20 POINTS AVAILABLE
Identify the structures of the heart.
Label A
Label B
Label C
Label D
Label E
Label F
Answers
Answer: A. PULMONARY VALUE
B. TRICUSPID VALUE
C. SEPTUM
D. BICUSPID VALUE
E. AORTIC VALUE
F. AORTA
Explanation:
Heart is the organ responsible for pumping blood throughout the body. Label A is pulmonary valve, Label B is tricuspid valve, Label C is septum, Label D is bicuspid valve, Label E is aortic valve and Label F is aorta.
What are valves in heart?Valves regulate the flow of blood coming from and to the heart. There are four valves in heart. These are as follows:
Pulmonary valve: present between right atrium and right ventricle.Tricuspid valve: present between right ventricle and pulmonary artery.Bicuspid valve: present between left atrium and left ventricle.Aortic valve: Helps to keep the direction of blood flow correct from heart.Septum is the tissue that separates left and right ventricles while aorta is the main artery which carry blood from heart to tissues.
Thus, label A is pulmonary valve, label B is tricuspid valve, label C is septum, label D is bicuspid valve, label E is aortic valve and label F is aorta.
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Related Questions
Thylacosmilus is a marsupial, and Smilodon is a mammal. Thylacosmilus and Smilodon both have saber teeth, but they do not share an ancestor that had saber teeth. What are saber teeth for these organisms?
analogous structures
homologous structures
vestigial structures
mutated structures
Answers
Answer:
A.) Analogous Structures
Explanation:
Smilodon and Thylacomilus don't share an ancestor, so they are most certainly not related. Analogous Structures refers to the fact of animals species having a similar body structure, though they have evolved separately.
Hope this helps ya, please slide me Brainliest :D
The study of a living being is called biology. There are two types of living beings and these are plants and animals.
The correct answer to the question is option A that is an analogous organ.
What is an analogous organ?
Analogous Structures
An analogous organ pertains to an organ that functions similarly to the organ from another yet evolutionary disparate species.According to the question, Smilodon and Thylacomilus don't share an ancestor, so they are most certainly not related. Analogous Structures refer to the fact of animals species having a similar body structure, though they have evolved separately.
Hence, the correct answer is option A.
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why is there a minimum mass for an object to become a star
Answers
Answer:
it doesn't hold enough anything to actually become a star
Explanation:
smaller objects cannot hold planets in orbit. smaller objects cannot generate enough pressure to start hydrogen fusion
hope this helps :)
there a minimum mass for an object to become a star because smaller objects cannot generate enough pressure to start hydrogen fusion.
hope this helps :)
Need help with biology homework question 6
Answers
Answer:
Explanation:
Step 1 DNA Replication starts at the Origin of Replication
Step 2
Helicase cuts hydrogen bonds then separates DNA in half
Step 3
Single Strand Binding Proteins connects to the halves and keep the DNA molecules separated (they are needed because the sides are attracted to each other and with out the Single Strand Binding Proteins they would move back together)
Step 4
In the leading strand, RNA Primase moves along nucleotides and coats with a RNA Primer that will be used as a homing beacon for the DNA Polymerase.
Step 5
DNA polymerase attaches post primase to DNA nucleotides and move along towards the Replication Fork. It adds nucleotides to the half DNA molecules.
Step 6
Another type of Polymerase replaces the primer with DNA nucleotides
Step 7
7. Ligase reconnects the gaps.
please help...
If a population does NOT meet the requirements of Hardy-Weinberg equilibrium, how would the allelic frequencies of that population be affected?
A
The allele frequencies would remain constant.
B
The allele frequencies may increase or decrease.
C
The allele frequencies would decrease.
D
The allele frequencies would increase.
E
All of the answer choices are correct.
Answers
C option.. The allele frequency may increase or decrease
Hardy-Weinberg equilibrium states about the genetic variation. If the equilibrium requirements are not achieved then allele frequencies may increase or decrease. Thus, option B is correct.
What is the Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium states that allele frequency remains constant if there are no disturbing factors affecting evolution or natural selection.
If the equilibrium is disturbed due to any factor or mutation in the population, then the frequency of that allele affected will be changed and affected in generations.
Therefore, the allele frequency increases or decreases if the Hardy-Weinberg equilibrium is disturbed.
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Forensic Science
How does simple assault rank amount crimes associated with alcohol use?
A. Least common
B. Most common
C. About 1%
D. About 4%
Answers
it would be b. most common
it is b most common
What was the main commodity of the trans-Saharan trade route?
Answers
Answer:
slaves
Explanation:
the main comidity was slaves from the interior parts of the african continent in exchange for beads,glass,wine and guns
Describe the process of DNA replication included the end result
Answers
Answer:DNA replication is the process by which DNA makes a copy of itself during cell division
Explanation:
DNA replication is the process by which DNA makes a copy of itself during cell division. The first step in DNA replication is to 'unzip' the double helix structure of the DNA? molecule. ... The two separated strands will act as templates for making the new strands of DNA.
