Answers
Answer:
Hemoglobin, or red blood cells, are primarily transporters of oxygen. These cells receive oxygen as air is breathed in through the lungs. Oxygen binds itself to these cells, which then carry it to the heart. The heart circulates the oxygenated blood to cells throughout the body in the process of cellular respiration.
Explanation:
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Related Questions
Semiarid climates receive more rainfall than arid climates. Please select the best answer from the choices provided T F
Answers
Answer:
The answer is True
Explanation:
I got it right on ed :P
Answer:
it is true
Explanation:
i love people and like to help them
The shape of each of the molecules is important because
Answers
Answer:
The shape of a molecule is important because it is a feature that often determines the fate of a compound regarding molecular interactions.
Explanation:
Answer:answer is 2
Explanation:
Which basic function of life is exemplified when a single-celled organism uses its eyespot to sense light?
Answers
Answer:
Responding to changes in its environment
Explanation:
Light is an environmental factor and being able to sense and react to environmental changes is a function of life
Answer: responce to stimuli
Explanation:
You and your friend each grab a cup of chocolate milk. Your friend says, "This feels hot". However, you think that it feels cold. Explain how this difference could be possible.
Answers
Answer:
Explanation:
The difference could be possible because heat is transfer. When my grabbed a cup of chocolate drink, heat is transfer from the cup to my friend's body through a form of heat transfer called conduction.
Conduction is a type of heat transfer where heat is transfer between close atoms or molecules by collision. It o cur between solid and liquids that are close together.
While when I grabbed the cup, there is no form of heat transfer from the cup to my body.
Which of the following determines a cell's function?
A Its environment
B Its Location
C Its size
D Its structure
Answers
Answer:
it's environment
Explanation:
its nature
Scientists have evidence that Glossopteris was found in what is now India, Antarctica, Australia, and Madagascar. What does this tell you about the position of the continents 225 million years ago?
Answers
Answer:
these continents were joined as a single landmass
Explanation:
Alfred Wegener proposed the 'Continental Drift Hypothesis' which stated continents were joined into a single great landmass called Pangaea. Pangea was a supercontinent that was assembled during the late Paleozoic and early Mesozoic eras, from about 330 to 200 million years ago. During the early Mesozoic, Pangea began to separate into continents observed today. It is for that reason that the same fossils can be found in very different geographic-climatic regions, evidencing that in the past continents were joined into larger landmasses.
If your going to use google at least put it in your own words because I will know if u didn't What is associated gas?
Answers
Explanation:
natural gas found in same reservoir as crude oil
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You have already learned about the formation of metamorphic, sedimentary, and igneous rocks. Use what you know to construct an explanation about how you think melted rock deep within Earth could change over time and one day look like the image on this page.
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The solid Earth (the mantle and crust) is made of rock. You may have noticed that there are many kinds of rocks, from the soft sandy rocks that form the cliffs at Scripps beach to the hard rocks that form the mountains to the East of San Diego. Geologists have developed a way of classifying the various rocks and understand fairly well where they come from and where they go. There are three general types of rocks, those that form from melt (igneous rocks), those that are deposited from air or water (sedimentary rocks), and those that have formed by "cooking" or otherwise altering another rock (metamorphic rocks). Sedimentary rocks form by breaking down other kinds of rocks into small particles and washing or blowing them away; metamorphic rocks form from other rocks and igneous rocks form by melting other rocks. Thus rocks are always changing form and are as part of a giant cycle of renewal. This cycle is called the Rock Cycle.
How can each copy of DNA at the end of replication be compared?
A. Each copy is identical to each other
B. Each copy is different from each other
C. They are 90% similar
D. They are 50% similar
Answers
Answer:
At the end of DNA replication, each copy is identical to each other (option A).
Explanation:
The concept of DNA replication implies that, from an original molecule, two identical molecules are obtained.
DNA replication is based on a semi-conservative model, since the double strand is separated, and each strand serves as a mold for the synthesis of a new strand. At the end of the replication, two identical DNA molecules will be obtained, each consisting of an original strand and a new one.
The best evidence that the replication process results in two identical molecules is that, otherwise, an individual's genetic information could vary, which does not happen.
The other options are not correct because:
B. The copies cannot be different.
C and D. They are 100% identical, not partially (50 or 90%) similar.
3. Arrange the following terms in order from smallest/least complex to largest/
most
complex.
