Answer:
They take gravity
Explanation:
A researcher measured the temperature at which two different samples of double-stranded DNA denature (separate into single strands) Sample 1 denatured at a significantly lower temperature
than sample 2 did. Based on the data, the researcher claims that the DNA in sample 2 is composed of a higher percentage of guanine and cytosine than the DNA in sample Ils
Which of the following best supports the researcher's claim?
Sube
The bonds between guanine and cytosine are covalent bonds, which require more energy to disrupt than those between adenine and thymine
B
Guanine cytosine pairs denature at a higher temperature because they have more hydrogen bonds between them than adenine-thymine pairs do
с
Aderine thyminepalis require less energy to separate because adenine and thymine are both single-ring bases
D
Guinine cytosine pas require more energy to separate because one is purine and one is a pyrimidine
Answer:
The correct option is b
Explanation:
There are four nitrogenous bases that can be found in a DNA molecule; Adenine, Thymine, Guanine and Cytosine. The adenine on one strand can only bond (hydrogen bond) with the thymine on the complimentary strand (to form base pair) and vice versa while the guanine on one strand can only bond (hydrogen bond) with the cytosine on the complementary strand (to form base pairs) and vice versa.
There are three hydrogen bonds between Guanine and cytosine base pair while there are two hydrogen bonds between adenine and thymine base pair; hence, DNA samples with higher guanine-cytosine base pairs denature at a higher temperature than DNA samples with lower guanine-cytosine base pairs or with more adenine-thymine base pairs. This is because, it requires more energy to break the triple bonds between the guanine-cytosine base pairs than the double bonds of adenine-thymine base pairs.
From the description above, we can deduce that the correct option is b
Answer:
the correct answer is D
Explanation:
i have checked the answer in a flashcard
Which of the following leads to genetic variation in gene pools?
A. gene flow C. mass extinctions
B. isolation D. punctuated equilibrium
Answer:
b
Explanation:
Characteristics of Life (question is in the picture)
Answer:
i think you can add
growth
excretion
responsiveness
movement
reproduction
growth
Explanation:
How can you analyze data using various types of graphs?
(Science)
PLS HELP ME ANSWER THIS AS FAST AS POSSIBLE!!!!
Answer:
Na,
知りません
Explanation:
Answer:
I cant really see the first answer choice clearly but if it says are composed of at least one cell that's the right answer
What is the importance of the main nutrients cycle?
Sky maps show celestial spheres, including constellations.
True
False
Answer:
true
Explanation:
e2020
What is an atom’s atomic number? the number of electrons in an atom the number of neutrons in an atom the number of protons in an atom the number of bonds in an atom
Answer:the number of electrons in an atom the number of neutrons in an atom the number of protons in an atom the number of bonds in an atom
Explanation:
Answer:
the number of protons in an atom
Explanation:
edge2020
Give 2 examples of cholesterols.
Answer:
Burgers, and frys
Explanation:
Both those foods are filled with cholesterol and fat.
HELP
PLEASE GIVE ME 5 REASONS ON WHY IT IS IMPORTANT TO SAVE THE ENVIRONMENT.
PLEASE DON’T COPY FROM WEBSITES WORD FOR WORD
I WILL MARK YOU AS BRAINLIEST
Explanation:
.For the our health because if the environment is saved the we are able to get the fresh air.
.For decreasing global warming because if environment is saved then the pollution is controlled.
.For decreasing deforestation which can control landscape because saving the environment can also be taken as saving trees.
For saving the animals because the habitat of animal is forest which need to be protected by protecting environment.
.For saving the natural resource which are also the reasons of income because it attracts tourists.
The ___________ is an organ directly associated with the _________ and __________ systems.
a. stomach; digestive; reproductive.
b. pancrease; digestive; endocrine.
c. ovary; female reproductive; lymphsatic.
B. Pancreas; Digestive, Endocrine
The pancreas is an organ directly associated with the digestive and Endocrine systems.
What is Endocrine system?A intricate system of glands and organs makes up the endocrine system. Your body's metabolism, energy level, reproduction, growth and development, and response to injury, stress, and mood are all regulated and coordinated by hormones.
