Answer:
That statement is true, all stars are powered by a form of fusion.
how do organs work together to form specific functions
Answer:
Sistemas orgánicos
Explanation:
Aunque cada órgano del cuerpo realiza sus funciones específicas, los órganos también funcionan juntos por grupos, a los que se denomina sistemas orgánicos (ver Principales sistemas orgánicos). Los médicos clasifican las enfermedades y sus propias especialidades médicas de acuerdo a los diferentes sistemas orgánicos.
some chains of carbon atoms bend when the carbon atoms:
A. form single covalent bonds.
B. form double covalent bonds.
C. form bonds with oxygen atoms.
D. form bonds with hydrogen atoms.
Answer:
Fats with at least one double bond between carbon atoms are unsaturated fats. When some of these bonds are in the cis configuration, the resulting bend in the carbon backbone of the chain means that triglyceride molecules cannot pack tightly, so they remain liquid (oil) at room temperature.
What is spermatogenesis and sporophyte?
Answer:
Explanation:
1. Production of sperm by meiosis
2. diploid generation which alternates with haploid (in plants)
The genetic combination for the trait is the __________ and the physical characteristic that you see is the _________.
Answer:
1. Genotype 2. Phenotype
Explanation:
What is the main role of t cells in the immune response?.
T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.
which answer choice is a “product”?
Answer:
D.A substance that is produced during a chemical reaction
What is the role of gravity in our solar system?
Choose 1 answer:
Earth's gravity causes the sun and the other planets to revolve around it.
The sun's gravity causes Earth and the other planets to revolve around it.
Our solar system's gravity causes other star systems in the galaxy to revolve around it.
Uranus was originally thought to be the star Sagittarius A*.
True
False
Answer:
I think it's true
Explanation:
I'm so sorry if that's wrong
How is an
anatomical
adaptation
defined?
A. a system present within the
organism that allows it to perform a
biochemical reaction
B. a feature of the organism's body
that helps it survive and reproduce
C. a response from the organism that
changes it's behavior to help it survive
and reproduce
Anatomical adaptations involve every change in the organism's external structure. Option B. A feature of the organism's body that helps it survive and reproduce.
What is an anatomical adaptation?Anatomical adaptations are changes in the external structure of the organisms that help them survive and reproduce in a certain environment.
These adaptations allow the organisms
to camouflage if necessary (to scape from a predator or to hunt their prey, for instance), to protect themselves by imitating dangerous species' colors and shapes, to develop special structures needed to feed and move in that specific environment.
There are other two types of adaptations apart from anatomical ones. These are physiological and behavioral adaptations.
Options
A. a system present within the organism that allows it to perform a biochemical reaction ⇒ This is a physiological adaptation
B. a feature of the organism's body that helps it survive and reproduce ⇒ This is an anatomical adaptation
C. a response from the organism that changes it's behavior to help it survive and reproduce ⇒ This is a behavioral adaptation
The correct option is B. a feature of the organism's body that helps it survive and reproduce
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The human body depends on food to build and maintain.
Surface runoff is increased by (4 points)
ice
wind
deforestation
terrace building
Surface runoff is increased by deforestation. Details about surface runoff can be found below.
What is surface runoff?Surface runoff is the overland flow of excess water (with or without accumulated contaminants) that cannot be absorbed by the ground as infiltration.
Surface runoff has adverse effects on the soil and crops.
Deforestation exposes the bare soil, hence, is likely to cause surface runoff.
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Use the following information to calculate the correct frequencies: In a population of
Pennsylvanians, only 18% of individuals express the recessive trait of Syndactyly or webbed finger
(formulas: p+q=1 and p²+2pq+q2²=1)
a. What percentage of the population are not Webbed?
If we have the recessive genotypic frequency, we can calculate the phenotypic frequencies in a population in Hardy-Weinberg equilibrium. The percentage is 82%.
What si the Hardy-Weinberg equilibrium theory?The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies remain the same through generations in a population that is in equilibrium.
The allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,
Allelic frequencies
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qGenotypic frequencies after one generation are
• p² ⇒ H0m0zyg0us dominant genotypic frequency,
• 2pq ⇒ Heter0zyg0us genotypic frequency,
• q² ⇒ H0m0zyg0us recessive genotypic frequency.
The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
Available data:
18% of individuals express the recessive trait of Syndactyly
Let us say that the dominant allele is A and the recessive allele is a.
The dominant allele A codes for normal finger.The recessive allele a codes for webbed finger.Assuming this gene expresses complete dominance,
H0m0zyg0us dominant and heter0zyg0us -AA and Aa- individuals have normal finger.Their frequency in the population is p² + 2pq.
h0m0zyg0us recessive -aa- individuals have webbed finger.Their frequency in the population is q².
Individuals that express Syndactyly have webbed finger and their genotype is h0m0zyg0us recessive, aa. Their frequency in the population is q².
q² = 18% = 0.18
We can get the frequency of individuals with normal fingers by clearing the following equation,
p² + 2pq + q² = 1
p² + 2pq + 0.18 = 1
p² + 2pq = 1 - 0.18
p² + 2pq = 0.82
The frequency of individuals with normal fingers is p² + 2pq = 0.82 = 82%.
The percentage of the population are not Webbed is 82%.
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The Lorax tried talking the Once-ler out of chopping down the Truffula trees, until some event occurred. What happened that convinced the Once-ler he was right
His business failing was the reason why he was convinced that he was right to chop down the tree.
What is Chop?This is defined as the process in which a substance such as a tree is cut down through the use of tools.
Once-ler business failed and he felt chopping down the Truffula trees will result in him having money through the sales of the resources.
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help...
The graph shows projected changes in the populations of the world. Based on the information in the graph, wich region is expected to have the least population growth over the period shown.
Europe
Asia
Africa
Australia
Based on the graph the region expected to have the least population growth will be Australia.
Graphical illustrationsLooking at the given graph the population size of each region starts at a lower point and ends at a higher point on the graph between the years 1950 and 2050.
The change in the population also varies depending on the scale on the y-axis. Australia has the lowest scale which lies between somewhere above 10 and 50.
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The energy required for organisms to respond to the environment comes from:.
The energy required for organisms to respond to the environment comes from the sun.
What is the importance of the Sun in the ecosystem?Light energy, which also comes from the Sun, is essential for photosynthesis, a process in which green vegetables transform carbon dioxide and water into glucose, lipids, proteins, vitamins, nucleic acids, releasing oxygen into the atmosphere.
The sun is the basis of life, because if we analyze the food chain, its base comes from the photosynthetic beings that provide food for this chain to occur.
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a trophic pyramid for southern lake michigan coastal
please answer it
Answer:
Topic Pyramid-
Explanation:
the basic structure of interaction in all biological communities characterized by the manner in which food energy is passed from one trophic level to the next along the food chain.
:Hope's It's Help:
Function of jugular veins
The function of the internal jugular vein is to collect blood from the skull, brain, superficial parts of the face, and the majority of the neck. The tributaries of the internal jugular include the inferior petrosal sinus, facial, lingual, pharyngeal, superior and middle thyroid, and, occasionally, the occipital vein.
(hoped this helped)
Answer:
bring blood from head and neck
Explanation:
ASAP!
Active transport differs from Passive transport in that:
A. Only Active transport uses membrane proteins.
B. Only Passive transport uses membrane proteins.
C. Active transport requires energy.
D. Passive transport requires energy.
Answer:
C
Explanation:
Active transport requires energy, while passive energy does not.
which mammal didnt become extinct during the Cenoozoic era
Answer:
rodents and small horses
Hemlock trees support life of other organisms. Climate change has increased the rate of infection of Hemlocks with woolly adelgid. These kill the trees which decrease the habitat of animals and other insects. This is an example of how climate change impacts the
Answer:
Don't know your answer choices, though if one of them is "Community Level" that is the correct one.
Explanation:
Found on other websites, and just completed a quiz with the same answer.
Drop a paper of piece of thermopol and piece of plastic from a height of 10 to15 feet note the time for each object to hit the ground why does the paper more time than thermopoland how did thermopol more than the plastic piece how did it happen explain
Yes, it is possible because making a paper fold takes far less time than making a thermal or plastic item. The gravitational force is the reason behind this.
What is thermocol?Polystyrene, a complicated substance, is used to make thermocol. When heated to over 100°C, it changes to a liquid condition and then returns to a solid state when cooled.
A gravitational force is defined as which draws particles or bodies together.
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Drinking alcohol during pregnancy negatively impacts development of the fetus because
Use the following table to answer the question:
codons found in messenger rna
second base
first base u c a g third base
u phe
phe
leu
leu ser
ser
ser
ser tyr
tyr
stop
stop cys
cys
stop
trp u
c
a
g
c leu
leu
leu
leu pro
pro
pro
pro his
his
gln
gln arg
arg
arg
arg u
c
a
g
a ile
ile
ile
met thr
thr
thr
thr asn
asn
lys
lys ser
ser
arg
arg u
c
a
g
g val
val
val
val ala
ala
ala
ala asp
asp
glu
glu gly
gly
gly
gly u
c
a
g
this table shows the codons found in messenger rna. using this information, what sequence of nucleotides in the template strand of dna could code for the polypeptide sequence val-asp-ser?
guu-gau-agc
caa-cta-tcg
gtt-gat-agc
caa-cua-ucg
Nucleotides from the DNA template strand complement the mRNA's codons. These codons code for amino acids. Option B is correct. CAA - CTA - TCG
What are nucleotids?Nucleotides are monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base.
Several nucleotides joint by their extremes compose the nucleic acids.
Nucleotides have a certain order or sequence in nucleic acids, which is significant since these sequences carry biological information neccesary to carry out cellular functions.
What are codons?Codons are short sequences of three nucleotides that carry genetic information needed to build the protein. These units determine which amino acids are added to the growing chain during the assembly.
More than one codon might code for the same amino acid.
Different sequences of three nucleotides -codons- might code for a different amino acid. This means that the resulting proteins will not be the same, and they will accomplish different functions.
What are the template and coding strand?When DNA molecule unwinds to be transcripted, two single strands get separated,
The coding strandIt receives that name because it is the sequence that codes for each amino acid composing the proteins.
When referring to the coding strand, we are talking about the sequence that turns out to be the same as the mRNA that results from the transcription of the same DNI segment -switching bases T for U-.
The template strand -complementary strand-
This is the one that is used during transcription to synthesize mRNA. The template strand is the one that is going to be complemented by the mRNA.
To get to know the sequence of nucleotides in the template strand that code for the polypeptide sequence val-asp-ser, firts we need to know which codons code for these amino acids.
1)
Amino acid Codon
Val GUU, GUC, GUA, GUG
Asp GAU, GAC
Ser UCU, UCC, UCA, UCG, AGU, AGC
These are all the possible codons in mRNA that might code for these amino acids. Now, we need to identify their complementary bases on the template strand.
2)
mRNA Template strand
GUU CAA
GUC CAG
GUA CAT
GUG CAC
GAU CTA
GAC CTG
UCU AGA
UCC AGG
UCA AGT
UCG AGC
AGU TCA
AGC TCG
The column of the right shows all the possible nucleotides that might complement the mRNA codons. There are several combinations. Now, we need to choose among the options the correct combination.
3)
Options A and D ⇒ guu-gau-agc and caa-cua-ucg
These are not the correct options since they carry uracils instead of thymines. Remember that DNA molecules have thymine, and RNA molecules have uracil.
Option C ⇒ gtt-gat-agc
This is not correct since these sequences do not complement the mRNA codons.
Option B ⇒ caa-cta-tcg
This is correct. You can find these nucleotide sequences among the options written before for the template strand.
Option B) CAA - CTA - TCG is the correct one.
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Answer: CAA - CTA - TCG is the correct one.
Explanation:
In aqueous solutions, the charged ________ of phospholipids are attracted to the water phase, and the nonpolar ________ are repelled. This property causes lipids to naturally assume single and double layers.
In aqueous solutions, the charged hydrophilic heads of phospholipids are attracted to the water phase, and the nonpolar hydrophobic tails are repelled.
What do you mean by Phospholipids?Phospholipids may be defined as ad amphipathic molecule that consists of fatty acids, a phosphate group, and an alcohol attached to the phosphate.
The hydrophilic heads of the phospholipids are water-loving which consists of the phosphate group while the hydrophobic tails of the phospholipids are water-hating that comprises of fatty acids.
Therefore, in aqueous solutions, the charged hydrophilic heads of phospholipids are attracted to the water phase, and the nonpolar hydrophobic tails are repelled.
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The human fetus begins to hear in the womb and can recognize the mother's voice. O Truc False
Answer:
true
Explanation:
Answer:
by age 18 weeks of pregnancy, fetus begins hearing, and by 24 weeks, ear begins developing.
Explanation:
In addition to cytoplasm, most human body cells also have.
Answer:
Nucleus
Explanation:
There are many answers but some are :
Nucleus , Cell membrane , mitochondria , ribosomes
Hope this helped and have a good day
All cells contain cytoplasm, which is made up of cytosol, a jelly-like substance. The cytosol holds the internal structures in suspension.
What is the function of cell organelle in different cells?In addition to the nucleus, eukaryotic cells also have other organelles. An organelle is a cytoplasmic structure that serves a specialized purpose for the cell.
For instance, organelles called vacuoles store materials in the cell, whereas organelles called mitochondria supply energy.
The space between the plasma membrane and the nuclear envelope is known as the cytoplasm in eukaryotic cells, which have a nucleus.
The term “cytoplasm” refers to the entire inside the plasma membrane in prokaryotes, which are without a nucleus.
Therefore, Some cells additionally have a nucleus, cell membrane, mitochondria, and ribosomes in addition to their cytoplasm.
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Given what you've learned about scientific hypotheses, theories, and laws, do you think a scientific theory can become.
scientific law? Explain your reasoning.
Answer:
No. A law is something that happens without fail every time when being tested, or when it happens in nature. A law does not attempt to explain why the thing occurs, it only states it. A scientific theory is not something that can be tested on and will receive the exact same outcome each time. A theory attempts to explain an action seen in nature. Theories can be subject to change if new scientific data and research comes out, whereas laws cannot.
An experiment that has only one variable changed
1. Those who were successful in Round One did not survive equally well when others were
competing for food at the same dish during round two. Which beak was not successful and why?
Large beak will not be successful if the food is small in size because they can't eat that food.
Which beak was not successful and why?
Large beak was not successful if there is small sized food is present on the dish while on the other hand, if the dish has big sized food then the small beak can't survive the second round because they are unable to eat that food.
So we can conclude that big beak will not be successful if the food is small in size because they can't eat that food.
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dry lab evidence of evolution
Answer:no
Explanation: because it’s no
Answer:
The evidence for evolution
In this article, we'll examine the evidence for evolution on both macro and micro scales.
First, we'll look at several types of evidence (including physical and molecular features, geographical information, and fossils) that provide evidence for, and can allow us to reconstruct, macroevolutionary events.
At the end of the article, we'll finish by seeing how microevolution can be directly observed, as in the emergence of pesticide-resistant insects.