Answer:
Cell membrane
Explanation:
The cell membrane is the outer lining of the cell which allows materials to enter and leave the cell.
most vectors have a second genetic marker that is made non-functional if an insert is in the multiple-cloning site. this disruption of the marker's function is called
Recombinant DNA refers to a vector that contains foreign DNA. Cosmids, viral vectors, plasmids, and synthetic chromosomes are the four main categories of vectors.
What two objects are typically employed in genetic engineering as vectors?Plasmids and bacteriophages are the two most used kinds of vectors. Plasmids are circular DNA molecules with one or more genes that are present inside the bacterial cell independently. The host bacteria depends on these genes in a significant way.
The bacterial colonies with the recombinant plasmids and colonies without them are mixed together while copying a gene using plasmid vectors. All the colonies have the same appearance, but some have adopted the plasmids containing the human gene, while others have not.
These were the original gene cloning vectors. These are present in eukaryotes, archaea, and bacteria. These DNA molecules are self-replicating, extrachromosomal, natural molecules.
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why are turtles not classified under arthropods even though they have a shell ?
Answer:
Turtles aren't classified as arthropods even though they have a shell because they have an internal backbone (spine), and their shoulder blades are inside their ribs.
Explanation:
Arthropods are invertebrate animals of the large phylum Arthropoda. An example of an arthropod would be a spider.
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This “International Code” sets specific rules to help decide new scientific names or changes of names.
International Union of Applied Chemistry and Physics
International Units of Measure and Mass
International Code of Nomenclature
International Code of Ethics
International Code of Nomenclature is the International Code sets specific rules to help decide new scientific names or changes of names.
The International Code of Nomenclature for algae, fungi, and plants is the set of rules and recommendations that govern the scientific naming of all organisms traditionally treated as algae, fungi, or plants.
The rules and recommendations have one fundamental aim to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise. The code is meant to guide only the nomenclature of animals, while leaving zoologists freedom in classifying new taxa.
Scientific names is called a binomial name. The generic name or the initial part of the name highlights the genus to which an organism belongs.
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Certain b vitamins participate in chemical reactions that release energy from which compounds?.
B vitamins participate in chemical reactions that release energy from carbohydrates compounds.
Vitamin B aids a wide range of enzymes in their functions, including transporting oxygen and energy-rich nutrients throughout the body, breaking down into products of amino acids, and releasing energy from fats and carbohydrates.
Cells in the body use thiamin (vitamin B1) to convert carbohydrates into energy. Carbohydrates primarily serve to supply the body, particularly the brain and nervous system, with energy. Additionally, muscle contraction and nerve signal transmission require thiamin.
Coenzymes include thiamin, niacin, pantothenic acid, biotin, and niacin, all of which aid enzymes in the breakdown of carbohydrates, fats, and proteins into energy. Amino acids, folate, and vitamin B12 aid in cell proliferation (cells in the GI tract and red blood cells, which provide energy to other cells).
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renal cell carcinoma commonly invades the ivc via the:
The characteristic of renal cell carcinoma (RCC) is a predisposition to infiltrate the inferior vena cava (IVC) through the renal vein. According to estimates, such tumor thrombus extension occurs in 4–10% of instances.
The majority of treatment is still surgical excision because it has not been demonstrated that the existence of tumor thrombus affects survival. The lining of the proximal convoluted tubule, a portion of the tiny tubes in the kidney that carry primary urine, is where renal cell carcinoma (RCC), a kind of kidney cancer, develops. Renal cell carcinoma is the term for this.
The veins that drain the kidney are called renal veins. They join the vena cava inferior with the kidney. Some individuals instead have the left renal vein travel behind the abdominal aorta.
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which are functions of the cardiorespiratory system? (choose every correct answer.)
Bring oxygen, nutrients and other good things to every cell in your body are functions of the cardiorespiratory system.
Every cell in your body receives oxygen, nutrients, and other beneficial substances through the cardiovascular system, which is composed of your heart and blood arteries. Additionally, they remove trash and carbon dioxide. The cardiovascular system's primary role is to give nutrition and remove waste.
Your heart and blood arteries make up your cardiovascular system, which is an important component of your body. Your body's cells receive a constant supply of oxygen and nutrients from your blood when your circulatory system is functioning properly. Carbon dioxide and other waste are also expelled by blood vessels. Your heart and blood vessels can be kept healthy with your help. Keeping your blood pressure under control with exercise, balanced eating.
