction that breaks carbondioxide molecules and water to produce sugars.
After the animal eat the food, it's get chemical energy and it's is converted to kinetic energy for movement.
Kinetic energy is the energy posses by a body in motion.
I require assistance. Oil is a fossil fuel used to run cars, heat up homes, and produce electricity. Oil can be removed from the bottom of the ocean through drilling. Drilling machines dig deep down into the Earth. When oil is found, pipes carry it to the surface. Sometimes, accidents happen that cause the oil to spill into the oceans. The oil can not only kill marine organisms, but when it reaches the surface of the water, some chemicals evaporate, become part of the atmosphere, and pollute the air.
Based on the passage, which resources and organisms are affected by oil spills? Select three options.
A. air
B. land
C. water
D. birds in the air
E. trees on land
F. organisms in water
Answers
Answer:
(A) air (C) water (F) organisms in water. I did it and picked (A) (C) and (F) and they were correct
Explanation:
give brainliest please
hope it helps
Many resources are affected by oil spills like air water land and the organisms in water are also affected.
What is an oil spill?When a liquid petroleum hydrocarbon is discharged into the environment, particularly the marine environment due to human activities, it is known as an oil spill.
What resources are affected by the oil spill?Water: It forms a layer over the water. It causes the death of marine organisms. It releases toxic components.Air: petroleum is made up of many components. Some are light and toxic like benzene, xylene, toluene and ethylbenzene. These are released into the air and pollute itLand: When spilled on land it prevents the absorption of water in the soil and hence affects the flora.What organisms are affected by the spill?Marine organisms are affected by the oil spill. It has a toxic and lethal effect on organisms.The insulating ability of fur-bearing mammals is affected.livers become large and the rate of respiration changes.the fin of fishes are eroded.reproduction is also adversely affected.To learn more about the oil spills and petroleum here,
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In a population of spiders there are three different sizes: small, medium, and large. ---The large spiders are easily seen by predators. ---Small spiders have a difficult time finding food. What will most likely happen to this population of spiders after many generations?
Answers
Answer: Over time the medium spiders will be most common out of the three.
Explanation: Because of natural selection the large and small spiders wil die leaving more medium spiders alive. So now the medium spiders can reproduce and make more medium spiders so there will be much more medium spiders compared the the small and large ones.
What mineral is in a salt shaker?
Answers
Answer: magnesium
Explanation:
Answer:
salt maybe
Explanation:magnesium is not the answer
Uranus is unique because it is the only planet
discovered by mathematical calculations
that rotates on its side
with an atmosphere
with rings
Answers
Answer:
rotates on it's side
Explanation:
4 pts
The United States banned chlorofluorocarbons in aerosol cans. These actions became a
global movement and let to an international agreement on the ban. Which environmental
concern were governments directly addressing by eliminating the use of
chlorofluorocarbons in aerosol cans?
Tim
Atte
40
Dependency of fossil fuels.
Melting of icecaps.
Salinity levels in the ocean.
Levels of stratospheric ozone.
Previous
Next >
Answers
Answer:
Impact as greenhouse gases
CFCs were phased out via the Montreal Protocol due to their part in ozone depletion. However, the atmospheric impacts of CFCs are not limited to their role as ozone-depleting chemicals.
Explanation:
In this lesson, you learned about the relationship between hypotheses, theories, and laws. You also learned how to identify examples of theories and laws, and to explain how theories may change over time. In this assignment, you will apply your knowledge of hypotheses, theories, and laws in a variety of tasks.
Answers
Answer:
beetlejuice beetlejuice beetlejuice
Explanation:
You could use a buddy
Don't you want a pal?
(Yes I do! Yes I do!)
Girl, the way I see it
Your daddy should be leavin'
And you should stick around
What?
Nothing
So, Lydia, don't end yourself
Defend yourself
Daddy is the one you should maim
Together we'll exterminate, assassinate
No
The finer points can wait
But first you gotta say my name
Go ahead and jump but that won't stop him
Here you got a solid plan B option
I can bring your daddy so much pain
All you gotta do is say my name
Girl, just say it three times in a row
Then you won't believe how far I'll go
I'm on the bench, but coach
Just put me in the game
All you gotta do is say my name
I don't know your name
Well, I can't say it
How 'bout a game of charades?
Yes, let's play it
Two words
Right
Second word
Uh-huh
Drink?
No
Beverage?
No
Wine?
No
Juice?
Yes
Okay
First word
Okay
Bug?
No
Ant?
Close, but no
Beetle?
Yes
Betelgeuse?
Wow, I'm impressed
And all you gotta do is say my name three times
Three times in a row it must be spoken
Unbroken
Ready?
Yeah
Okay, go
Betelgeuse
Yes
Betelgeuse
Yes
Beeeee
Oh, oh, this is gonna be so good
'Cause
What?
You're so smart
A stand-up bro
I'll think about your offer
Let you know
But I prefer my chances down below
Betelgeuse
Yes
Betelgeuse
Yes
Being young and female doesn't mean that I'm an easy mark
I've been swimming with piranhas
I don't need a shark
Yes, life sucks
But not that much
Okay, Betelgeuse
Betelgeuse
Be a doll and spare the lecture
I'm offering you a full-time specter
Are you any good?
You bet'cha
Trust me, baby
I just met ya
Really it's a flattering offer
Don't you wanna see dad suffer?
I think I'd rather just jump off
No
I may be suicidal
But Betelgeuse, it's not as if I've lost my mind
So, playing hardball, huh?
You are tougher than you look
Just wanna make sure I know who I'm working with
Got any references?
Lydia, there you are
Are you alright?
A-Dog, B-Town, my old pals
You get away from her
Lydia, this is a dangerously unstable individual
Betelgeuse is smexy
Betelgeuse is smart
BJ is a graduate of Juilliard!
He can help
We found him on Yelp
Our troubles all ended on the day that we befriended him
Every word is the truth
Betelgeuse, Betelgeuse, Betelgeuse
What the heck was that?
So violating
There you go, kid
Couple of five-star reviews
What was that?
That was possession
Any ghost can do that in less than one lesson
Any ghost?
Pretty much, any ghost'll do sure
Then, Betelgeuse, what do I need you for?
Woah, woah, woah woah woah
Hold up, hold up, girl, I'm your pal
They're sweet, but I'm a demon straight from Hell
I know, I went a little hard on the sell
But we're BF-F-F-F's forever
Agh
Lydia
What? He was already dead
And you heard what he said, any ghost can do that possession stuff
We don't need that demon
The three of us alone can wreck dad's evening
Together we can make a grown man weep
Guys, I got a dinner date to keep
Okay, so what's the plan?
Teach dad a lesson
He's gonna freak when we possess him
So he wants the perfect daughter
I'll lead that lamb to slaughter
Yeah, I got game
I'm gonna make him say my name
(Make him say your name)
I'll make him say my name
(Make him say your name)
I'll make him say my name
(Make him say your name)
Not running away
I'll make him say my name
Answer:
no otpions
real
Explanation:
scoopi doopi doo where r yuu we gonna slov a misery