Answer:
when the heart pushes blood into the aorta, the blood's impact on the elastic walls creates a pressure wave that continues along the arteries
g in a phylogenetic tree, a lineage that diverges from all other members of its group early in the evolutionary history of the group is described as
A lineage that diverges from all other members of its group early in the evolutionary history of the group is described as a Basal taxon in a phylogenetic tree.
The term "basal taxon" refers to a lineage that splits off from the rest of its group early in the group's history. As a result, one of the two branches that diverge close to the group's common ancestor is where a basal taxon can be found. An assumed ancestor species from the stem line, as opposed to a terminal taxon, is what is meant by a "basal taxon." The term "basal" should never be used in any other context.
A rooted tree's branching reveals evolutionary connections. A split's so-called branch point denotes the place where a single lineage changed into a distinctive new one. The term "basal taxon" refers to an unbranched lineage that first formed from the root.
Learn to know more about Phylogenetic trees on
https://brainly.com/question/2189834
#SPJ4
5. Why is it important to flame neck of the tubes immediately after uncapping and before recapping the tubes?.
To prevent pathogen sample contamination or transmission.
Why is the loop flamed both before and after use?Why should the loop be flamed before use? after usage? Before usage, flame it to eliminate any bacteria on the loop that could contaminate your culture. Any bacteria from your bacterial transfer operations that were left on the loop are destroyed by flaming after use.
Why is it crucial to torch the tube's mouth before and after each injection?Flame the culture tube's lip very briefly. As a result, a convection current forms, forcing air out of the tube and keeping airborne contaminants out. Insert the inoculating loop and remove a loopful of inoculum while maintaining the culture tube's inclination.
To know more about flame neck visit:-
https://brainly.com/question/14549324
#SPJ4
Some dna sequences must be in cis to interact, while others can carry out their regulatory function in trans. Which pair of dna sequences are capable of functioning together in cis?.
The two DNA sequences can work together to activate the cis lacI gene or lacO operator.
For a girl, what does trans mean?A trans woman is indeed a female who was given a male gender identity at birth. Trans women identify as females, may encounter gender dysphoria, or may transfer; this process frequently entails hormone replacement and occasionally sexual reassignment surgical intervention, which can ease symptoms of gender dysphoria and put an end to them.
Who is deemed to be trans?Those whose transgender identity, gender expression, or behavior do not correspond to what is commonly associated with sex to which they were given at birth are referred to as transgender.
To know more about Trans visit:
https://brainly.com/question/17009791
#SPJ4
after our solar system began to form dust and gas combined into small bodies that formed the plants what are these small bodies called
Which ventricle is located between the right and left halves of the diencephalon?.
The third ventricle is the ventricle located between the right and left halves of the diencephalon.
The brain consists of interconnected fluid-filled cavities called ventricles. The ventricular system is composed of two lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle.
The third ventricle is a narrow funnel-shaped cavity of the brain that is located in the midline between the two hemispheres of the diencephalon of the forebrain. The third ventricle makes up the central part of the brain and facilitates communication between other ventricles.
The main function of the third ventricle is to produce, secrete, and convey CSF in the brain.
To know more about diencephalon:
https://brainly.com/question/8917225
what are the functions of sds in gel electrophoresis for estimating protein sizes? (check all that apply) group of answer choices
I and II is the correct answer
What is gel electrophoresis?Gel electrophoresis is a technique used in laboratories to molecularly separate mixtures of DNA, RNA, or proteins. it is a technique used to sort biological molecules according to size. The molecules to be separated are driven through a gel with tiny holes by an electrical field. By putting these molecules in a gel with tiny holes and applying an electric field across the gel, it is possible to separate the molecules. The negatively charged nature of DNA causes it to move toward the positively charged electrode when an electric current is supplied to the gel. Because shorter DNA strands pass through the gel more quickly than longer strands, the fragments are organized according to size.
The following list of fundamental processes for performing gel electrophoresis includes:
Pouring the gel first, getting your samples ready, the gel must be loaded, run, stained, and exposed to an electric field while doing so.
Using a technique called agarose gel electrophoresis, nucleic acid (DNA or RNA) fragments are separated according to their size
1.linearizes the protein
2.II by causing hydrogen bonds in proteins to be broken. gives proteins a general negative charge, limiting the effect of protein size
3.III on gel migration distance. allows the protein to be seen on the gel by intercalating between its amino acids.
Agarose gel electrophoresis is a form of electrophoresis used for the separation of nucleic acid (DNA or RNA) fragments based on their size.