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Classify each event in the history of life into the appropriate eon or era.
a. dinosaurs evolve and radiate
b. humans appear
c. oldest fossils of cells (prokaryotes) appear
d. origin of mammals
e. oldest fossils of eukaryotic cells appear
f. major radiation of pollinating insects
g. origin of Earth
h. first invertebrates appear
i. first tetrapods and insects appear
j. the Cambrian explosion
1. Hadean eon
2. Archaean eon
3. Proterozoic eon
4. Paleozoic era
5. Mesozoic era
6. Cenozoic era
Periods, epochs, and ages are further broken into eons, which are themselves divided into eras. They are the Hadean, Archean, Proterozoic, and Phanerozoic eons, among others.
The Precambrian supereon is the combined name for the Hadean, Archean, and Proterozoic eons.
Solar system creation in the Hadean eon; First microbes & poisonous atmosphere in the Archean eonFirst eukaryotes and the development of oxygen in the Proterozoic eraThe current epoch in earth's history during the Phanerozoic eraLargest mass extinction in earth history occurred during the Paleozoic era.Dinosaur period during the Mesozoic era.Cenozoic period sometimes known as the "Age of Mammals".Learn more about Eon
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Which statement is part of the cell theory?
O The flow of energy occurs within cells.
O
Every cell in an organism is identical.
O New cells arise from chemicals in the environment.
O Multiple cells are required to form life.
Statement B. Every cell in an organism is identical. is part of the cell theory.
Cell theory is a scientific concept first formulated in the mid-nineteenth century, that residing organism is made of cells, that they're the simple structural/organizational unit of all organisms, and that each cell comes from pre-present cells.
The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all lifestyles come from preexisting existence. The cell theory is so installed nowadays that it bureaucracy one of the unifying ideas of biology. The mobile concept is important because it explains the idea of the cell and includes the subsequent postulates: The cellular is the fundamental unit of existence. All cells arise from pre-existing cells i.e Omnis cellula e cellula. All residing organisms on the earth are made from cells.
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Which statement would the information presented in this population pyramid best justify?
A.
Nigeria will need outside immigration to keep its population stable.
B.
Women in Nigeria are having more children today than they used to in the past.
C.
Nigeria has a faster rate of growth than any of its neighbors.
D.
There will be over one billion people in Nigeria by 2015.
Information presented in this population pyramid best justify that Nigeria has a faster rate of growth than any of its neighbors.
The population pyramid represents the breakdown of the population by gender and age at a given point in time. It consists of two histograms, one for each gender where the numbers are shown horizontally and the ages vertically.
There are generally three types of population pyramids created from age-sex distributions expansive, constrictive and stationary. A Population Pyramid is a graph that shows the age-sex distribution of a given population. It a graphic profile of the population's residents.
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Answer:
c
Explanation:
The bearded dragon is an example of an influence on genetic outcome regardless of the presence or
absence of a particular chromosome. What other variable plays a role in the sex determination of bearded
dragon?
Answer:
temperature
Explanation:
bearded dragons, as well as most other reptiles, rely on environmental temperature as well as both sex chromosomes. male bearded dragons carry the ZZ chromosomes while females carry ZW, but high temperatures during the embryo process can override the ZZ chromosomes in a male bearded dragon and will produce a female instead.
When blood glucose levels rise, your pancreas releases a hormone called ________ into your blood to help transport glucose to cells.
Answer:insulin
Explanation:
When blood glucose levels rise, your pancreas releases a hormone called insulin into your blood to help transport glucose to cells.
What is insulin?
Insulin is a hormone produced by the beta cells in the pancreas. It plays a crucial role in the regulation of blood sugar levels by facilitating the movement of glucose from the bloodstream into cells, where it can be used as a source of energy.
When blood sugar levels are high, the pancreas releases insulin, which binds to receptors on cells and signals them to take up glucose from the bloodstream. This helps to lower blood sugar levels and keep them within a healthy range.
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What is a good informative speech topic??
Answer:How does sugar influence human body? Why is child obesity such a common issue today? Should food culture be a part of the educational process in high school or college? What are antibiotics and how does humanity get used to it?
Explanation:
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How does the production efficiency you calculated for the owl relate to trophies efficiency?
Production efficiency is defined as the percentage of energy assimilated by an organism that is converted into biomass.
Production efficiency = [tex]\frac{production}{assimillation}[/tex]
Production efficiency excludes losses within feces, trophic efficiency, by contrast, takes into account energy losses as found in feces.
The trophic efficiency is the efficiency at which mass or energy is transferred from one trophic level to the next through predation. The individual efficiency is the efficiency with which a typical individual turns its consumption into somatic growth.
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: after the cambrian explosion, the extensive microbial mats that characterized the ediacaran seas were much less common. do you think this ediacaran-style soft-bodied mold preservation would be common in the cambrian? explain why or why not.
On Ediacaran bedding planes all across the world, microbial mats are frequently discovered alongside macro- and trace fossils. As wrinkled surface textures on bedding planes or, less frequently, as preserved collections of small pyritized filaments covering macrofossil surfaces, mats can be identified. Due to its cracked and wrinkled look, the "elephant skin" texture of MISS is arguably the most identifiable kind. Thin sections cut through bedding planes can also be used to identify microbial mats. They can be recognized by the distinctive orientation of the sediment grains or, on rare occasions, by the presence of microfossils of the original bacteria. Jim Gerling postulated in 1999 that Australia's vast microbial mats may have been crucial to the preservation of Ediacaran macrofossils.
What about Cambrian explosion?The Cambrian Period is a crucial juncture in the evolution of life on Earth since it is when the majority of the major animal groupings first appear in the fossil record. Because of the comparatively short time span over which this diversity of species develops, this event is frequently referred to as the "Cambrian Explosion." Some believe that a sharp increase in oxygen caused the transition, while others assert that it resulted from the evolution of a significant breakthrough, like vision. More than 500 million years have passed since the Cambrian explosion. It was a period of rapid proliferation of many types of life on Earth, when the majority of the major animal groupings first began to show up in the fossil record. The unprecedented appearance of life during the start of the Cambrian Period, between 541 and about 530 million years ago, is known as the Cambrian explosion. Between 20 and 35 of the major phyla that make up contemporary animal life first appeared during the event, which was marked by their emergence.Learn more about Cambrian explosion here:
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Blood contains a group of cells with similar structure and function. Can blood be called a tissue?
Blood is both a tissue and a fluid. It is a tissue because it is a collection of similarly specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood fluid.
Explanation:A blood cell, also called a hematopoietic cell, hemocyte, or hematocyte is a cell produced through hematopoiesis and found mainly in the blood. Major types of blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Blood is a fluid connective tissue. It is different from other connective tissues as its matrix is fluid and has no fibres. The fluid matrix of blood is known as plasma. Other connective tissues have elastic and collagenous fibres, unlike blood which has none.
List differences of a human digestive system and a frogs digestive system
The following are the differences of human and frog digestive systems:
1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.
2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.
3. Humans possess only a set of teeth while frogs possess two sets of teeth.
4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.
5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.
6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.
What are types of exercise that best develop metabolic efficiency?
Long-duration, moderate-intensity, high-intensity, brief duration are types of exercise that best develop metabolism efficiency.
The body converts food and liquids into energy through a process called metabolism. The calories from food and beverages combine with oxygen during this process to create the energy the body requires.
Even when in rest, a body need energy to function. This includes maintaining an even hormone balance, breathing, pumping blood throughout the body, and cell growth and repair. Basal metabolic rate, often known as basal metabolism, is the measure of how many calories a body burns while at rest.
Basal metabolic rate is mostly influenced by muscle mass. Body size and composition also affect basal metabolic rate. Even when at rest, people with more muscle mass or who are larger burn more calories.
Age. People typically lose muscle as they age.
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which bone markings enclose the spinal cord
The spinal cord's core canal, which contains cerebrospinal fluid, is enclosed by the backbone. The central nervous system is made up of the spinal cord and the brain. The spinal cord is enclosed by bone marks.
The spinal cord of a human starts at the occipital bone, travels through the foramen magnum, cerebrospinal fluid then enters the spinal canal at the first cervical vertebra. The spinal cord exits the skull through a hollow casing and enters the vertebral column. Neck, chest, pelvic, and abdomen are some of the vertebral column's distinct locations from which spinal nerves emerge. Cerebrospinal fluid A cross-section of the spinal cord reveals white matter surrounding grey matter with a butterfly-like structure.
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Every fossil tells a story. A paleontologist is a scientist who studies fossils to learn what life was like on planet Earth long ago. Fossilized footprints help us understand an animal’s anatomy, size, weight and even behavior. We can see if it traveled in groups or tended to live alone. Fossilized teeth can give us hints about an animal’s diet. We can even learn about the landscape where a plant or animal lived. If there are fish fossils in what is now a desert, we might hypothesize that the landscape was once a body of water. Learning more about those fish fossils—like their age and what kind of water they lived in—will help us learn even more. Paleontologist are most like detectives who use fossils as A clues. B theories. C suspects. D witnesses.
Answer:
the answer would be A) clues
Explanation:
theories would be what they draw from the fossils.
suspects doesn't apply as much as clues
and the bones didn't witness a thing.
the protein glucagon contains 29 amino acids in its active linear form. what is the minimum number of bases present in the mature messenger rna for this protein?
the protein glucagon contains 29 amino acids in its active linear form. the minimum number of bases present in the mature messenger rna for this protein is 87 .
RRNAs, tRNAs, and snRNAs are ready for use in the cell after transcription and processing; they can be put together into ribosomes or snRNPs and employed in splicing and protein synthesis. The mature mRNA, however, is not yet useful to the cell. The encoded protein must be produced after translation. The genetic code contains the principles for converting from the "language" of nucleic acids to that of proteins. According to experiments examining the consequences of frameshift mutations, the deletion or addition of 1 or 2 nucleotides resulted in a loss of function, whereas the deletion or addition of 3 nucleotides permitted the retention of a significant amount of function. It was shown that the coding unit consists of three nucleotides.
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on earth's surface it is approximately 10,000km from the equator to the north pole. How many kilometers is it between two parallels one degree apart
The distance in miles between two parallels which are 1 degree apart is 2.78km.
What is Equator?This is referred to as an imaginary line around the middle of a planet or other celestial body and divides it into two equal parts.
In this scenario we were told that the distance which is given is approximately 10,000km from the equator to the north pole.
We can also infer that there is 360 degrees in between extreme poles.
We were given distance from the equator which is 1000km
360 degrees =1000km.
The distance between 1 degree will be = 1000km /360
= 2.78km.
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Selective medium differs from differential medium because?
a. selective medium permits growth of a particular microbial type while differential medium is used to distinguish between types of organisms.
b. differential medium differentiates pathogens from nonpathogens while selective medium grows only pathogens.
c. differential medium contains growth inhibitors while selective medium does not.
d. selective medium permits growth of more organisms than differential medium.
Selective medium permits the growth of a particular microbial type while the differential medium is used to distinguish between types of organisms.
Any organic, living system that performs as a separate entity is referred to as an organisms in biology (from the Ancient Greek v (órganon) "instrument, implement, tool" and - (-ismos)). Cells make up every living thing (cell theory). Taxonomy divides living things into categories like multicellular animals, plants, and fungi, or unicellular microbes like protists, bacteria, and archaea. All kinds of creatures are capable of responding to stimuli in some capacity and reproducing, growing, and developing. Multicellular organisms that distinguish specialized tissues and organs throughout development include squids, tetrapods, vascular plants, beetles, and mushrooms.Prokaryotes and eukaryotes are both types of unicellular organisms. The two distinct domains of bacteria and archaea are prokaryotes.
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I need help with this question:
The input in the system is the brain.
Option C is the correct option.
What is the brain?The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body.
From the diagram, we can conclude that the brain is the input in the system because it is the brain which gives the signals to the glands in the skin in order to perform any activity.
The brain is known to have three main parts:
the cerebrum, cerebellum and brainstemThe Cerebrum is the largest part of the brain and is composed of right and left hemispheres.
The brain serves many functions to the human body as it controls our ability to balance, walk, talk, and eat. It coordinates and regulates our breathing, blood circulation, and heart rate.
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Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened. The
While the sympathetic nervous system prepares the body to respond to stressful situations, the parasympathetic nervous system takes it back to its normal relaxed state once the stressful factor is over. 1) sympathetic nervous system 2) parasympathetic nervous system.
How does the body respond to stressful situations?When facing stressful situations, like a dog attack, the body responds through the sympathetic nervous system (SNS) which prepares the organism to escape from that situation.
Let us remember that the sympathetic nervous system and the parasympathetic nervous system compose the autonomous nervous system and have opposite effects on the organism.
During stressful moment, the sympathetic nervous system, SNS, produce an increase in heart-biting frequency and strength, blood pressure, overstimulate respiration, and dilatates respiratory tracts. The organism is alert and ready to escape.
When the affecting factor disappears, the parasympathetic nervous system is activated and the body recovers its balanced and relaxed state by reducing blood pressure and respiratory and cardiac frequency.
Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened. The 1) sympathetic nervous system starts to respond by increasing her heart rate and dilating her pupils. After running for a few minutes, Alma realizes that the dog has fallen far behind. At this point, her 2) parasympathetic nervous system starts working to relax her body by slowing down her heart rate and constricting her pupils.
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Complete question:
Fill in the blanks
Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened.
The (1)________ starts to respond by increasing her heart rate and dilating her pupils.
After running for a few minutes, Alma realizes that the dog has fallen far behind.
At this point, her (2)______ starts working to relax her body by slowing down her heart rate and constricting her pupils.
Method(s) cells use to take in water molecules
what did the avery griffith and hershey-chase experiments determine
Hershey and Chase came to the conclusion that DNA, not protein, contained genetic information. The Hershey-Chase investigations were more widely and swiftly accepted among scientists than Avery's studies on bacterial changes.
DNA- Deoxyribonucleic acid, also referred to as DNA, is a sophisticated molecule that houses all of the data required to create and maintain a organism. DNA is a component of every living thing's cells. In fact, almost all of the cells in a multicellular creature have all of the DNA necessary for that organism.
Today, DNA has three separate purposes: genetic, immunological, and structural, all of which differ greatly from one another and depend in different ways on the bases and the sugar phosphate backbone.
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Suppose you seal a house plant in a transparent glass container. What about the scenario would lead to the plant’s death?.
how might it hurt ecosystem stabiility
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Question
The Moorish idol fish lives in coral reefs around the world. Its oceanic environment is saltier than the environment inside its cells.
1. Which process contributes to the Moorish idol fish losing water to its surroundings
A. ion channels
B. facilitated diffusion
C. active transport
D. osmosis
2. The concentration of water is greater outside the cell than inside the cell.
What will happen according to the process of osmosis?
A. Water will move out of the cell, causing it to shrivel.
B. Water will surround the cell, keeping it moist.
C. Water will be repelled away from the cell, keeping it dry.
D. Water will move into the cell, causing it to swell.
3. Amoebas are single celled organisms that take in particles, and sometimes smaller organisms, as food by enclosing the food particle in its membrane. The amoeba requires energy for this process.
Which structure in an amoeba produces the energy it needs?
A. nucleolus
B. vacuole
C. mitochondria
D. vesicle
4.
Read the paragraph.
Despite its name, the Pacific sea horse is actually a type of fish. Its horse-shaped head gives it its name. This creature lives in the Pacific waters off the west coast of the Americas, from Peru to Southern California. Like many other ocean fish, sea horses face the constant challenge of losing water to their saltier environment. When a sea horse sees a predator, its nervous system kicks into high gear.
Which structure is responsible for transmitting signals from one nerve cell to the next
A. Golgi body
B. nucleus
C. cell membrane (Pretty sure it's C but just want to confirm)
D. ribosome
Answer:
1. I'm pretty sure the answer is D osmosis.
2. The answer is A ( the cell will shrivel).
3. The answer is C.
4. The answer is C the cell membrane.
Explanation:
1. Osmosis, the process where water moves from less salty to saltier compartments, makes it so that freshwater fish never drink water! Instead, they absorb water through their gills because their bodies are saltier than the water around them
2. A hypertonic solution is type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell. Water crosses the cell membrane , but more water leaves the cell than enters it. Therefore, the cell will shrink due to exosmosis.
3. The mitochondria is THE POWERHOUSE OF THE CELL.
4. Well the cell membrane contains the axons of a cell ( or at least in animal cells), so I would have to say the answer is C.
a recent study of hellbender genomics published in 2019 shows that all genes found in the genome of male hellbenders are also present in female hellbenders. however, some genes found in females are absent in the genome of males. what does this result suggest about the sex determination system of hellbenders (2 points)?
Hellbenders ( Cryptobranchus alleganiensis Daudin) are unique aquatic salamanders of the eastern United States that have experienced considerable population decrease because of habitat change and degeneration.
Sexual dimorphism is common in vertebrates that show male-male combat. The Eastern Hellbender manifest such combat and sexual dimorphism. Although hellbenders show sexual dimorphism in several morphological characters, the only dependable external morphological character is the appearance of swelling around the cloaca of males throughout the autumn breeding season.
Systems of genetic sex determination and the homology of sex chromosomes in different taxa differ greatly across vertebrates.
Much advancement remains to be made in understanding systems of genetic sex determination in non-model organisms, especially those with homomorphic sex chromosomes and/or large genomes.
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