Answer:
when one muscle is contracted, the other muscle from the pair is always elongated. for example, the biceps and tricep muscles work together to allow you to bend and straighten your elbow. when you want to bend your elbow, your bicep muscle contracts. and at the same time tricep muscles relaxes.
Explanation:
Hope this helped Mark BRAINLIEST!!
If you watch a cell undergo mitosis, how can you tell the process is finished?
Group of answer choices
1.telophase and cytokinesis occur; a new cell membrane forms between the two daughter cells
2.anaphase occurs and the daughter chromosomes are pulled to the cell’s poles
4.prophase begins and the chromosomes appear
5.metaphase begins and the chromosomes line up along the equatorial plate
Which type of mutation will affect the largest number of proteins produced by
an organism?
O A. Point mutation
B. Chromosomal mutation
C. Silent mutation
D. Missense mutation
SUBMIT
Answer:
chromosomal Mutation
Explanation: because the answer is B
The type of mutation will affect the largest number of proteins produced by an organism is Missense mutation. Thus, option D is correct.
What happens in sickle cell anemia?In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the sequence of amino acids in β-globin, with valine being incorporated instead of glutamic acid. This constitutes a mutation of the missense type.
Missense mutations are characterized by the substitution of one nucleotide by another in the DNA sequence —a point mutation— whose consequence is reflected in the transcription and substitution of one amino acid by another in a protein, whose structure or function will be altered.
The change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease.
Therefore, the type of mutation will affect the largest number of proteins produced by an organism is Missense mutation. Thus, option D is correct.
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1. Why is DNA extracted from biological samples?
Well Basically if you and your family members are biological meaning related to each other it would make sense to take samples from them. And also in families there is always someone who inherit looks and the same blood like for example you may look like your dad and have the same blood type as him. ;) your welcome
Answer:
The ability to extract DNA is of primary importance to studying the genetic causes of disease and for the development of diagnostics and drugs.
Explanation:
Which of the following does not directly enable photosynthesis to take place in a leaf?
guard cells
stoma
phloem
xylem
I need this question nowwwwww
Answer:
C. .. the earth is between the sun and the moon which is exactly the position of these three bodies during a lunar eclipse
Which human body system has a major role in gas exchange?
Answer:
Respiratory system.
Explanation:
This entire system is based on air and gases. By "gas exchange," this is referencing how you breath in oxygen and, in turn, you breath out carbon dioxide.
Hope this helped!
Source(s) used: N/A
Your friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim?
Support your position with:
a description of a genetic mutation and
a scientific explanation of how a mutation may affect an organism such as a tomato, spinach, or strawberry plant.
Answer: No, I do not agree with this claim. Genetic Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. In other words, it is any change in the form of DNA. A mutation can result in a beneficial, neutral, or harmful reaction. It is mostly dependent on the organisms location and the context of the organism.
Explanation:
GIVING BRAINLIEST!!!!!
give 2 examples of muscles & their function
Answer:
Deltoid - Your deltoid muscles help move your shoulders
Quadriceps - Helps move your legs
Hope this helps :3
Explanation:
Answer:
I'm just going to go ahead and give you the three types of muscle!
Skeletal, Cardiac, and Smooth Muscle.
Explanation:
Skeletal Muscle:
The muscles attached to your bones that help pull and push when you move.
Cardiac Muscle:
Heart muscle that keeps the blood pumping. Is very thick and strong, as well as elastic to ensure smooth blood flow.
Smooth Muscle:
Essentially muscles in the other areas of your body, especially internal organs. For example, the muscles in your digestive system that involuntarily move food through your bowels are smooth muscles.
This is a basic picture on the three types! Hope that helped :)
The air in a scuba tank is composed of approximately 78% nitrogen, 21% oxygen, with the remainder being a mix of argon, carbon dioxide, neon, helium and others.
Answer:
Complete question found online is:
The air in a scuba tank is composed of approximately 78% nitrogen, 21% oxygen, with the remainder being a mix of argon, carbon dioxide, neon, helium and others.
What is the solvent?
What are the three solutes?