To know more about GEL ELECTROPHORESIS visit the given link below;
https://brainly.com/question/13567299
#SPJ4
When two forces act on an object in opposite directions, how should you calculate the net force?
Answer:
the net force is equal to the difference between the two forces.
Explanation:
In other words, one force is subtracted from the other to calculate the net force
What object on earth is thousands of kilometers?
Maybe i am incorrect- but the only thing i can quite place my finger on for something THOUSANDS of kilometers is the solar system and or earth itself...Another thought that came to mind was water-there's about 1,386,000,000 cubic kilometers of water on earth.
which of the following represent non-coding dna important in the process of dna replication? a. fork traps b. tus c. hp loops d. 1 e. dnag
Tus represents non-coding DNA important in the process of DNA replication.
Thus, the correct option is B.
What is tus?Tus, аlso known аs terminus utilizаtion substаnce, is а protein thаt binds to terminаtor sequences аnd аcts аs а counter-helicаse when it comes in contаct with аn аdvаncing helicаse. The bound Tus protein effectively hаlts DNА polymerаse movement. Tus helps end DNА replicаtion in prokаryotes.
Two properties of Tus аppeаr to be importаnt: аsymmetric, high-аffinity interаctions with Ter аnd protein-protein interаctions with the leаding component of the replicаtion аppаrаtus, the helicаse DnаB.
For more information about the process of DNA replication refer to the link:
https://brainly.com/question/15113844
#SPJ4
Black fur (b) is dominant to white fur (b) in guinea pigs. An f1 cross was conducted and resulted in 100% heterozygous guinea pigs (bb). What is the genotypic ratio outcome of the f2 generation?.
Answer: 1:2:1 or 3:1 (3 black fur 1 white)
Explanation:
a substance that provokes an immune response is called an a) immunoglobulin. b) antihistamine. c) antibody. d) antigen. e) allopath.
Antigen is a chemical that causes an immunological reaction.
What compounds elicit an immunological response?Antigens are molecules, typically proteins, that are present on the surface of bacteria, viruses, fungi, and cells. Antigens can also be made up of nonliving materials like poisons, chemicals, medications, and foreign objects (like splinters). Antigen-containing compounds are recognized by the immune system, which then attempts to destroy them.
What is the immunological reaction known as?The primary goal of the innate immune response is to stop the migration and spread of foreign pathogens within the body as soon as possible. The adaptive immune response is the second line of protection against external infections.
To know more about antigen visit:-
https://brainly.com/question/15694610
#SPJ4
Based on experiments similar to these, gregor mendel devised a theory of inheritance. use your own observations to come up with your own explanation of how a trait such as fur color is passed down from parents to offspring. if possible, discuss your theory with your classmates and teacher.
Fur colour is passed down to the offspring with the help of an independent assortment of genes. Depending on the dominance of the gene, the trait is expressed.
What is Mendel's law of inheritance?
Mendel proposed three laws regarding inheritance, such as the rule of dominance, the law of segregation, and the law of independent assortment. The genes responsible for fur colour have two variants (alleles), one dominant and one recessive.
The allele segregates independently during gamete formation according to the rule of segregation. The alleles pass to offspring by the law of independent assortment. In this way, the colour of the fur is expressed.
Hence, fur colour is passed down to the offspring with the help of these Mendelian laws.
Click here to learn more about Mendelian laws.
https://brainly.com/question/23067535
# SPJ1
compare the nervous system to a computer. why is this important for the medical assistant to understand?
The nervous system functions like a network that sends messages to various parts of the body, and the brain functions like a computer that regulates how the body operates.
Researching the nervous system enhances our knowledge of our underlying biology and physical processes. Having a basic understanding of how things work might help make potential consequences more clear. It can help scientists find solutions to problems affecting the body, nervous system, and brain.
The Central Processing Unit (CPU) and the human brain are comparable (CPU). The information acquired by the sensory neurons is processed by the brain, which then issues instructions to the particular organ to function accordingly. Finally, motor neurons that resemble output devices select the message.
To learn more about the nervous system
https://brainly.com/question/29355295
#SPJ4
which of the following is a characteristic of glycogen? a. it helps sustain the body's cellular activities. b. it is not released from the liver in any case. c. it is stored in adipose cells. d. it represents a three-day supply of glucose. e. it is stored for the body's amino acid needs.
Glycogen is a polymer of glucose. It is required for the body's ongoing need for glucose to sustain work. It represents a three-day supply of glucose. Thus, the correct option is D.
What is Glycogen?Glycogen molecule is a multi-branched polysaccharide of glucose which serves as a form of energy storage in the body of animals, fungi, and bacteria. The structure of glycogen represents the main storage form of glucose in the body, it is used to produce glucose and hence energy in the form of ATP to do work.