Hemophilia is a genetic disorder in which blood does not clot as quickly as it should. If a person with hemophilia is injured, they can quickly bleed to death. Which of the following external factors would most endanger a person with hemophilia?
A.
the area of the country where the person lives
B.
the number of hours the person attends school every day
C.
the type of sports the person engages in
D.
the type of heater used in the person's home
Answers
Hi!
I belive it would be C. You can get hurt during school, but the hours wouldn't matter. Area where they live doesnt matter either, and I can't see a heater doing anything to you. But sports have different levels of brutality, so....yeah.
I hope this helps!
C) the type of sports a person plays
This is a model to help student understand the process of photosynthesis. Which allows plants to create their own food.The greatest limitation of this model is that
Answers
Answer:
It is incomplete and does not show all reactants and products.
Next time add the picture
Explanation:
Which is true with respect to the kinetic energy of a molecule?
A.
it is the lowest at low temperatures
B.
it increases at low temperatures
C. it is the same at all temperatures
D. it is the lowest at high temperatures
Answers
Answer:
a on plato
Explanation:
it is lowest at low tempatures
Select the choice that best completes the following sentence:
The synapse separates ______ from ______.
A.
sensory nerves; sense organs
B.
axon; myelin sheaths
C.
motor neurons; muscle tissue
D.
CNS; PNS
E.
synaptic terminals; dendrites
Answers
Correct option is E. The synapse separates synaptic terminals from dendrites, which is option E. A synapse is the junction allowing neural communication and is composed of the synaptic terminals of the presynaptic neuron and the dendrites of the postsynaptic neuron, with the synaptic cleft in between.
The choice that best completes the following sentence: The synapse separates synaptic terminals from dendrites is E. A synapse is the structure that allows neurons to pass signals to individual target cells. A synapse consists of the presynaptic end (or synaptic terminals) of one neuron and the postsynaptic end (or dendrites) of another neuron, separated by a small gap known as the synaptic cleft.
Specific proteins produced in a cell are directly related to the (1) number of mitochondria in a cell, (2) typeof ribosomes in the cell, (3) nucleotide sequence in the DNA of the cell, (4) sequence of the sugar and phosphates in the cell
Answers
Specific proteins produced in a cell are directly related to the nucleotide sequence in the DNA of a cell.
Answer:
To the nucleotide
Explanation:
Which of the following is not a negative consequence of upward urban growth? a. pollution b. creation of a “heat island” c. increased use of surrounding land d. waste management issues Please select the best answer from the choices provided A B C D
Answers
Answer:
The answer is C.
Explanation:
Hope this helps
Answer:
Option C- Increased use of surrounding land
Explanation:
Pollution and waste management are common when the population per unit square is high. Heat island is the increase in the temperature of a particular area in comparison to the surrounding non-inhabited areas. This is an other side effect of crowded housing.
Based on structure, in what way do DNA molecules differ from RNA molecules?
Answers
Answer:
Unlike DNA, RNA is almost always a single-stranded molecule and has a much shorter chain of nucleotides. RNA contains ribose, rather than the deoxyribose found in DNA (there is a hydroxyl group attached to the pentose ring in the 2' position whereas RNA has two hydroxyl groups). These hydroxyl groups make RNA less stable than DNA because it is more prone to hydrolysis. Several types of RNA (tRNA, rRNA) contain a great deal of secondary structure, which help promote stability.
Explanation:
What is a RNA molecule?
Well, RNA consist of aminoacids. An aminoacid is built up of three bases, which is a micture of a nucleoside (organic molecule), phosphatgroup and the base (A,T,G,C). This package is also called nucleic acid.
So RNA is built up the same way as DNA, but it's just a helix and not a duople-helix (DNA) and has got the base U instead of the base T. You can see that RNA is a molecule because its built up of molecules.
DNA is double-stranded and contains deoxyribose and thymine, whereas RNA is single-stranded, contains ribose, and has uracil instead of thymine.
Explanation:There are several key structural differences between RNA and DNA molecules. First, DNA is double-stranded, forming a double helix, while RNA is single-stranded. This means the DNA consists of two strands of nucleotides wound around each other, while RNA is just one strand of nucleotides. Second, the sugar component of the nucleotides in DNA is deoxyribose, while in RNA, it's ribose. This gives each molecule its name: DNA stands for deoxyribonucleic acid, and RNA for ribonucleic acid. Lastly, DNA and RNA differ in one of their bases: DNA contains the base thymine (T), while RNA contains the base uracil (U).
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Which of the following is true about mixtures and compounds? A. A mixture contains different substances that are not chemically combined with one another. B. Mixtures and compounds are both made of two or more different substances. C. A compound forms when different substances chemically combine to form a new substance. D. all of these
Answers
the answer is all of these.
Answer:
D
Explanation:
All of these are true about mixtures and compounds.
Mixtures and compounds are both made of two or more different substances.
The key difference between mixtures and compounds is that a compound is a new substance that forms when other substances chemically combine. The new substance that is formed has different properties from the original substances.
A mixture is simply a physical combination of two or more substances. Some of the individual properties of the original substances are retained by the mixture.
explain how a cell creates a protein using the correct sequence and at least 6 of the vocabulary words : Codon, translation, transcription, ribosome, nucleotide, bass pairs, tRNA, anticodon, amino acids, DNA, and mRNA
Answers
In order for a cell to create a protein, DNA must first be transcribed into mRNA. After the mRNA leaves the nucleus, it can be translated at a ribosome. Here, mRNA forms base pairs with a tRNA, which carries a specific amino acid. The amino acids form a long chain that makes a protein.
a third characteristic studied by gregor mendel in pea plants was smooth seeds on wrinkled seeds. he labeled the smooth S, which means that the smooth trait was
Answers
Dominant. Uppercase is dominant and lowercase is recessive.
In the enzymatic reaction, the __________ is on the left of the arrow, while the products are to the right of the arrow.
Hydrogen Peroxide --> Water + Oxygen
Answers
Answer:
The correct answer is D. reactant.In any reaction (enzymatic or non-enzymatic), reactants are mentioned on the left hand side of the arrow while products are mentioned on the right hand side of the arrow.Enzyme name is usually mentioned above the arrow. Examples are shown in the figure.
Explanation:
VERIFIED ANSWER
Anyone have the answer???????????
Answers
the answer to this question is lysosome
this image shows wind blowing a dust cloud across the Atlantic Ocean from Northern Africa. What type of movement does the image show?
please and thanks!
Answers
Answer:
B
Explanation:
Letter B
Answer:
The correct answer is option D, that is, suspension.
Explanation:
Suspension refers to the procedure that incorporates particles, that is, dust and fine dirt, which are less than 0.1 micrometers in diameter. Wind possesses the tendency to mediate these constituents over far off distances. It is possibly the most usual form of wind action and is also the easiest to determine. The suspension leads to sandblasting or abrasion. Abrasion is more robust near to the surface of the land and is less efficient with the objects present higher up the ground.
Examine the food web shown in figure 5-4. What would most likely happen to the organisms in this ecosystem if the algae began to disappear
Answers
If algae started to disappear from an ecosystem, it would negatively affect many organisms in the food web. There would be a reduction in food and oxygen for other aquatic organisms, potentially leading to their demise, and there could also be detrimental changes to the water's pH level.
Explanation:If the algae in a given ecosystem were to begin disappearing, it would have significant and potentially devastating effects on the other organisms in that system. Algae are primary producers, meaning they play a critical role in providing energy for the other organisms. When they photosynthesize, they convert sunlight into energy, which is then passed up the food chain when they are consumed by other organisms.
The absence of algae would result in the depletion of this primary source of energy, which would hinder the survival of the organisms that directly depend on them for sustenance, such as zooplankton. Over time, this effect would ripple through the rest of the food web, affecting secondary and tertiary consumers as their sources of food become scarce.
Furthermore, algae produce oxygen during photosynthesis, which is vital in aquatic ecosystems for the survival of fish and other aquatic animals. A reduction in algae would therefore lead to a decrease in oxygen levels, negatively affecting these organisms. The water's pH level could also be affected, as less carbon dioxide is being utilized by the algae for photosynthesis, leading to increased acidity and potentially harmful changes to the aquatic environment.
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which causes natural selection to occur
Answers
In one word
"Interspecific competition"... is the main cause..
i. e, Competition among different species.
Hope this helps you
Answer: The presence of predators
Explanation:
What does this diagram represent?
Answers
Answer:
A
Explanation:
When the two monosaccharides join into a disaccharide, then the reaction is called dehydration because a water molecule is expended. This is converse to hydration process where the splitting of a disaccharide into monosaccharides involves water molecule being consumed per broken bond.
Answer:
Option (A).
Explanation:
Carbohydrates are one of the most important biomolecules that are the polymers of sugar. Carbohydrates provides energy, structural support and also helps in the cell recognition.
The diagram shows the bonding between the glucose and fructose molecules (monosaccharides) to form the sucrose. The bonding occur by the release of water molecule through the dehydration synthesis.
Thus, the correct answer is option (A).
What is the shape of proteins when they exit the ribosome?
Answers
Proteins begin to fold into their three-dimensional functional shape as they exit the ribosome, with the help of chaperonins to ensure proper folding. Initially somewhat unfolded, they rapidly assume a complex structure vital for their function. Correct folding is crucial for the protein's activity.
When proteins exit the ribosome, they generally begin to assume their three-dimensional functional shape. This process is often facilitated by special proteins called chaperonins that assist in the folding of the newly synthesized polypeptide chain. Initially, the protein may be somewhat unfolded as it emerges from the ribosome's exit tunnel, but it quickly starts folding into its functional conformation.During translation, proteins are synthesized as a linear chain of amino acids, which then folds to achieve its final, complex structure. The chaperonins help ensure that the folding occurs correctly, avoiding misfolding that could lead to nonfunctional proteins. The final shape is crucial for the protein's function, as the specific three-dimensional arrangement of amino acids determines how the protein interacts with other molecules.anton was by far the strongest swimmer,and he had no excuse to....?
Answers
Answer:
Anton was by far the stronger swimmer and he had no excuse to fail
If a scientist needs to use a large dataset to explore how corn grows in different soils, how would this data be classified?
A. Descriptive B. Quantitative C. Qualitative D. Mixed methods
Answers
Answer:
Quantitative.
Explanation:
The scientist would take small samples from each soil sample and would predict that the growth stays relative throughout. Therefore the scientist is not getting an exact measurement.
Answer:
Option C, Qualitative
Explanation:
A qualitative data set consists of description of processes. These process may include measures to do something, ways to conduct some task or even impact of several factors on something.
Here, in this case scientist is dealing with a data set that talks about methods/ways/techniques to grow corns in different soil which is purely a subjective data base consisting of procedures defining the cultivation of corn in different soil types. Hence option C is the correct answer.
The periodic table houses noble gas elements in group 18. These elements are highly stable and rarely react with any other elements. What is one possible reason for the stability of the noble gas elements?
Answers
Answer:
C.
Explanation:
In section 18 the elements are the most stable because they complete themselves without having to share electrons with other elements. Does that make sense?
Answer: Option (C) is the correct answer.
Explanation:
Elements of group 18 are also known as noble gases.
And, noble gases are the gases that have completely filled outermost shells.
For example, atomic number of neon is 10 and its electronic distribution is 2, 8.
As it has completely filled outermost shell hence, it does not need to either gain or lose an electron. Therefore, elements of group 18 are chemically inactive in nature.
Thus, we can conclude that one possible reason for the stability of the noble gas elements is that their outermost shell has the maximum number of electrons that it can hold.
What artery is responsible for the transportation of oxygen-poor blood from the heart to the lungs?
carotid artery
right artery
pulmonary artery
aorta
Answers
Answer: I'm pretty sure it's C.
Explanation:
Answer: Pulmonary Artery
Explanation: pulmonary artery transports oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream
A solar system has the four planets shown below. All of them have the same mass. Four circles labeled Planet A, Planet B, Planet C, and Planet D are shown inside a rectangle. Planet A is close to the top edge of the rectangle near the middle of the top edge. Planet B is slightly below Planet A and towards the right of Planet A. Planet C is close to the left edge of the rectangle near its center. Planet D is near the right corner of the lower edge of the rectangle. Planets A and B are closest to each other and Planets D and C are farthest from each other.
Between which two planets is the gravitational attraction the strongest? Planet A and Planet B Planet A and Planet D Planet B and Planet C Planet C and Planet D
Answers
A solar system has the four planets shown below. All of them have the same mass. Four circles labeled Planet A, Planet B, Planet C, and Planet D are shown inside a rectangle.
Planet A is close to the top edge of the rectangle near the middle of the top edge. Planet B is slightly below Planet A and towards the right of Planet A.
Planet C is close to the left edge of the rectangle near its center. Planet D is near the right corner of the lower edge of the rectangle.
Planets A and B are closest to each other and Planets D and C are farthest from each other.
Between which two planets is the gravitational attraction the strongest?
Planet A & Planet B
Answer:
A and B
Explanation:
Due to them being close to each other casuing them to have a strong gravitational attraction to each other.
Hope this is helpful!
A cactus with long spines protects itself from animals better than a cactus with short spines. According to natural selection, _____.
Answers
According to natural selection, long-spined cacti...
will survive longer, defend itsself better, and reproduce more often than short-spined cacti.
Hope this helped!
Answer:
The Cactus with long spines should evolve while the cactus with short spines should extinct.
Explanation:
Natural selection was a term used by Charles Darwin to talk about the natural evolution of the species and how they adapt to different environments. The individuals within a certain type of animal or plant had variations one from each other. Those variations that can adapt to the environment in which they are placed are the ones that evolve because they live longer than the others.
In this case, the cactus with long spines will survive because it protects itself from animals better than the cactus with short spines. This last will extinct because eventually, animals will eat all of them.
I hope this answer helps you.