Explanation:
1. Nitrogen in air is a solvent as it is the highest in quantity and other gases are minorities.
2. Oxygen, carbon dioxide and argon, neon helium etc are solute in air mixture.
What is the weight of an adult brain
Answer:
1336 gr
Explanation:
for female, 1198 gr
Answer:
1336g for males and 1198g for females
Explanation:
What is Theory and law
Answer:
laws describe what will happen in a given situation as demonstrable by a mathematical equation, whereas theories describe how the phenomenon happens.
Explanation:
mark brainliest plzzz
Law predicts what happens and theory proposes why.
15. According to Hamilton's rule, the natural selection favors altruism when rB>C, where ris
coefficient of relatedness (fraction of genes shared), B is benefit, the average number of extra
offspring that the recipient of an altruistic act produces, and C is cost, how many fewer offspring
the altruist produces. Let's say that members of species X produce 4 offspring on average.
Individual A of species X is in a perilous situation that will result in its death if the individual A
does not get help. First cousin of individual A decides to risk its own life in order to save
Individual A. what would be maximum risk of death for the cousin, in order for altruistic act to
be favored by natural selection?
A) 6 2596
B) 12.5%
C) 25%
D)50.
step by step explain:
Answer:
Hamilton's rule, mathematical formula that supports the notion that natural selection favors genetic success, not reproductive success per sea. But by the recipient of the altruism, ℂ is the cost (in number of offspring equivalents) suffered. The altruistic behaviour, and r is the genetic relatedness of the altruist to the beneficiary.
Explanation:
I am not fursure on what your answer would be but I hope that what I put can help you find your answer.
what r the 5 sensory organs
Answer:
Explanation:
Much of this information comes through the sensory organs: the eyes, ears, nose, tongue, and skin. Specialized cells and tissues within these organs receive raw stimuli and translate them into signals the nervous system can use.
Answer:
Eyes, skin, ears, nose, and tongue.
BRAINIEST ANSWER:)
It’s either TRUE or FALSE
DO NOT SEND ME PDFS!!!!!! Answer with a paragraph
In seals, long whiskers (W) are dominant over short whiskers (w). What would be the phenotype ratio if the genotype ratio was 2 ww:1 ww?
short whiskers and short whuskers
Organisms that make their own food are called ____________.
Is this correct if not what is correct answer
Answer:
C. Matter is cycled through within an ecosystem, and energy at each trophic level is changed to heat energy.
Explanation:
An ecosystem can be defined as the natural living habitats of both living and non-living organisms. Essential services such as plant pollination, water purification, nutrient cycling, etc., that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.
In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.
Energy can be defined as the ability (capacity) to do work. The various forms of energy are solar energy, electrical energy, chemical energy, thermal energy, wind energy, nuclear energy, heat energy, etc.
During cellular respiration, living organisms use organic matter which are transformed back to carbon dioxide, minerals and water while heat is transferred.
Hence, the response which best describes how matter and energy is cycled through the ecosystem is that; matter is cycled through within an ecosystem, and energy at each trophic level is changed to heat energy.
Help please!! I'll name you brainliest!!
Which of the following best describes the initial separation event in allopatric separation?
A. Geographic isolation
B. Isolated niche population
C. Partially isolated population
D. Genetic polymorphism
Answer:
A. Geographic isolation
Explanation:
Allopatric speciation occurs when one population separates into two geographically isolated populations. The geographic isolation prevents gene transfer and reproduction, allowing for genetic divergence between the two populations.
Answer:
The Answer is A
Explanation:
hope it helps
-Frozen water that covers the ocean.
How do you think it is affected by human activities?
Answer:
swimming,fishing,
Explanation:
Fertilizers are used to replenish what in the soil?
A.Nutrients
B.Organic matter
C.Microorganisms
D.Nutrients and organic matter
Answer:
d
Explanation:
Answer:
D.Nutrients and organic matter
Explanation:
Fertilizers are used to replenish what in the soil?
D.Nutrients and organic matter.
PLEASE HELP ME ON THIS QUESTION ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a. low diversity
Explanation:
Alana cuts down a large number of trees so that she can see the ocean from her porch. Which of the following
describes why this is harmful?
The trees provided essential shade to her garden.
The trees were blocking harmful ultraviolet rays from the sun.
Cutting down trees adds to soil erosion and affects air quality.
The trees were not native to the land and can never be replaced.
Answer:
Cutting down trees adds to soil erosion and affects air quality, Maybe?
imagine that jesus is standing before you what kind of help will you ask him to give you and why
Answer:
Explanation:
I have alot of help to ask Jesus if He is standing before. First I will seek for mercy that He should show me mercy in all ramifications because He is merciful and mercy prevail over judgement.
His mercy can speak when other things cannot, by His mercy we are saved and redeemed.
I will also ask for the grace to love and serve Him because it is all in Him I can have ALL to the fullest.
I will seek help for His lifting because whosoever He lifts is Looking Fred forever...
I will ask for settlement in all areas because who ever He settled is settled and fulfilled forever...
I will ask so many things that I can't remember now because He can do all things and He is always willing to help.
Thanks.
Using the Am!n0 Acids Chart, c0de the pr0tein pr0duced from the DNA strand A T G G G G C T C A G C G A C.
Answer:
Nucleotide sequence: ATG-GGG-CTC-AGC-GAC
Translation: Methionine-Glycine-Leucine-Serine-Aspartic acid (abbreviation: MGLSD)
Explanation:
The genetic code refers to the universal rules by which cells decodes information encoded within genetic material, either DNA or the resulting messenger RNA (mRNA), into proteins. In the genetic code, each triplet of nucleotide bases or 'codon' in the DNA/RNA sequence determines a specific amino acid in the protein. The AUG codon in mRNA is a start codon that specifies Methionine (M) amino acid, while UAG, UAA, and UGA are stop codons that determine the end of the protein.
Once the light organ is colonized, the squid no longer takes in Vibrio fischeri or other bacteria from the environment. Explain how a sufficiently large population of bacteria can be maintained in the light organ to produce light.
Answer:
Due to suitable conditions.
Explanation:
Large population of bacteria can be maintained in the light organ to produce light by providing suitable conditions for growth and development in the organ. The luminescent genes are off when the organ has low cell density while on the other hand, when the density of cell is high in the light organ the luminescent genes automatically turned on and light up the organ. These Vibrio fischeri needs habitat and food for their growth and survival which is provided by the squid. If there is sufficient food for the squid, the population of Vibrio fischeri increases in the light organ.
Why are sea otters considered a keystone species? Why are they important?
because of the crucial ecological role they play in maintaining the health and stability of the nearshore marine ecosystem. It is important because without sea otters,sea urchins can overpopulate the sea floor and devour the kelp forest that provide cover and food for many other marine.
How would the finch populations on these islands change over time?
The finch population's beaks will be modified; on dry islands, they will have larger beaks, while on rainy islands, they will prefer medium or short beaks.
What is natural selection?Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are more likely to survive and pass on the genes that helped them thrive. Species change and diverge as a result of this process.
Because of the differences in environmental conditions, the finch populations on the dry and wet islands are likely to change differently over time.
Finches with traits that allow them to efficiently extract nutrients from dry seeds would have an advantage on the dry island, where food and water resources are limited.
Natural selection would favour these traits over time, increasing the frequency of these advantageous traits within the dry island finch population.
Thus, this way, the finch populations on these islands change over time.
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Your question seems incomplete, the probable complete question is:
Most scientists think that a small group of finches colonized the Galápagos Islands thousands of years ago. They would've been the only seed eating birds on the islands. Suppose one island was very dry and another had plentiful rainfall.
A. How would the finch populations on these islands change over time?
T A C---G A T---A C C---A T G Find the mRNA strand
Answer:
AUG-CUA-UGG-UAC
Explanation:
that should be it, when translated to mrna A codes for U, T codes for A, C codes for G and G codes for C. I hope this helps
Because continental crust undergoes heating and cooling cycles that lower its density, what do you expect to occur when oceanic and continental crust collide at a plate boundary?