The body mainly uses the glycogen stored in the liver to help regulate blood glucose (sugar) levels. Body normally regulates the blood glucose level carefully primarily with the hormones such as glucagon and insulin.
Therefore, the correct option is D.
Learn more about Glycogen here:
https://brainly.com/question/7781420
#SPJ1
Why was the evolution of cuticle so important during the evolution of land plants?.
Though not all tumors or polyps bleed, occult blood in the stool may be an indication of colon cancer or polyps in the colon or rectum.
What causes occult blood in stool the most frequently?Small bowel tumors, esophagitis, peptic ulcers, gastritis, inflammatory bowel disease, vascular ectasias, portal hypertensive gastropathy, and colon cancer are a few of the more prevalent causes (eg, GI stromal cell tumor, lymphoma, carcinoid, adenocarcinoma, or polyp)
If the fecal occult blood test results are positive, blood has been discovered in the stool. Your doctor will need to identify the cause of the bleeding, either by doing a colonoscopy or by performing an examination to establish if the stomach or small intestine is the source of the bleeding.
learn more about colon cancer refer
https://brainly.com/question/16294074
#SPJ4
Is an inherited condition that causes individuals to absorb and accumulate too much iron? hemochromatosis hematocrit absorption syndrome hyperferritosis reverse anemia
Hemochromatosis is an inherited condition that causes individuals to absorb and accumulate too much iron. Thus, the correct option for this question is A.
What is Inheritance?An inheritance may be defined as the process through which characters or traits are transferred from one generation to the next generation in the form of factors (genes).
Hereditary hemochromatosis is an inherited condition that significantly causes your body to absorb too much iron from the food that you may eat. This excessive amount of iron gets stored in your organs, especially your liver, heart, and pancreas and causes too many problems in the normal functioning of these organs.
Therefore, hemochromatosis is an inherited condition that causes individuals to absorb and accumulate too much iron. Thus, the correct option for this question is A.
To learn more about Inheritance, refer to the link:
https://brainly.com/question/15078897
#SPJ1
Table 5.3 Patterns and relationships between life expectancy and World Development Indicators
Pattern or trend that the graph
shows
World Development Indicator
5 What factors affect human health?
Relationship between geography
and health that the graph suggests
A variety of specific and general measures, including as per capita income, life expectancy, education levels, and the severity of poverty, can be used to determine how much a nation has evolved.
What are the top three factors that define a country's degree of development?The United Nations created the (HDI), a statistical metric (composite index), to evaluate the social and economic progress of nations throughout the world. The three human development indicators that are taken into account by the HDI are per capita income, education, and life expectancy.
Gross domestic product, or GDP, which measures the "output" or total market value of goods and services generated in the domestic economy over a specific time period, is the most comprehensive indicator of overall economic performance.
Learn more about World Development Indicator refer
https://brainly.com/question/26411551
#SPJ4
a cell has a mutation that results in higher levels of phosphorylated proteins than normal cells without the mutation. what kind of mutation could have occurred and what reasoning leads to this claim?
A sensitive and dynamic method of controlling protein activity, stability, protein interaction, and subcellular localization is furnished by phosphorylation. Multiple kinases regularly goal worldwide regulators, converting the expression of numerous genes.
Kinase mutations can deactivate apoptotic pathways, prompt proliferative pathways that disrupt cellular cycle checkpoints and cause genomic instability, inhibit or dispose of DNA harm response, boom angiogenesis and cellular motility, or all the above. Kinase mutations can lower or abolish the DNA harm response, boom angiogenesis and cellular motility, prompt proliferative pathways that damage cellular cycle checkpoints and cause genomic instability, or do all the above. Hanks-kind kinases and phosphatases are utilized by micro organism for sign transduction, much like eukaryotes, and protein phosphorylation is worried in loads of cell processes.
To learn more about phosphorylation, click here:
https://brainly.com/question/11703482
#SPJ4
Please help and in 6th grade words
Give one example of a question that science would not be able to test. Then, explain how it could be changed into a testable question.
The example of a question that science would not be able to test is that a testable question is the one which can be tested on the basis of experimentation and a non-testable question is the one which cannot be tested experimentally.
What is the process of asking question to a 6th grade student?The process of asking question to a 6th grade student that 6th grade science teacher gives a test every 12 days and the math teacher gives a test every 9 days. Today, both the science and math are giving tests. We need to find In how many days will the science and math teachers both give tests on the same day again.
