The feature that Platyhelminthes and Nematodes have that makes it different from the other branches of the tree are
Presence of flame cells. Ladder-like nervous system. Presence of parenchyma in the body cavityPlatyhelminthes and Nematodes are in a separate branch because of both of them have bilateral symmetry. They also have a central nervous system.
What is the nervous system?The nervous system is described as a highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body.
The functions of the nervous system in any organism includ ethe following:\
They Control the body's internal environment to maintain 'homeostasis'They are in charge of Programming of spinal cord reflexes. The nervous system is used in Memory and learningVoluntary control of movementLearn more about the nervous system at: https://brainly.com/question/869589#
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Match the event with the most appropriate term.
different species of shrimp evolving on either side of the Isthmus of Panama
a flowering plant that produces a polyploid cell that can self-fertilize and produce a new species
hard shells that allow reptiles to lay eggs on land
the physical disparity in size between male and female gorillas
more white-coated hares appeared compared to brown-coated hares during an ice age
The Match of the event with the most appropriate term are:
Allopatric speciation- different species of shrimp evolving on either side of the Isthmus of PanamaSympatric speciation- a flowering plant that produces a polyploid cell that can self-fertilize and produce a new speciesBalanced polymorphism- hard shells that allow reptiles to lay eggs on landKey innovation - the physical disparity in size between male and female gorillasDirectional selection -more white-coated hares appeared compared to brown-coated hares during an ice ageWhat is directional selection?When those with qualities that are on one side of the population's mean survive longer or reproduce more than those on the other, this is known as directional selection. It has been repeatedly shown in wild populations using both experimental and observational methods.
Due to the fact that people who possess both forms of a gene are more likely to survive than people who only have two copies of one version, balanced polymorphism occurs when two distinct versions of a gene are kept in a population of organisms.
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Give one piece of evidence to support the claim that these are planetary nebulae?
One piece of evidence that shows that the above images are planetary nebulae is their emission-line spectrum.
What are planetary Nebulae?A planetary nebula is a form of emission nebula composed of an expanding, bright disk of ionized gas expelled late in the lifetimes of red giant stars. The phrase "planetary nebula" is misleading because they have nothing to do with planets.
The emission-line spectra of planetary nebulae is commonly used to identify them. The most recent discoveries of new planetary nebulae have resulted from imaging scans of the Galaxy employing a narrow-band filter centered on the hydrogen Hα line. This permits emission nebulae to be distinguished from stars.
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Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively.
Which student must derive a unit of measurement?
Kim
Jill
Bob
Steve
Answer: JiLL
Explanation:
Please help. 30 Points!!
Explain in your own words what is meant by one of the diagrams below, you only need to choose 1 to talk about. Share as much detail as you can.
The images show a pictorial description of parts of the carbon cycle.
Carbon cycleThe carbon cycle shows the flux of carbon between the living and non-living components of the ecosystem.
In the first and second images, carbon is released into the atmosphere as carbon dioxide from the respiratory activities of living organisms - Albert Estein and T-Rex.
This carbon in the atmosphere is made use of by plants in a process known as photosynthesis. Plants are able to fix carbon into carbohydrates using this process.
Humans are able to get carbon directly from plants by consuming plant produce or indirectly by consuming the meat of organisms that feed primarily on plants themselves.
Thus, the above explains the illustrations in the image.
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Consider a signaling protein that is only made up of one SH2 domain and two SH3 domains. This protein is most likely:_____.
A. a monomeric G protein.
B. a guanine nucleotide exchange factor.
C. a kinase associated with receptor tyrosine kinase signaling.
D. an adaptor protein.
E. a negative regulator of receptor tyrosine kinase signaling.
Consider a signaling protein that is only made up of one SH2 domain and two SH3 domains. This protein is most likely to be a monomeric G protein.
What is monomeric G protein?Monomeric G-proteins, also known as small GTPases, act as biological hubs that are triggered by extracellular inputs and control the subsequent signaling processes that control various cellular reactions.
