1-D
2-A
this is due to pollution
21. All the following are differences between arteries and veins
except
arteries are thick and veins are thin
O arteries do not have valves and veins have valves
arteries connect to capillaries and veins do not connect to capillaries
arteries carry blood away from the heart and veins carry blood back to the heart
22. All the following are the 3 major parts of the cardiovascular system
VA
Answer:
Arteries connect to capillaries and veins don't connect to capillaries
Explanation:
Actually both are connected by capillaries
Destin Benning: Attempt 5
Question 6 (2 points) ✓ Saved
According to the base-pairing rules for DNA, which of the following statements is
not true?
A always pairs with T.
C always pairs with G.
Talways pairs with G.
Answer:
T always pairs with G
Explanation:
According to the complementary base pairing rule as postulated by Chargaff, an Adenine base (A) will always hydrogen pair with a Thymine base while Cytosine base (C) will always hydrogen pair with Guanine base (G) in a DNA molecule.
That is; A - T and G - C
Hence, based on the question, the pairing of Guanine and Thymine is incorrect.
HELP GUYSSSSS PLS
Explain the role of insulin in the homeostatic regulation of blood glucose levels
Answer:
Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.
name two components of blood that are not present in glomerular filtrate
Answer:
Filterable blood components include water, nitrogenous waste, and nutrients that will be transferred into the glomerulus to form the glomerular filtrate. Non-filterable blood components include blood cells, albumins, and platelets, that will leave the glomerulus through the efferent arteriole.
:_:
Blood cells and plasma proteins are the two components that are not present in glomerular filtrate.
What is blood cells?"A blood cell is a cell produced through hematopoiesis and found mainly in the blood."It includes RBCs, WBCs and platelets.What are plasma proteins?"Plasma proteins are proteins present in blood plasma."It plays an important role in immune system.What is glomerular filtrate?The filtrate formed after filtration of blood in the glomerulus is called glomerular filtrate. It consists majorly of water and other constituents such as amino acids, glucose, potassium, sodium, urea, uric acid and ketone bodies.The filtrate does not contain RBCs, WBCs, platelets and plasma proteins.
Hence, the blood cells and plasma proteins are not present in glomerular filtrate.
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When observing an ECG, you will see many different deflections from baseline known as waves. These deflections represent various electrical events taking place in the heart that give rise to the mechanical events that help move blood. In addition to the waves that can be observed, there are flat lines between waves and successive cardiac cycles called segments that also represent particular electrical events that take place in the heart. Finally, certain combinations of waves and segments, known as intervals, also identify important events recorded by the ECG. Match each of the following events with the correct phase of an ECG. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
A. P wave
B. ST segment
C. QRS complex
D. PR segment
E. T wave
F. QT Interval
1. Atrial depolarization_____.
2. The ventricles are in their depolarized state____.
3. Total time it takes for the ventricular muscle to depolarize and repolarize____.
4. Ventricular depolarization____.
5. Conduction through the atrioventricular (AV) node____.
6. Ventricular repolarization____.
7. Conduction through the atrioventricular (AV) bundle____.
Answer:
1. Ventricular depolarization −−QRS complex
2. Total time it takes for the ventricular muscle to depolarize and repolarize −−QT interval
3. Atrial depolarization −−P wave
4. Conduction through the atrioventricular (AV) node −−PR segment
5. Ventricular repolarization −−T wave
6. The ventricles are in their depolarized state −−ST segment
7. Conduction through the atrioventricular (AV) bundle −−Q wave
Explanation:
ECG or electrocardiogram is the graphical representation of the heart's rhythm and electrical activity measured by electrical signals. The contraction of the heart shows electrical activity.
There are various deflections shows from baseline and known as specific waves and there are also some flat lines between waves called intervals. This atrial depolarization is called P wave and ventricular repolarization called T wave and the time between ventricular muscles depolarization ( QRS complex) and repolarization is QT interval. Conduction through the atrioventricular (AV) bundle is known as Q wave.
Proteins work as buffers to prevent acidosis
O
O False
Answer: ima say its true
Explanation: Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid. ... The respiratory and renal systems also play major roles in acid-base homeostasis by removing CO2 and hydrogen ions, respectively, from the body.
What is the answer of the question?
Answer:
A. Amino Acid, protein, gene.
Explanation:
Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.
A gene can be defined as a complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Simply stated, a sequence of biomolecules which are responsible for coded genetic instructions in all living organisms is known as nucleotides.