It's given that science teacher gives a test every 12 days and the math teacher gives a test every 9 days . In order to find the number of days after which they'll give test at same day , we will find LCM of 12 & 9 . i.e.
Therefore, The example of a question that science would not be able to test is that a testable question is the one which can be tested on the basis of experimentation and a non-testable question is the one which cannot be tested experimentally.
Learn more about testable question on:
https://brainly.com/question/11543482
#SPJ1
(Translation)
(transcription)
is similar to the DNA process of replication, but only one strand of nucleotides is formed. DNA is used as a template to make messenger RNA (mRNA). The mRNA carries the genetic information from DNA to ribosomes in the cytoplasm.
(Translation)
(transcription)
is the process of converting the information in the mRNA into a sequence of amino acids that make proteins.
The answers include the following below:
Transcription is similar to the DNA process of replication, but only one strand of nucleotides is formed.Translation is the process of converting the information in the mRNA into a sequence of amino acids that make proteins.What is DNA?This is referred to as deoxyribonucleic acid and it is known as the genetic material of most living organisms and it ensures that traits are passed from the parent to the offspring during reproduction.
Transcription involves the making a copy of RNA from the DNA while translation involves creating proteins from an mRNA template.
Read more about DNA here https://brainly.com/question/1328358
#SPJ1
Single-celled organisms utilize organelles to maintain homeostasis, while large multicellular organisms, such as humans, use organs to maintain homeostasis. How are organelles and organs similar?.
A single-celled (unicellular) organism's need for homeostasis is especially crucial since it must coexist with its environment and all of the internal functions that keep it alive.
What connection exists between multicellular creatures with specialised cell types and homeostasis?Multicellular organisms develop cell specialisation for specific functions and intercellular communication to maintain equilibrium. Multicellular organisms' specialised cells are arranged first into tissues, then into organs, and lastly into organ systems.
Living things require homeostasis because it facilitates the body's orderly operation. It allows the body to keep its internal temperature at a level that supports the body's enzymes in doing their jobs. The balance of electrolytes and proper blood pressure are two examples of homeostasis.
learn more about homeostasis refer
https://brainly.com/question/1673915
#SPJ4
plants are photoautotrophs. what does this mean? view available hint(s)for part a plants are photoautotrophs. what does this mean? they are attracted to light. they synthesize their own food from inorganic materials. they are the primary consumers of the biosphere. they generate oxygen. they use light energy to drive the synthesis of organic molecules from inorganic materials.
Plants are also photoautotrophs, a sort of autotroph that uses sunlight and carbon from carbon dioxide to synthesize chemical power within the form of carbohydrates. All organisms wearing out photosynthesis require daylight.
A photosynthetic organism (consisting of an inexperienced plant or a cyanobacterium) that utilizes strength from light to synthesize organic molecules.
Photoautotrophs are organisms that carry out photosynthesis. the usage of electricity from daylight, carbon dioxide, and water are transformed into organic materials for use in cellular features which include biosynthesis and breathing.
Learn more about photoautotrophs here
https://brainly.com/question/10841575
#SPJ4
if you have a population of 1000 naive b-cells, how many types of antibody variable regions could be produced by that population?
If you have a population of 1000 naive b-cells Each naive B cell when exposed to antigen gets activated.
(see) In biology, the smallest unit that could stay on its own and that makes up all residing organisms and the tissues of the body. Mobile has three most important parts: the cellular membrane, the nucleus, and the cytoplasm. The mobile membrane surrounds the cell and controls the substances that pass into and out of the cell.
Cells are the simple building blocks of all living matter. The human body consists of trillions of cells. They provide shape for the frame, absorb vitamins from food, convert one's vitamins into strength, and carry out specialized features.
A cellular includes 3 components: the cellular membrane, the nucleus, and, between the two, the cytoplasm. inside the cytoplasm lie tricky arrangements of fine fibers and loads or maybe lots of minuscule but wonderful structures known as organelles.
Learn more about cells here:
https://brainly.com/question/13920046
#SPJ4
Select the correct answer from each drop-down menu.
The lac operon in E.coli regulates genes that code for enzymes required for breakdown of lactose. The lac operon is
operon in that is activated in the presence of
Answer:
The lac operon in E.coli regulates genes that code for enzymes required
for breakdown of lactose. The lac operon is an inducible operon that is
activated in the presence of lactose.
Hope this helps! :)
When mutated cells ignore checkpoints, they reproduce uncontrollably, forming tumors. During which stage of the cell cycle does the cell divide into two cells?.
A cell divides into two cells during the M stage (mitosis) of the cell cycle.