The fact that various clinical disorders, such as allergic asthma, are connected to disrupted GTPase signaling, which reflects the significance of these pathways.
The function of monomeric G-proteins and their effectors in airway (patho)physiology has thus received attention. In this article, we discuss our current understanding of the control and roles of Ras and Rho GTPase signaling in the pulmonary system under healthy and pathological circumstances.
Therefore, Consider a signaling protein that is only made up of one SH2 domain and two SH3 domains. This protein is most likely to be a monomeric G protein.
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Which human activity would most likely decrease the amount of carbon in the atmosphere?
A. clearing forests
B. heating coal
C. burning wood
D. planting trees
Answer:
[tex]\huge\boxed{\sf Option\ D.}[/tex]
Explanation:
Trees absorb carbon dioxide and release oxygen. In this case, carbon dioxide in the atmosphere decreases and oxygen in the atmosphere increases.
Hence, we should plant more trees in order to decrease the amount of carbon dioxide in the atmosphere which is the main cause of global warming.
[tex]\rule[225]{225}{2}[/tex]
The fourth option.
Also known as "D."
I chose this option because as trees grow, they remove Carbon Dioxide from the atmosphere. Carbon Dioxide is used in a process called "Photosynthesis" in which plants make there own food using Carbon Dioxide, sunlight, nutrients from the soil, water, etc.
The product produced would be Glucose and Oxygen.
Since Carbon Dioxide would be taken from the plants to make food and breathe, the level of Carbon in the atmosphere would definitely decrease!
which of the following occurs during interphase? group of answer choices sister chromatids separate. chromosome duplication occurs. the mitotic spindle forms. chromatin becomes tightly coiled.
The event that occurs during interphase is as follows: chromosome duplication occurs (option B).
What is interphase?Interphase is the stage in the life cycle of a cell between two successive mitotic or meiotic divisions.
Interphase is the longest stage in the cell cycle. During interphase, the cell acquires nutrients, creates and uses proteins and other molecules, and starts the process of cell division by replicating the genetic material (DNA).
Interphase is divided into three distinct stages namely;
Gap 1 (G1)Synthesis (S)Gap 2 (G2)The purpose of interphase in all cell types is to prepare for cell division, which happens in a different stage of the cell cycle.
Therefore, the chromosome duplicates during interphase stage.
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Which of the following are true of epigenetic changes?
a. allow DNA to be transcribed
b. move histones to open or close a chromosomal region
c. are temporary
d. all of the above
If transcription of this gene occurs from left to right in the accompanying diagram, which DNA strand is the coding (non-template) strand? impossible to determine B C D E
photophosphorylation in photosynthesis is most similar to which of the following processes associated with cellular respiration?
Photophosphorylation in photosynthesis is most similar to the process of the electron transport chain associated with cellular respiration.
What is aerobic respiration?Aerobic respiration is the process by which the body breaks down large food molecules to produce energy in the form of ATP in the presence of oxygen.
In aerobic respiration, electrons are transferred to oxygen as the final electron acceptor.
Aerobic respiration occurs in animals.
Aerobic respiration consists of the following steps:
glycolysis - in this process glucose is broken down into two molecules of pyruvatepyruvate oxidation - in this process, pyruvate is oxidized to acetyl CoAcitric acid cycle - acetyl CoA is used to produce reducing equivalents., NADH and FADH₂ electron transport chain - electrons are transferred to oxygen by the reducing equivalents., NADH and FADH₂Learn more about aerobic respiration at: https://brainly.com/question/2533739
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describe the one-gene, one polypeptide hypothesis and list some of the evidence in favor of it.
Genes specify the structure of enzymes, and each gene encodes the structure of one enzyme .
What are many genes accounted for?Many genes accounted for single polypeptide chains of a protein comprised of multiple chains. It states that the function of an individual gene is to made the production of a specific enzyme.
Scientist name Beadle and Tatum proposed this after demonstrating the relationship between genes and enzymes through experiments with Neurospora, which was mutated and grown on different growth mediums.
Hence, one gene-one polypeptide hypothesis states that one gene controls the production of only one polypeptide chain of an enzyme molecule.
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1. how does glycolysis connect to other metabolic paths? is it isolated? how many reactions take place in glycolysis? which are irreversible? what does this mean?
1. Glycolysis is connected to the breakdown and synthesis of carbohydrates, proteins, and lipids such as hexosamine biosynthesis, oxidative pentose phosphate pathway, serine biosynthesis, and tricarboxylic acid.
2. Glycolysis is not isolated but is connected to other metabolic pathways.
3. There are ten reaction steps in glycolysis.
4. The irreversible reactions of glycolysis are the reactions catalyzed by the enzymes hexokinase; phosphofructokinase; pyruvate kinase.
5. The term irreversible means that the reaction can only proceed in the formation of products but the products cannot form the substrates.
What is glycolysis?Glycolysis is the process by which glucose molecules are broken down to produce two pyruvate molecules.
The reactions of glycolysis are 10 enzyme-catalyzed reactions. During the reaction steps of glycolysis, the product of one reaction step becomes the substrate of the next step,
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Turners syndrome is a
result of which of the
following nondisjunction
mutations?
A. only an X chromosome this is answer
B. three copies of the 21st chromosome
C. two X chromosomes and a Y
D. deletion of chromosome 5
Answer:-
Only a X chromosome.[tex]\Large{\underline{\sf Turner's \ Syndrome }}[/tex]
This disorder is caused due to the fusion if an normal sperm with an abnormal egg or of a abnormal sperm with a normal egg, both of which results in 22 + X0 condition.The females have rudimentary ovaries and hence are sterile and also lack secondary sexual characters.Some other chromosomal disorders are:-
Down's syndrome - Caused due to trisomy of 21st chromosome .Klinefelter's syndrome - Due to presence of additional copy of a X chromosome.hy should it not be surprising that for many cells water requires a protein for its transport across a membrane?
It is not surprising that for many cells water requires a protein for its transport across a membrane because aquaporins help to maintain the concentration gradient of solutes across the membrane.
What are aquaporin channel proteins?The aquaporin channel proteins are specific proteins in the plasma membrane that allow the passage of water molecules in favor of concentration gradient, a process known as facilitated diffusion.
Therefore, with this data, we can see that aquaporin channel proteins are required to move water and thus they help to maintain the homeostatic internal equilibrium of the cell.
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How is the nitrogen cycle important to humans?
A.It produces free nitrogen that humans can breathe.
B.It converts nitrogen into a form that humans can obtain by eating other organisms.
C. It produces nitrogen compounds that humans can breathe.
D. It converts nitrogen into a form that humans can obtain by absorbing it through their skin.
The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).
What is the nitrogen cycle?Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.
The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.
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Which of the following statements best helps justify the inclusion of group 2 as one of the controls in the experiment?
A) I will show whether the changes observed in group 1 depend on the metabolic activity of Boll bacteria
B) will show whether the changes observed in group 1 depend on the type of plants used in the experiment.
C) It will show the average growth rate of seedings that are maintained in a nonsterile environment
D) I will show the changes that occur in the roots of seedlings following an infection by soll bacteria.
The statement that best help to justify the inclusion of group 2 as one of the controls in the experiment is:
will show whether the changes observed in group 1 depend on the metabolic activity of Boll bacteria: option A.What are controls in an experiment?Controls are variables or factors introduced in a study that does not receive the treatment given to the study group.
The controls in an experiment are kept at a constant or neutral state.
Controls are added in order to eliminate bias in the results of the experiment.
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which of the following is an acceptable definition of an adaptation among biologists?
a phenotypic variant that results in the highest fitness among a specified set of variants in a given environment.
a derived character that evolved in response to a specific selective agent.
a trait that evolved by natural selection for a particular function (because it increases fitness) from an ancestor that did not have that trait.
all of these are acceptable definitions.
All the above options are acceptable definitions of adaptation among biologists (option D).
What is adaptation in biology?Adaptation in biology is any change that is made or undergone to suit a condition or environment. It is the process of change that an organism undergoes to be better suited to its environment.
An adaptation can either be structural or behavioural. Structural adaptation are those physical features of an organism that help them to survive in the environment while behavioural adaptation are the changes undergone by the organism to suit its environment.
Therefore, based on the above explanation, it can be said that the following are all correct definitions of adaptation in biology;
A phenotypic variant that results in the highest fitness among a specified set of variants in a given environment. A derived character that evolved in response to a specific selective agent. A trait that evolved by natural selection for a particular function (because it increases fitness) from an ancestor that did not have that trait.Learn more about adaptation at: https://brainly.com/question/10852445
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How does blood perform the function of regulation in the body?
One of the key functions of blood is regulation. The blood helps to maintain the internal conditions within the body when external conditions outside of the body change or when other factors like illness or exercise are affecting the body. The process of thermoregulation maintains optimum body temperature.
Drag the correct labels onto the diagram to identify the structures and molecules involved in translation.
In the diagram, a represents mRNA, b represents the small subunit of the ribosome, c represents the large subunit of the ribosome, d represents an amino acid, e represents tRNA, and f represents the anticodon that represents the codon on the mRNA. This depicts the translation process.
What are the requirements for the translation?Translation is the process by which a polypeptide chain is formed by reading the mRNA and expressing the gene that is present on the DNA. To carry out this process, mRNA, tRNA, amino acids, small and large units of ribosomes, etc. are required. The ribosome's small subunit is attached to the mRNA, and tRNA gains access to the mRNA and carries out the process of polypeptide chain synthesis.
Hence in the diagram, a is mRNA, b is the small subunit of the ribosome, c is the large subunit, d is an amino acid, e is tRNA, and f is an anticodon.
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Suppose that a portion of double-stranded DNA in the middle of a large gene is being transcribed by an RNA polymerase. As the polymerase moves through the sequence of six bases shown in the diagram below, what is the corresponding sequence of bases in the RNA that is produced?
Suppose that a portion of double-stranded DNA in t
Enter the sequence of bases as capital letters with no spaces and no punctuation. Begin with the first base added to the growing RNA strand, and end with the last base added.
The gene is transcribed by the RNA polymerase to form the mRNA, and the synthesis is from the 5' to the 3'. When the gene is transcribed, the sequence is 5' UGAGCC 3'. This is done by the transcription.
What is transcription and mRNA formation?
The transcription starts from the 5' to the 3' direction with the help of RNA polymerase by adding nucleotides. As the template's starting sequence is 5' GGCTCA 3', the RNA polymerase reads the strand from last and makes the strand 5' UGAGCC 3'. The protein is then formed from this mRNA.
Hence, the sequence is 5' "UGAGCC" 3' from the DNA template 5' GGCTCA 3'.
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1). A population of termites has settled in the trunk of a large healthy tree. After a few weeks,
the trunk softens and the tree collapses. What type of interdependence is this?
The type of interdependence where a population of termites has settled in the trunk of a large healthy tree but after a few weeks, the trunk softens and the tree collapses is: parasitism.
Interdependence is the relation and effect of two individuals upon each other in an environment. This interaction can be between two individuals of same species or of different species. The different types of interdependence are: mutualism, commensalism, amensalism, parasitism, etc.
Parasitism is the type of interaction where one organism gets benefitted from another organism but the other one suffers damage in the interaction. For example, tapeworms found in the intestine of animals.
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What does Malthus mean when he writes about the “oscillation” between “progressive and retrograde forces with respect to happiness”?
The exponential population increase and arithmetic food supply growth are theories within the Malthusian Theory of Population. Thomas Robert Malthus made the idea for the theory.
What is Criticism of Malthusian Theory of Population?Based on the following findings, the Malthusian theory has been criticized:
Rapid population growth was occurring in Western Europe. In parallel, technological advancements had also led to an increase in the food supply.The population has frequently increased faster than food production. For instance, in the US, the agricultural sector employs 2% of the total workforce. The GDP as a whole is still over $14 trillion.According to him, positive and preventive checks can help achieve a balance between population increase and food availability.According to Malthus' theory, a lack of land is one of the factors contributing to a limited food supply. But as globalization has progressed, more food is now available in more nations.Malthus didn't provide any estimates for the population's geometric or arithmetic growth. The rate of growth, according to some, does not support Malthus' theory.To Learn more About Malthusian Theory refer to :
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Which of the following statements about insulin or it’s effects on the body are true?
What advantage do eyes in front of the head have?
Better resolution
Wider field of view
Better contrast detection
Better depth perception
Safety has been called a “dynamic non-event” because when humans are in a potentially hazardous environment:
Safety has been called a “dynamic non-event” because when humans are in a potentially hazardous environment, it takes significant work to ensure nothing bad happens.
What is safety?Safety is described as the state of being "safe", the condition of being protected from harm or other danger. Safety can also refer to the control of recognized hazards in order to achieve an acceptable level of risk.
Therefore safety has been described as a "dynamic non-event because in order for this "non-event" of nothing going wrong to occur, a lot of things must be done right.
Hence our best answer is that it takes significant work to ensure that nothing bad happens. When things go right in a potentially hazardous environment, nothing bad happens.
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What is endocytosis?
O the energy-using process in which macromolecules are taken into the cell
O the process in which ions are transported from extracellular fluid to the cell
O the process in which molecules move from areas of higher concentration to areas of lower concentration
O the energy-using process in which macromolecules secreted by the cell are released
Answer: a
Explanation:
Please type the correct vocab word in the blank.
The description of the terms in the word bank are:
In this model of galaxy creation, clouds of gas collapse around denser areas - Inside-out modelgalaxies that have the most gas and dust and the youngest stars: Irregular galaxies.the leftover core of a massive star after a supernova that is so dense that not even light can escape it: * black holeonly about 5% of the matter in our universe is ordinary matter called: baryonic matterWhat are galaxies?Galaxies are huge collections of gas, dust, and billions of stars as well as their solar systems, that are all held together by gravitational forces of attraction.
There are three types of galaxies: elliptical, spiral and irregular agalxies
The Milky Way galaxy is a spiral galaxy and is the galaxy where our solar system is found.
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Onto which structure of the femur does the highlighted muscle have an insertion?
lateral condyle
linea aspera
patellar surface
lateral epicondyle
The structure that is present in the lateral muscle is linea aspera. It is showing the insertion in the part of the femur.
What is the longest bone name in the human body ?The longest bone in the human body is called as femur.
Linea aspera is the bone that is having the following parts :
1. rough
2. longitudinal
3. irregular crest on the posterior surface of the shaft of the femur.
The formation of the muscle is done by the joining of lateral and medial lips. From the lateral lip and the above of them is vastus medialis.
The muscles which are attached to the linea aspera are :
1. pectineus.
2. adductor minimus.
3. adductor brevis.
4. adductor longus.
5. adductor magnus (hamstrings part)
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May I have help on This question please I’ll give you brainliest no links or I will report you
Option B. Pour the drinks into the plain paper cups as blind trials.
A sort of scientific trial wherein neither the contributors nor the researcher is aware of which remedy or intervention participants are receiving till the clinical trial is over. This makes the consequences of the study much less probably to be biased. The blind trials is a test of belief and verbal exchange. a group is blindfolded and then led around the path beneath the instruction of one or more people.
A blind trial examination is one in which neither the individuals nor the experimenters recognize who's receiving a particular treatment. This manner is applied to prevent bias in studies results. Double-blind research is especially beneficial for stopping bias because of the call for traits or the placebo impact.
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Energy conservation means
a.
slowing down a chemical change.
b.
burning a fuel to release energy.
c.
using fossil fuels to produce electricity.
d.
reducing energy use.
Answer:
D) Reducing Energy Use
Explanation:
Conserve means to avoid using something wastefully or destructively.
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