O A. Tissue, molecule, cell, organ, organ system, organism
OB. Molecule, cell, tissue, organ, organ system, organism
OC. Tissue molecule, cell, organism, organ, organ system
D. Molecule, cell, tissue, organism, organ, organ system
Answers
Answer:
B.- Molecule, cell, tissue, organ, organ system, organism
Explanation: Found it in the reading assignment, and double checked it to make sure it was right :)
The molecule, cell, tissue, organ, organ system, and the organism is arranged from least or smallest to the most or largest complex. Thus, option B is correct.
What is the level of organization?The level of an organization defines the relationship starting from simple to complex arrangements. It starts with the most simple and small order and further goes up to the complex and largest structures.
The molecules are the smallest structures after an atom that combines to form a cell. The cell is the fundamental unit that combines together to make a tissue that further forms an organ. The different organs combinedly form an organ system and finally an organism.
Therefore, the molecule is the simplest and the organism is the most complex.
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can you help me with this question?
Which kind of virus begins multiplying last? How soon after infection does this happen?
Answers
Answer:
Multiplication - Medical Microbiology - NCBI Bookshelfwww.ncbi.nlm.nih.gov › books › NBK8181
First, the ability of a virus to multiply and the fate of an infected cell hinge on the ... In a few instances (papovaviruses), viral proteins merely assist host enzymes to ... In all instances, it is the viral proteins which package the genome into virions ... First, shortly after infection and for up to several hours thereafter,
Explanation:
The space outside the nucleus of an atom contains?
A) protons
B) electrons
C) neutrons
D) protons & neutrons
Answers
Answer:
Electrons
Explanation:
Electrons are always outside the neucleus of an atom. The rest are stored inside.
What are the four stages in a fly's life cycle from beginning to end? *
Larva - Egg - Adult - Pupa
Egg - Larva - Adult - Pupa
Adult - Pupa - Larva - Egg
Egg - Larva - Pupa - Adult
Answers
What is meningitis? (ANATOMY)
Answers
Answer:
Inflammation of brain and spinal cord membranes, typically caused by an infection.
Meningitis is usually caused by a viral infection but can also be bacterial or fungal. Vaccines can prevent some forms of meningitis.
Symptoms include headache, fever, and stiff neck.
Depending on the cause, meningitis may get better on its own, or it can be life-threatening, requiring urgent antibiotic treatment.
Explanation:
Answer:
Inflammation of the brain and spinal cord membranes, typically caused by an infection.
Explanation:
Meningitis is usually caused by a viral infection but can also be bacterial or fungal. Vaccines can prevent some forms of meningitis.
Symptoms include headache, fever, and stiff neck.
Depending on the cause, meningitis may get better on its own, or it can be life-threatening, requiring urgent antibiotic treatment.
- <3, xo,nm
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
What experimental evidence led to the development of this atomic model from the one before it?
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.
Experiments with water vapor showed that elements combine in specific proportions.
Equations were used to identify regions around the nucleus where electrons would likely be.
Cathode rays were bent in the same way whenever a magnet was brought near them.
Answers
Answer:
The answer is C
Explanation:
I was correct at first but then chanaged my answer when someone said it was a :(
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil. Therefore, option (1) is correct.
The gold foil or Rutherford scattering experiment showed that the atom has a small, compact, positively charged nucleus. The gold foil deflected few alpha particles, indicating that the atom is primarily empty space. A small percentage of particles deflected or bounced back, revealing a concentrated positive charge in a limited region of the atom.
This led to Ernest Rutherford's atomic model, often known as the planetary model, where the atom has a tiny, positively charged nucleus at the centre and mostly empty space where electrons orbit it. Therefore, option (1) is correct.
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Your question is incomplete but your full question was:
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
What experimental evidence led to the development of this atomic model from the one before it?
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.Experiments with water vapor showed that elements combine in specific proportions.Equations were used to identify regions around the nucleus where electrons would likely be.Cathode rays were bent in the same way whenever a magnet was brought near them.Complete the passage to describe independent assortment. (Fill in blanks)
During metaphase 1, the chromosomes line up in the middle of the cell. The way the chromosomes line up is ________ , or independent. This independent alignment results in different possible arrangements or assortments of chromosomes during metaphase. This in turn results in different __________ of chromosomes in _____
cells. During sexual reproduction, the traits that are determined by the genes on these chromosomes are passed on from parents to offspring.
Answers
Answer:
During metaphase 1, the chromosomes line up in the middle of the cell. The way the chromosomes line up is random, or independent. This independent alignment results in different possible arrangements or assortments of chromosomes during metaphase. This in turn results in different sets of chromosomes in daughter cells. During sexual reproduction, the traits that are determined by the genes on these chromosomes are passed on from parents to offspring.
Explanation:
In metaphase, the typical chromosome is formed by two chromatids joined by a centromere. Each chromatid is composed of a sequence of chromatin ringlets domains. During metaphase I, fibers of the spindle apparatus capture chromosomes and take them toward the center of the cell, to the metaphase plate. Each chromosome of the pair joins with a microtubule of only one of the spindle poles, so the two equivalent chromosomes join the fibers of opposites poles.
The homologous pairs of chromosomes get aligned in the metaphase plate for their posterior separation in anaphase I. When they align in the center of the cell, their orientation is random.
Answer:
1st blank: Random
2nd blank: Combinations
3rd Blank: Sex
Explanation: I got 100 on it.
What other effects does the shortened dystrophin have on a cell?
Answers
Answer:
Skeletal and cardiac muscle cells without functional dystrophin become damaged as the muscles repeatedly contract and relax with use.The damaged cells weaken and die over time,causing the charasteristic muscle weakness and heart problems seen in Duchenne and Becker muscular dystophy.
If you construct a model that places a cell with an internal salt concentration of 0.02 M in an aqueous solution that has a salt concentration of 0.015 M, what would cause the cell to lose internal pressure?
a. Active transport of water against the gradient
b. Diffusion of water with the pressure gradient
c. Osmosis of water flowing from where the solute is least concentrated
d. Passive transport of water with the gradient
Answers
A model that places a cell with an internal salt concentration of 0.02 M in an aqueous solution that has a salt concentration of 0.015 M would be because of the Active transport of water against the gradient. It is transported from the condition of high osmolarity to a solution of lower osmolarity.
What is active transport ?Active transport is the process which is helped up by the active ions and active channels that help to maintain the balance and transportation of molecules in the membrane.
The concentration mentioned in the equation is the concentration that is like the concentration of higher osmolarity and the flow will continue to the concentration of lower osmolarity across the semi permeable membrane. Water is transported against its concentration gradient.
Diffusion is the movement of higher concentration to the lower concentration through a semi permeable membrane. Osmosis is opposite to it.
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if genes are on different chromosomes, the law of independent assortment states that -
gene pairs always stay together
half an organism's gametes have one allele per pair
gene pairs segregate randomly and independently of each other.
one allele is always dominant
Answers
Answer:
Gene pairs segregate randomly and independently of each other.
Explanation:
Genes are the basic units of hereditary and are located on chromosomes. According to Gregor Mendel's law of independent assortment which states that the alleles of two (or more) different genes are sorted into gametes independently of one another. This means that the allele a gamete receives for one gene does not influence the allele the same gamete receives for another gene.
For example, in a the pea plants used by Mendel in his studies, the genes for seed shape and flower color were inherited independent of each other by the offspring of the parent pea plants. Therefore, Mendel concluded that the inheritance of each trait was independent of the other.
Answer:
gene pairs segregate randomly and independently of each other
Explanation:
According to the Law of Independent Assortment, if two genes are on different chromosomes, then the alleles for these genes separate independently of each other during the formation of eggs or sperm.
This means that genes separate independently of one another. This explanation most closely matches C) gene pairs segregate randomly and independently of each other.
PLEASE Help me and use the paper i put in the photo for the answer
Give at least 2 examples of the crucial roles enzymes do for the body
Answers
Answer:
Explanation:
the enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion. An enzyme's shape is tied to its function. Heat, disease, or harsh chemical conditions can damage enzymes and change their shape
What atoms are organic molecules in cells made of ?
Answers
Answer:
All organic molecules are made up of carbon compounds so we can say that the main atom or molecule is carbon.
hope it helps!
Which of the following correctly explains the difference between mitosis and meiosis?
Answers
Answer:
Below is a definition of the distinction between mitosis as well as meiosis.
Explanation:
Mitosis:
The genetic information (DNA) in something like a cell throughout mitosis has been duplicated as well as split evenly into two cells. An orderly sequence of circumstances known as the cell cycle moves through it's dividing cell.Meiosis:
Meiosis seems to be the mechanism whereby the gametes throughout sexually reproducing individuals are produced. Gametes have been formed in gender gonads and just like the new cells, constitute two complete sets of chromosomes.How did Carlsbad caverns form in your own words.
Answers
Answer:
Between four and six million years ago approximatly, hydrogen-sulfide-rich (H2S) waters began to migrate through fractures and faults in the Capitan limestone. ... This acid dissolved the limestone along fractures and folds in the rock to form Carlsbad Cavern.
happy to help:)
Fully explain how cellular respiration is a chemical process whereby the bonds of food molecules and oxygen molecules are broken and the bonds in new compounds are formed resulting in a net transfer of energy.
Answers
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation. Oxidative phosphorylation is powered by the movement of electrons through the electron transport chain, a series of proteins embedded in the inner membrane of the mitochondrion.
These electrons come originally from glucose and are shuttled to the electron transport chain when they gain electrons.
As electrons move down the chain, energy is released and used to pump protons out of the matrix, forming a gradient. Protons flow back into the matrix through an enzyme called ATP synthase, making ATP. At the end of the electron transport chain, oxygen accepts electrons and takes up protons to form water. Glycolysis can take place without oxygen in a process called fermentation. The other three stages of cellular respiration—pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation—require oxygen in order to occur. Only oxidative phosphorylation uses oxygen directly, but the other two stages can't run without oxidative phosphorylation.). As electrons move down the chain, energy is released and used to pump protons out of the matrix, forming a gradient. Protons flow back into the matrix through an enzyme called ATP synthase, making ATP. At the end of the electron transport chain, oxygen accepts electrons and takes up protons to form water.
Glycolysis can take place without oxygen in a process called fermentation. The other three stages of cellular respiration—pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation—require oxygen in order to occur. Only oxidative phosphorylation uses oxygen directly, but the other two stages can't run without oxidative phosphorylation.
Cellular respiration is a metabolic process called cellular respiration that converts glucose to ATP.
What is cellular respiration?Cellular respiration has the processes: Glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation are the phases of cellular respiration.
A glucose molecule gradually decomposes into carbon dioxide and water during cellular respiration. In the process of transforming glucose, some ATP is directly created.
But far more ATP is later created through a procedure known as oxidative phosphorylation. The electron transport chain, a collection of proteins enmeshed in the inner membrane of the mitochondrion, is what drives oxidative phosphorylation.
Therefore, Cellular respiration is a metabolic procedure by which glucose is changed into ATP.
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What does wood combine with when it is burned?
a. Carbon dioxide
b. Oxygen
c. Water
d. It doesn’t combine with anything
Answers
Answer:
oxygen
Explanation:
o2 is needed to make fire
What name is used to refer to the outer most shell of a Bohr diagram?
A) valence
B) nucleus
C) ionic
D) covalent
Answers
Answer:
A) valence
Explanation:
Remember valence electrons?
A) valence. This is the answer.
Which gas is produced by photosynthesis?
OA.
oxygen
OB.
B. hydrogen
OC.
nitrogen
OD D.
argon
Answers
Question 4 (1 point)
Plants can defend themselves against herbivores, but they can grow faster than they can be
eaten.
True
False
Saved at 3:43 pm
Submit
Answers
Answer:
False
Explanation:
hI think it's false because it takes days-months to grow and they can be eaten like in a day so false.
Which process works with erosion to break down rock?
deposition
settling
transportation
weathering
Answers
Weathering is the process that works with erosion to break down rock. Thus, option D is correct.
What is weathering?The rock particles has that are to be broken down inside the weathering method are moved to some other place within the course of the erosion. For this particular reason, weathering as well as the erosion paintings collectively reshape Earth's panorama. The technique of the bodily breaking down the rock.
Weathering has the breaking down or dissolving of the rocks and minerals on this planet's ground. once the rock has been damaged down, the method known as the erosion transports the bits of rock and minerals away. Water, acids, salt, flora, animals, and adjustments in temperature are all sellers of weathering and erosion.
The rock particles that has been broken down into or inside the weathering method are moved to some other place within the course of erosion. Weathering and the erosion paintings collectively reshape Earth's panorama. The technique of bodily breaking down the rock.
Therefore, Weathering is the process that works with erosion to break down rock. Thus, option D is correct.
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PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!
Answers
Answer:
the answer is b
Explanation:
it just it, you gotta trust me