In contrast to meiosis, which creates four different daughter cells, this type of cell division includes the parent cell producing two identical daughter cells.
Two main processes are involved in cell division, also known as the mitotic phase, or M phase, which produces the production of two new cells by dividing the cell's copy DNA and cytoplasm.
An organism's development is aided by mitosis. Mitosis is the process of asexual reproduction in single-celled organisms.
Damaged tissues can be replaced with new ones thanks to. When the surrounding cells cannot sense the damaged cells, mitosis starts in those cells. The cells that are dividing eventually overlap and cover the harmed cells.
For more information on Mitosis, visit :
https://brainly.com/question/26678449
#SPJ4
Answer: M
Explanation: its M source trust me bro
In the citric acid cycle, the acetyl group is removed from acetyl coa and attached to oxaloacetate to form.
In the citric acid cycle, the acetyl group is removed from acetyl coa and attached to oxaloacetate to form Citrate
What is citric acid cycle ?The Krebs or citric acid cycle, also referred to as the tricarboxylic acid (TCA) cycle, is the primary source of energy for cells and a critical step in aerobic respiration. The cycle converts the acetyl coenzyme A (acetyl CoA) chemical energy into nicotinamide adenine dinucleotide (NAD)'s reducing power.
The final common oxidative pathway for carbohydrates, fats, and amino acids is the citric acid cycle. It is the most significant metabolic pathway for the body's energy supply. The most significant central pathway bridging almost all of the individual metabolic pathways is TCA.Learn more about Citric acid cycle here:
https://brainly.com/question/14900762
#SPJ4
describe how th morgan figured out the white gene (that codes for eye color in fruit flies) was located on the x chromosome. to do this, trace the logic of the crosses he did.
Morgan figured out two crosses.
In the First cross he used true phenotype of red-eyed and white-eyed flies , The flies with White eyes reappeared in the next generation, but only in males. While all females have red-eyes, and among the males, the ratio of red: white in ration whites eyes is 1:1.
In the Second cross he used cross between red female and white eyed male flies. This trait Appear in both sexes in the ratio red: white of 1:1.
In the experiment Morgan observed that the mutation was inherited differently by male and female flies. Morgan concluded that the eye color gene must be located on the X chromosome.
To learn more about Mutation , here
brainly.com/question/13923224
#SPJ4
Please Answer all questions
1.
Observe the geologic cross section. Which layer is the oldest?
A
F
G
K
2.
What would you classify F as?
intrusion
inclusion
rock layer
fault
3.
Which of the following unconformities are present in this geologic cross section?
disconformity
angular unconformity
nonconformity
4.
J(Zoroaster granite) is older than F (basalt).
True
False
5.
Which stratigraphy principle(s) is/are used to determine the history of this cross section? (select all that apply)
Principle of Original Horizontality
Principle of Superposition
Principle of Lateral Continuity
Principle of Cross-Cutting Relationships
6.
What is the geologic history of this cross section?
Time to summarize the history of this geologic cross section. When writing about layers, you may refer to them by their designated letter (i.e. K) or the layer name (i.e. Vishnu Schist). Be sure to write in full, complete sentences using proper grammar and punctuation.
The chronology of the cross-section of rocks strata is given as follows:
From the marked geologic cross-section, the oldest layer is K. K, which represents Schist - a Metamorphic rock. (Option D)F can be classified as an intrusion (Option A)The unconformity that is present in the geologic cross section is "angular unconformity" (Option B) This is shown in layers (ABCDLE)It is true to state that J is older than F.The stratigraphy principles used to determine the history of this cross-section are Options A, B, C, and D.The geologic history of the cross-section is such that:According to the principle of Superposition, the history of the geologic cross-section from oldest to youngest is given as follows:
KJMELDCBAFIH andG.What is the principle of superposition?The law of superposition is a geological principle that geologists use to determine the relative ages of rock strata or layers. Layers of rock are overlaid or laid down one on top of another in this notion. The oldest layers of rock will be at the bottom, followed by the youngest.
Alternatively, the superposition rule is a key notion of stratigraphy that asserts that the oldest layer is at the bottom of a series of sedimentary rock layers and the layers are gradually younger with ascending order in the sequence.
Learn more about Superposition:
https://brainly.com/question/2069576
#SPJ1
i need this as soon as possible
Answer:
1.True
2.True
3.True
4.False
5.True
6. True
7.True
8.True
9.True
10.True
11.False
12.True
13.True
14.False
15.True
Explanation:
Carry on itAn individual having two different alleles of a specific gene is described as being _________ for that specific trait.
Answer:
Heterozygous
Explanation:
