In order to better understand similarities and differences among biological organisms, scientists developed a system of classification. initially, the system only consisted of two kingdoms - animalia and vegetabilia. now, there are six kingdoms - eubacteria, archaebacteria, protista, fungi, plantae, and animalia. this demonstrates that

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Answer 1
This illustrates that the science of taxonomy is continually evolving and improving as more knowledge is derived and scientists understand evolution better. The discovery of more and more fossil evidence showing the branching of major taxonomic units has improved this knowledge. Further modern technology, such as genetic and molecular techniques, have allowed scientists to study the relatedness of existing species.
Answer 2

sytems of classification are adaptable


Related Questions

Paenibacillus wynnii uses the oxygen produced by cyanobacteria for which cellular process?

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The answer is respiration. Paenibacillus wynnii is a facultative bacteria found in soil and other environments. Being facultative, it can survive in both oxygenated or anoxic environments. Therefore, if put together with Cyanobacteria that produces oxygen, Paenibacillus wynnii will use the oxygen in respiration.


The oxygen produced by cyanobacteria is used by Paenibacillus wynnii in respiration. The Latin name paene means almost, which reflects its name “almost bacilli”.  This endospore-forming bacteria, specifically genus P. larvae is known to cause American foulbrood in honeybees but they are essential in agriculture and horticulture.

In addition, these bacteria can catalyze a wide variety of synthetic reactions ranging from cosmetics to biofuel production for they produce extracellular enzymes like polysaccharide-degrading enzymes and proteases.

A nurse is counseling a pregnant client who maintains a vegetarian diet. what should the nurse plan to do to ensure optimal nutrition during the pregnancy?

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refer the client to a dietitian to help plan her daily menu. 

Adh controls how diluted or concentrated urine is by controlling the permeability of the:

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ADH controls how diluted or concentrated urine is by controlling the permeability of the collecting ducts to reabsorption of water. The antiduretic hormone(ADH) is secreted by the hypothalamus and pitutary glands. When there is less water in the blood, secretion of ADH increases and hence increasing reabsorption of water. This also applies vice versa. 

Which intervention is most appropriate for the treatment of a patient in asystole?

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I believe the answer is epinephrine. Asystole is condition where there is absence of ventricular contractions. It is treated by cardiopulmonary resuscitation (CPR) combined with epinephrine. Epinephrine is an adrenaline that plays an important role by increasing blood flow to muscles and output of blood in the heart.

You are given two true-breeding groups of rabbits. the first group has floppy ears and white coat color. the second group has straight ears and black coat color. when you perform a cross of these two groups to obtain a f1 generation you see that all of your rabbits have floppy ears and grey coat color. if you knew that each of these traits was determined by a single gene and underwent independent assortment, then you expect to see that 75 percent of your f2 generation rabbits have _____ ears and _____ of your rabbits have black fu

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Floppy ears are dominant over straight ears and coat colors is determined by incomplete dominance

In the F2 generation, 75 percent of rabbits are expected to have floppy ears, and 25 percent are expected to have black fur.

When crossing two true-breeding groups of rabbits, one with floppy ears and white coat and the other with straight ears and black coat, to obtain an F1 generation that all have floppy ears and grey coat, we can infer certain genetic principles.

Given that both traits are determined by a single gene and undergo independent assortment, according to Mendelian genetics, in the F2 generation we expect to see a 3:1 phenotypic ratio for each trait.

For ear type, since all F1 rabbits have floppy ears, we would conclude that floppy ears are dominant. Hence, 75 percent of the F2 generation rabbits are expected to have floppy ears. For coat color, grey in the F1 suggests incomplete dominance between white and black alleles. However, the question specifically asks for the percentage of F2 rabbits with black fur, which would be the result of homozygous black allele mating. Therefore, expectedly, 25 percent of F2 rabbits would exhibit a black coat color due to the recessive nature of black fur in the context provided.

True or false: only a very small percentage of health care providers hold biased attitudes toward individuals who are obese.

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False. If you search in Google Scholar or some other database using these keywords, you will see countless empirical, peer-reviewed research studies showing how healthcare providers are significantly influenced by their implicit biases regarding obese patients, leading to healthcare disparities.

Implicit bias refers to our unconscious decisions and perceptions of people, and if you want to learn more about it, I highly suggest you visit Harvard's Project Implicit online.

While implicit bias is pervasive, there still are some healthcare workers who are more explicitly biased towards their obese patients. This is also a serious problem.

According to freud, two instincts furnish the energy for personality functioning. these instincts are

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The answer is sex and aggression. Freud's view on sex and aggression that these are the strong innate forces in psychologic system. He called these as instinct. Freud postulated that human have a fundamental instinct towards destruction and this instinct is manifested through aggression. This is referred sometimes as the life instinct or libido and thanatos for death instinct. He also used the term libido to the need to satisfy, sustain life and pleasure related urge. He also note that this can occur in combination in various ways and situations.

Intramembranous ossification begins when aggregated mesenchymal cells differentiate into osteoblasts, which then produce osteoid. this process takes place in the dense irregular connective tissue of the __________

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that would be the dermis :)

how do the income effect, the substitution effect, and diminishing marginal utility help explain the law of demand?

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The utility approach helps explain the law of demand. In fact, the demand curve for a normal good is downward sloping due to the law of diminishing marginal utility.

The health of bones depends upon a good supply of calcium. if a person consumes 0.06 g of calcium, how many moles of calcium did he consume?

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Relative molecular mass of calcium is 40

moles = mass / relative molecular mass of calcium
           =0.06g / 40
           =0.0015 moles

Calcium is the chemical element of atomic number 20, with a Ca.sup. Symbol of molar mass of 40 g / mol.

It is a hard gray-white, alkaline-earth metal that is never found in pure bodies in nature. It is the fifth most abundant element of the earth's crust (more than 3%) and is essential for organic matter: formation of bones, teeth and shells. Calcium also plays a very important role in cell physiology.

To calculate the number of moles of calcium, you have to apply the law of:

Number of moles = mass / molar mass.

n = m / M = 0.06 / 40 = 1.5 × 10 -3 mol = 1.5 mmol.

The number of moles of calcium is 1.5 milli-moles.


Why aren't organisms on the seafloor crushed by water pressure?

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The organisms on the seafloor have do not have air inside their bodies. Unlike the hollow viscera of animals in the surface, the viscera of seafloor organisms are filled with fluid. Therefore, the internal and external pressure is equal and these organisms are not crushed.

Answer: The deep-sea organisms found today have undergone evolution in the past and are very complex now because their body structure also varies from that of the organisms that are present at a lower depth.

The bodies of these organism does not contain any air cavities in which the pressure could exert. It is because of this, the organism are quite solid without any air in their bodies, thereby they can withstand extreme high pressure.

The nurse is preparing to assist with the removal of a chest tube. which dressing is appropriate at the site from which the chest tube is removed?

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There are choices for this question namely:

a) "Exhale forcefully while the chest tube is being removed."
b) "While the chest tube is being removed, raise your arms above your head."
c) "During the removal of the chest tube, do not move because it will make the removal more painful."
d) "When the tube is being removed, take a deep breath, exhale, and bear down."

The correct answer is "when the tube is being removed, take a deep breath, exhale, and bear down". This is called a Valsalva maneuver and this functions to prevent the air from leaking back to the pleural space and eventually prevent pneumothorax. After which, a clean, air tight, dressing shall be applied to the wound.

Some insects have evolved the ability to pollinate only specific types of flowers. The process of two species evolving together because of interdependence is called
A) coevolution.
B) Larmackian theory.
C) divergent evolution.
D) convergent evolution.

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its A:coevolution trust me it is
The answer is A) Coevolution. Hope this helped!

The laminae and pedicles together form the ______.

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it would be a vertebral foramen, you can always look up more info in google!

What happens to the warm air when it overtakes the cold air?

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Rises and cold air however much is left of it, goes to the ground

________ are large lymphatic nodules that are located in the walls of the pharynx.

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tonsils are large lymphatic nodules h are located in the walls of the pharynx

which statement best describes a human influence on the biogeochemical cycles?

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''Perhaps the most significant factor that affects the biogeochemical cycles in the terms of human involvement is global warming, which disrupts natural cycles on various levels.''
A. Increased eutrophication caused by high levels of nitrogen and phosphorous

Your grandfather has been advised by a neighbor to select his foods using the dietary guidelines for americans on choose my plate website to help cure his high blood pressure. what advise would you give him

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cut down on foods high in salt(sodium)

Answer:

First of all, he should eat only up to 1500 mg of sodium per day.

Secondly, he should have 6 to 8 servings of grains per day. Ideally, he should only consume whole grains as these do not spike insulin levels as refined grains do.

Third, he should consume 4 or 5 vegetables or fruits per day, in order to get all the essential vitamins and minerals.

He should also avoid fried foods, and only consumme lean meat, poultry and fish.

Conscious perception of vision probably reflects activity in the ________.
a.thalamus
b.superior colliculus
c.chiasma
d.occipital lobe of the cortex

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d.occipital lobe of the cortex

cerebral cortex (cerebrum) is the most conscious part of the human brain, contains: frontal, parietal, temporal and occipital lobes
Final answer:

The conscious perception of vision probably reflects activity in the occipital lobe of the cortex, which is the primary area of the brain responsible for visual interpretation.

Explanation:

The conscious perception of vision likely reflects activity in the occipital lobe of the cortex. The occipital lobe in our brain is primarily responsible for interpreting visual information sent from our eyes. The process starts when light enters our eyes and hits the retina. The information is then transferred by the optic nerve through the thalamus to the occipital lobe, where it is consciously perceived as vision.

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Can you explain why the presence of three types of pigments (chlorophyll a, chlorophyll b, and carotenoids) increase the functioning of photoautotrophs?

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Photoautotrophs are organisms, typically a plant, that obtains energy from the sun to be able to convert inorganic materials to organic materials for cellular functions to take place such as biosynthesis and respiration. Its function is increased by the presence of the three types of pigments namely chlorophyll A and B and carotenoids because these are "enablers" of photosynthesis.

The chlorophyll serves as the stepping stone for the sunlight "energy-capture" . This pigment contains porphyrin ring through which electrons can freely to move. Since they move freely, the ring has the ability to gain or lose electrons easily thus they also have the ability to provide energized electrons to other molecules.

However, the carotenoids are accessory pigments only because they cannot directly transfer the energy from the sun to the photosynthetic pathway which means that the absorbed energy must be passed on to chlorophyll first.

The part of the brain that is responsible for thought, reasoning, memory, judgment, speech, and voluntary body movement is the ____.
a. cerebrum
b. cerebellum
c. medulla oblongata
d. midbrain

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The answer is the cerebrum!! Plz mark brainliest

The cerebrum is the largest part of the brain and is composed of right and left hemispheres. It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement. The cerebellum is located under the cerebrum.

A school nurse is assessing children in the third grade for pediculosis capitis. what assessments should be made?

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Pediculosis capitis, also known as hair lice, is one of the most common of ectoparasitic infections. This is highly contagious, especially in schools, day care centers, or areas wherein children are in close contact with infected children. In this case, the nurse should examine the heads of the children for small lice or nits on the hair shafts.

Which of the following would be a likely characteristic of an ecosystem that has remained relatively unchanged for hundreds to thousands of years?

periodic logging

well-developed soils

old growth trees

mostly pioneer organisms

relatively stable climate

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Relatively stable climate

Old Growth Trees

Well developed soils

The likely characteristics of an ecosystem that has remain unchanged are :

Well developed soils ( B )Old Growth Trees ( C ) Relatively stable climate ( E )

Ecosystem

An ecosystem is interactive geographical area consisting of both biotic such as plants and animals  and abiotic factors such as water and weather conditions interacting together to maintain life in the area.

An ecosystem that has remained unchanged for hundreds of years will most likely possess well developed soils, old trees and a stable climatic condition.

Hence we can conclude that The likely characteristics of an ecosystem that has remain unchanged are :Well developed soils , Old Growth Trees and Relatively stable climate.

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Suppose george washington completely removed the bark from around the base of a cherry tree but was stopped by his father before cutting the tree down. the leaves retained their normal appearance for several weeks, but the tree eventually died. the tissue(s) that george left functional was (were) the

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Hi! 

What George Washington did was called "Girdling"

It consists of removing bark, cambium, and phloem from a tree, and leaving only the xylem and heartwood functional

What it does to the tree is to remove the tissue that is responsible for carrying the sugar from the leaves to the roots. This causes the roots to die, and with them, the tree dies too. This process is very slow and is used by horticulturists to kill trees while giving the environment time to adjust.

College freshman are participating in a study abroad program. when teaching them about hepatitis b, the nurse should instruct the students on the need for:

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hepatitis b is a liver infection spread by sexual contact, sharing injecting equipment, close contact with someone who has hepatitis b or any contact with contaminated body fluids. you can prevent it with vaccines. Im assuming the nurse instructs the students to get vaccines?

Jesse has a class project. She wants to show how CO2 from the atmosphere gets converted to carbonates. What kind of process would help her depict this? photosynthesis chemical processes litterfall natural processes

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The correct answer is A.

Photosynthesis.

 Photosynthesis is referred to as the process where plants use energy from the sun, carbon dioxide, and water to make food. Photosynthesis is largely responsible for maintaining and producing oxygen content of the atmosphere of the earth and then supplies all organic compounds and energy which is necessary for life.

 The first photosynthetic organisms which probably evolved in the history of evolution is used as reducing agents, for example, hydrogen sulfide and hydrogen.

Answer:

Option D, Natural Process

Explanation:

The following happens in all the below given processes -  

a) Photosynthesis – In photosynthesis, CO2 taken by plant react with water in presence of sunlight  to produce glucose and oxygen. No carbonate is formed in this process.

b) Chemical process – Chemical process are not necessarily natural process and since Jesse wants to know process of conversion of CO2 to carbonate in atmosphere, therefore this should be a natural process.  

c) Litterfall – it is related to falling of dead leaves from plant and has no relevance with carbonate formation.

d) Natural process – Natural processes helps the formation of carbonate from CO2 present in atmosphere

A series of chemical reactions are involved  

Step 1 – Carbon in atmosphere is dissolved by rain/water to form carbonic acid  

CO2 + H2O -> H2CO3 (carbonic acid)

Step 2 – Carbonic acid causes weathering of rock thereby producing bi carbonate ions

H2CO3 + H2O + silicate minerals -> HCO3- + Mineral cations + clays

Step 3  Carbonate is precipitated from bicarbonate ions

Mineral  + 2HCO3- -> MineralCO3 + CO2 + H2O

Thus, Option D is correct.

what is a gene?
A) a section of a protein that codes for DNA
B) the alternate version of a trait
C) the visible trait in the F1 generation
D) a section of DNA that codes for a specific trait

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A gene is a section of DNA that encodes instructions for creating a specific protein or RNA molecule, effectively determining a particular trait in an organism.

A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is considered the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. In simpler terms, genes carry instructions for making all the proteins that are required for an organism's growth, development, and biological functions, thus determining specific traits.

A gene is a discrete sequence of DNA nucleotides. Often, one gene is responsible for making one protein, but this is not always the case. The expression of genes can be influenced by environmental factors, and some proteins may be the result of multiple genes working together.

An example of how a gene works is seen in pea plants, where a specific gene might code for flower color. Therefore, to answer the student's original question, the correct option is:

D) a section of DNA that codes for a specific trait

In which zone can rooted plants be expected to be found attached to the seafloor? What is the name of this zone and why are plants found there?

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Rooted plants (seaweed) would be found close to the shore in the intertidal zone, called the littoral zone. Seaweed is found here as the water here is shallow, and seaweed requires sunlight for photosynthesis, so the water cannot be too deep for the sunlight to penetrate. Seaweed is not a plant as such but rather may belong to one of several groups of multicellular algae.

Answer: Plants that are attached to the ocean surface live in the benthic zone. These plants are also found in the epipelagic zone which maxes at 200m. Plants and life need warmth, oxygen, and sunlight. At these depths, all of these are available to ocean life.

Which best describes the first organisms on earth apex?

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Evolutionary biologists theorize that the first living organisms on earth are single-celled prokaryotes. The two prokaryotic domains are archaea and bacteria. Bacteria varies from disease-causing pathogens to valuable photo synthesizers and symbionts while archaea are diverse, but not pathogenic and they have the characteristics to live in extreme environments. Moreover, the presence of prokaryotes is highly dominating for they can be found everywhere even inside our bodies but they are difficult to count, classify or detect.

 

Prokaryotes, which are straight, single-celled microorganisms, were the first life forms on Earth.

These species first appeared during the Archean Eon, which lasted approximately 3.5 to 4 billion years. Prokaryotes differed from later-evolving, more complex eukaryotic organisms in that they lacked a defined nucleus and membrane-bound organelles. Bacteria and Archaea were the two primary categories of early prokaryotes.

These organisms were perfectly adapted to Earth's harsh early conditions, which included high temperatures, lack of oxygen, and much volcanic activity. They were essential in molding the planet's ecosystems and creating the conditions for modern existence. As these primitive organisms evolved over time, more complex life forms emerged.

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Which statements about mutations are true? Check all that apply.

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Mutations in your genes are happening almost every time your cells divide, they're just so minor that they basically dont matter, but every once in a while a serious one will occur, which, can cause permanent damage or death.

Answer:

i think its 2, 4,5

Explanation:

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