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
Furthermore, the two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
Additionally, the proteins which are mainly synthesized based on the genetic instruction codes in deoxyribonucleic acid (DNA) determines the trait of living organisms.
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Hence, when you remove a nucleotide from a gene, the order of nucleotides shifts and as such resulting in new amino acid being coded for. These new amino acid will combine to form a different protein than what the gene was originally coded for.
How does a bacterium compare to a frog at the cellular level?
Answer:
Bacterium is prokaryotic while frog is eukaryotic, also Bacterium is unicellular while frog is multicellular
Explanation:
Bacteria can be considered unicellular prokaryotic organisms, whereas a frog is a multicellular eukaryotic organism.
What are prokaryotic cells?Prokaryotic cells are specific cells that do not have a cell nucleus and also lack membrane-bound organelles.
Conversely, eukaryotic cells contain organelles and the genetic material is compartmentalized in the nucleus.In conclusion, bacteria are unicellular prokaryotic organisms, whereas a frog is a multicellular eukaryotic organism.
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What kind of neurons are sending messages from the brains to legs ordering them to dance ?
Answer:
motor neurons
Explanation:
( i believe ,, correct me if i am wrong )
the sensory neurons collect stimuli from your surroundings or they send messages to the relay neurons ,, and therefore causes the motor neurons to act on the command to move a certain body part .
What is the sequence of amino acids formed from this gene?
Listen to pronunciation. (uh-MEE-noh A-sid SEE-kwents) The arrangement of amino acids in a protein. Proteins can be made from 20 different kinds of amino acids, and the structure and function of each protein are determined by the kinds of amino acids used to make it and how they are arranged.
In what process does cross over occur
Answer: Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up.
Explanation:
When Joe saw the Rocky Mountains for the first time, he exclaimed, "These Mountains are much younger than ours back East!" Which feature supports his conclusion that the Rockies were relatively young mountains? * a)they have rounded tops b)weathering has not yet hardened the rock c)they have sharp peaks
The statement "they have sharp peaks" is a feature supports his conclusion that the Rockies were relatively young mountains.
What is a mountain?A mountain is an elevated area of the crust of the Earth, typically with steep sides that reveal a substantial amount of bedrock that has been exposed. Although definitions vary, a mountain is often taller than a hill, rising normally at least 300 meters above the surrounding terrain, and differs from a plateau in having a constrained peak area.
it is a landform that rises significantly above the surrounding terrain. Mountains, which are steeper than hills, are created when the Earth's crust's tectonic plates collide and push the land upward where they do. As an alternative, molten rock that has broken through the Earth's surface can also rise up and form mountains.
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When one organism indirectly benefits from another, it is termed as ______
That should be Commensalism
stars a and b have the same luminosity, but star b is much farther away from earth. how does star a's apparent brightness compare with that of star b?
A. stars a and b have the same apparent brightness
B. star a has a greater apparent brightness than star b
C. star a has an apparent brightness that changes more than star b's
D. star a has a lesser apparent than star b
Answer: the answer is b.) star a has a greater apparent brightness than star b!!
Explanation: ap3x !!
The brightness can be compared as star a has a greater apparent brightness than star b (Option B).
What is star brightness?Star brightness refers to the amount of light released by a star and we can observe it for the Earth.
Star brightness largely depends on the distance that separates us from the star.Star brightness is a fundamental property to estimate the age of a particular star.
In conclusion, the brightness can be compared as star a has a greater apparent brightness than star b (Option B).
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This man took the evolution work of Darwin and applied it to human cultures, arguing that just like species, some cultures are better adapted to the world than others (that is, they are more successful at extracting resources and providing for their offspring), and for this reason, those more successful cultures are superior.
a) Herbert Spencer
b) Franz Boas
c) E. B. Tylor
d) Lewis Henry Morgan
Answer:
A
Explanation:
A
Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
Franz U. Boas was an anthropologist and who has been considered as the "Father of American Anthropology".F. Boas is known due to the theory of cultural relativism, which states cultures are essentially similar.Boas work's is in consonance with Darwin's ideas of natural selection and evolution.In conclusion, Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
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1)How do mutations impact
the process of translation?
2)How did a mutation affect a human population of West Africa?
Answer:
hey are you kpop fan??
you know bts???
which of these statements would be accurate in their explanation of the formation of new organs and a whole plant from an original leaf
Answer:
where is the statement..........
Humans
have many interactions with the environment. Briefly describe how human activities can affect the environment of organisms
living 50 years from now. In your answer, be sure to:
A. Identify one human activity that could release chemicals harmful to the environment.
B. Identify the chemical released by the activity.
C. State one effect the release of this chemical would most likely have on future ecosystems.
D. State one way in which humans can reduce the production of this chemical to lessen its effect on future
ecosystems.
Answer:
Explanation:
human contanials alot
A. Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.
What are fossil fuels?Fossil fuel is defined as non-renewable energy sources such as coal, coal products, natural gas, derived gas, crude oil, petroleum products and non-renewable wastes.
B. When fossil fuels are burned, they release nitrogen oxides into the atmosphere.
C. Burning of fossil fuel contribute to the formation of smog and acid rain. The most common nitrogen-related compounds emitted into the air by human activities are collectively known to as nitrogen oxides.
D. One way in which humans can reduce the production of this chemical to lessen its effect on future ecosystems is to use alternative fuels such as solar, wind or water.
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The graph below shows the averaged sunspots from 1610 to 2007.
The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30.
Based on the graph, which of these conclusions is correct? (2 points)
Group of answer choices
Sunspots spike about every 10 years.
Global climate changes every 5 years.
Earth's temperatures rise every year.
Sunspots increase with time.
Answer: sunspots spike about every 10 years
Explanation:
took the test and got it right
Answer:
Sunspots spike every ten years
Explanation:
What is the approximate straight-line distance from Mt. Marcy to Slide Mt.?
Answer:
93.2 miles
Explanation:
Sustainable agriculture is farming that conserves natural resources and helps keep the farmed land productive indefinitely . This kind of agriculture minimizes the amount of energy , water , pesticides , and fertilizer needed to grow crops . Sustainable agriculture involves planting productive , pest resistant crops that require fewer resources and less maintenance . How do the resources needed for sustainable agriculture compare with the resources needed for large scale agriculture ? I’m
Answer:A
Explanation: more resources are usually need it for the initial set up and planning of traditional large scale agriculture techniques.
hey guys i need help (for bio) i’ll make you the brainiest and it’s 20 points!
What is the bottom layer in the soil?
topsoil
parent rock
humus
subsoil
Answer:
my answer is: subsoil
Explanation:
Answer:
Parent rock, also now as bedrock
Explanation:
How does DNA analysis help scientists better understand evolution? (1 point)
O It spells out the amino acids that make up an organism.
o It shows us what codons an organism has.
o It helps chart changes in amino acid sequences over time.
O It shows us an organism's genome sequence.
Answer: i would say number one
Explanation: DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change
hope this help
Answer:
It helps chart changes in amino acid sequences over time.
Explanation:
I took the qc
Select the best answer for the question.
9. What monomer is polymerized to form DNA?
O A. Nucleotides
O B. Amino acids
O C. Enzymes
O D. Chromosomes
Answer:
please lock answer a
Explanation:
please lock answer a ok
Answer:
A. Nucleotides
Explanation:
The monomers of DNA are called "Nucleotide". This is the answer you are looking for.
Hope This Helps :)
Explain how this experiment showed that genetic drift was not a cause of the antibiotic resistance.
Answer:
Antibiotic resistance happens naturally due to genetic mutation through random selection, however, genetic drift occurs on purpose and tests which genes are stronger and should continue to be passed on to future generations.
It should be noted that antibiotics resistance happens naturally due to genetic mutation through random selection.
How do antibiotics resistance occur?It should be noted that antibiotics resistance occur when only some of a prescription is used by an individual.
In this case, genetic drift occurs on purpose and tests that genes are stronger.
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The Kuiper Belt holds most of the solar system's_______.
A.moons B.dwarf planets
C.comets
D.planets
Answer:
B. dwarf planets
Explanation:
Trust
PLEASE ANSWER ASAP
What do you notice about the anti parallel strands?
Answer:
Antiparallel: A term applied to two molecules that are side by side but run in opposite directions. The two strands of DNA are antiparallel. The head of one strand is always laid against the tail of the other strand of DNA
explain why roots need to use to different methods to absorb water and ions
Answer:
m kemc
Explanation:
kmdefe
Explain the reason the Type AB and Type O blood phenotypes always have the same
genotype, whereas the Type A and Type B blood phenotypes have two possible allelic
combinations.
Answer:
Because A is co-dominant to B and O is recessive, so the genotype is the same as the phenotype. But A can have 2 genotypes because A can mask a recessive allele, which makes the phenotype A. B can also mask a recessive allele, which makes the phenotype B.
Examples
AO (genotype) = A (phenotype)
BO (genotype) = B (phenotype)