The endocrine system is made up of the following components:
The optic chiasm, where the optic nerves behind each eye intersect, and the hypothalamus are both found at the base of the brain. In the center of the brain, beneath the corpus callosum, is where you'll find the pineal body.
Therefore, The pancreas is an organ directly associated with the digestive and Endocrine systems.
To learn more about endocrine system, refer to the link:
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How many significant digits can be found in the value 540?
Answer:
2
Explanation:
NEED HELP DUE TODAY PLZ HELP ME!!!!
I will give brainly!!!!
NOTE: Cells are NOT to scale.
Which of the following statements is true regarding Cells A and B?
Choose 1 answer:
(Choice A)
A
Both Cell A and Cell B are eukaryotic because they have ribosomes.
(Choice B)
B
Cell A is eukaryotic because it has DNA.
(Choice C)
C
Cell B is eukaryotic because it has a nucleus.
(Choice D)
D
Neither Cell A and Cell B are eukaryotic because they have flagella.
cell b is eukaryotic because it has a nucleus
Which element has two energy levels magnesium or carbon?
The sun appears to move from east to west across the sky each day because Earth
Select one:
a. rotates in a clockwise direction.
b. rotates from east to west.
c. rotates from west to east.
d. none of the these.
Answer:
B. Rotates from east to west.
Explanation:
Earth's spin (or rotation) on its axis. Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
look at the highlighted portion of the graph. Which of the following is the best explanation for what is occurring within the population during this time period?
Answer:
It’s a birthrate> death rate
Explanation:
I don’t to be honest I just guessed and got it right
Answer:
birthrate > death rate
Explanation:
determine the range corresponding to the domain 2
for the mapping f(x)=3x+1
Answer:
or, 3x+1=0 or, 1+0=3x or, 1=3x or, x=3-1 or, x=2
Explanation:
You are required to make 10mL of a 0.5M solution of HCl. Your stock solution of HCl is 90M. Using distilled water (dH2O) as a solvent, how much of each component will you need to make the desired final solution?
Answer:
0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
Explanation:
From the dilution equation:
Initial molarity (m1) x initial volume (v1) = final molarity (m2) x final volume (v2).
In this case, m1 = 90 M, v1 = ?, m2 = 0.5 M, and v2 = 10 mL
v1 = m2 x v2/ m1 = 0.5 x 0.01/90 = 0.0000556 L
v1 = 0.0556 mL
This means that the initial volume of 90 M HCl to be taken is 0.0556 mL. Since the final volume to be prepared is 10 mL,
10 - 0.0556 = 9.944 mL
Hence, 0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
what similarities would you expect to find in highly resilient ecosystems
Answer and explanation:
An ecosystem that is highly resilient is one that has the capacity to resist subjected damage by maintaining its normal patterns of biomass production and the cycling of nutrients. This damage can be anything from fires to deforestation.
A highly resilient ecosystem can be expected to adapt well to change, sometimes permanently, to survive indefinitely. For an ecosystem to be resilient, it has to be flexible and be able to adjust to uncertainty. Highly resilient ecosystems tend to have reproductive cycles, trophic cascades, and population connectivity - all of these characteristics give these ecosystems better chances of surviving different types of disturbances.
A collection of cells with similar function forms -
Answer:
Tissue is a collection of cells with similar function forms.
Explanation:
which is not included in the partnership-based approach to conservation of the US fish and wildlife service?
cooperation
consultation communication contemplation
Answer:
Consultation.
Explanation:
Consultation is not included because there is no need for it in US fish and wildlife service. Cooperation, communication and contemplation are needed in order to conserve the US fish and wildlife service in a good manner. Cooperation is required in order to fulfill the common goal and communication between different departments is also necessary. contemplation refers to examination and inspection which is very important for achieving the goal.
Ben makes five paper helicopters with different when leaves he drops them at the same from a height of 2 measures 4/5 Chelsea Pier acquired the amount of the time it takes for each helicopter to Fox and crafts what is the independent variable
Answer:
The question is unclear, however, it can still be answered based on understanding of the topic, with correct explanation.
The independent variable is the HELICOPTERS MADE FROM DIFFERENT MATERIALS
Explanation:
The independent variable in an experiment is the variable that the experimenter manipulates or changes in order to effect a response in the dependent variable. The independent variable is also called the experimental variable.
In this case, Ben makes five paper helicopters using different materials and tests the amount of time each paper helicopter will take to fall. Hence, the PAPER HELICOPTERS MADE FROM DIFFERENT MATERIALS is the independent variable, which determines how long they will fly (dependent variable)
2. I Love Popcorn!
Jason wanted to find out how he could increase the number of popcorn kernels that pop when
1
cooked. He hypothesized that more kernels would pop if he used more oil. To test this, he placed
100 kernels of "Pop Rite' popcorn into a popcorn popper that contained different amounts of oil. He
used the following amounts of oil: 5 ml, 10 ml, 20 ml, and 30ml. He used 5 ml of oil as the control.
Header
He conducted the test 3 times for each amount of oil. He then counted the number of kernels that
had popped. Each time he heated the oil for 2 minutes and cooked the popcorn for 4 minutes.
Hypothesis: I think the popcorn with the most oil will have the most popped kernels because the hotter
all the oil gets and the more oil there is in it, then the kernels will be able to pop faster. What are the:
Independent Variables:
Dependent Variables:
Controlled Variables:
Answer:
Independent: amounts of oil
Dependent: amounts of popped kernels
Controlled variables: Kernel brand, cooking time, popping time
Explanation:
Independent variables are what are changed in the experiment. The dependent variables depend on the independent so they are what is affected each time. Usually this is what is being tested for. Controlled variables are those that aren't being tested and are kept the same each time to make sure it doesn't change the outcome.
If you have an experiment in which there are 4 different groups, and the same variable is manipulated in all of them, is there a control group?
Answer:No
Explanation:I believe it is no due to the fact that the variable is being manipulated in all groups and in order to be a control groups the variable must remain the same or must not be manipulated.
hope this helps :)
Pseudoscience is Exact and Precise.
True
False
Answer:
False.
Explanation:
Pseudoscience are not exact and precise. In fact, they are mistaken practices/methods that are not part of the scientific method or based on the scientific method.
Answer:
False.
Explanation:
Pseudoscience are not exact and precise.
how are elements related to why different materials are used to make different products
Answer:The atoms of different elements are held together in compounds by chemical bonds. ... The properties of a compound depend not only on which atoms the compound contains, but also on how the atoms are arranged. Atoms of carbon and hydrogen, for example, can combine to form many thousands of different compounds.
9. AAC is a codon that codes for the amino acid:
serine
lysine
asparagine
isoleucine
Answer:
asparagine
Explanation:
take a look at the graph attached, it helps identify codon sequences.
The codon AAC codes for the amino acid asparagine. Asparagine is a non-polar, neutral amino acid that is found in all living cells. Hence option C is correct.
It is involved in a variety of cellular processes, including protein synthesis, cell signaling, and energy metabolism.
The other answer choices are incorrect. Serine is coded for by the codon AGU or AGC. Lysine is coded for by the codons AAA or AAG. Isoleucine is coded for by the codons AUA, AUC, or AUU.
Therefore, option C) asparagine is correct.
To know more about asparagine:
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3. What is another name or a sub-property of cohesion? Give an example of how this affects living
organisms
Answer:
Unity is the other name of cohesion.
Explanation:
The property of cohesion is to sticking together of something. The molecules of liquid stick together with the help of cohesion. This cohesion property is very important for plants because with the help of this property, plants take water through roots from the soil and the water molecules are stick together with the help of cohesion. If cohesion is not present then the uptake of water can not be possible.
Structure has no apparent function in a species, but is fully functional in the species' ancestors.
a) true
b) false
Answer:
The correct answer would be - True.
Explanation:
In several organisms have structures, has no apparent role in the particular species and are residual parts from a past ancestor, but these structures were fully functional in the ancestors of the species. These structures are called vestigial structures or organs.
The example of such structures are, wings of the flightless birds, appendix of human and many other, all these structures has no function in the body of the individuals of the particular species but is fully functional in ancestors.
Thus, the correct answer is - true.
Examples of carbohydrates are?
Answer:
Sugar, starch, and gluclose.
Explanation: