discuss how anatomy and embryology are used to support the theory of evolution

Answers

Answer 1
Structural features with a common evolutionary origin are called homologous structures.They can be similar in arrangement or function, showing that species evolved but some kept similar characteristics to those of its ancestors.

Hope this helps!

-Payshence xoxo

Related Questions

A health care provider has prescribed triamterene to a male client with renal disease. the client informs the nurse that he is taking potassium supplements to address some heart problems. the nurse would be alert for:

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If the patient is taking potassium supplements for his heart problem and the doctor has prescribed triamterene, the nurse should be alert for the increased risk of hyperkalemia or high potassium level in the blood.

Some signs of hyperkalemia includes nausea, slow or unusual heart rate, weakness, or loss of movement and in severe cases, it could result to kidney failure, muscle paralysis, liver disease, irregular heart rhythm, and cardiac arrest.   With this, the doctor or pharmacist must be informed to prevent any undesirable outcome.

 

Where would the origin of endothermy map on the phylogeny?

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The origin of endothermy map on the phylogeny is within Mammalia and within Aves. Phylogeny aims to determine the evolutionary relationships between phyla. Evolutionary relationships of a species or group of species can be used to build taxonomic groups; the evolutionary history of species is depicted by a phylogenetic trees. Avian and mammalian endothermy results from elevated rates of resting, or routine, metabolism and enables these animals to maintain high and stable body temperatures in the face of variable temperatures.

How can I prepare for a quarter final in my online high school biology class?

Answers

You could make note cards on some things you need to know and put the question on one side and the answer on the other and quiz yourself. Good luck on this test though, you got this!
Final answer:

To prepare for a biology quarter final, understand all concepts thoroughly, study as if in a classroom setting, manage time effectively, use active learning techniques, and review results post-quiz.

Explanation:

To prepare for a quarter final in an online high school biology class, it is crucial that you fully understand all of the concepts presented. Treat the preparation as if the quiz were to be proctored in a traditional classroom setting. This mindset will help ensure that you allocate enough time and effort into studying. Here are some strategies to effectively prepare:

Review all lesson materials thoroughly, including lecture notes, textbook chapters, and any supplemental resources provided.Practice with quizzes and tests to gain familiarity with the format and type of questions that may be asked.Create a study schedule to manage your time efficiently and prevent last-minute cramming.Engage in active learning techniques such as flashcards, teaching the material to someone else, or drawing diagrams to reinforce the information.Contact your teacher or classmates for clarification on concepts you find challenging.

During the quiz, keep track of the time to ensure you are able to complete all questions. Afterward, look over your full quiz results after you have submitted it for a grade to identify areas that need improvement or that you have mastered. This will help in future assessments and understanding of the subject material.

Which of the following is an example of haploid cells?
Cardiac Cells

Nerve Cells

Muscle Cells

Gametes

Answers

The right option is; Gametes

Gametes is an example of haploid cells.

Haploid cells are cells that contain a single complete set of chromosomes. Haploid cells in humans and other mammals, are usually the sex cells (egg and sperms) which are also called gametes that are produced during meiosis (a type of cell division). When the egg is fertilized by a sperm, it produces a diploid cell. Gametes contain 23 chromosomes in humans.

The graph above was made by a South American biologist in the country of Brazil, after a long study on parrots. About 200 years ago, 90% of Brazil was covered in mature, deep forest. Today, well over half of this forest has been cut to make way for farms. What conclusion could you draw about the parrots in the graph?

Answers

This question is unfortunately incomplete as the graph is not visible. The options given are:
A) Red parrots have become less common in the last 200 years.

B) There are probably less green parrots today than there once were.

C) Blue parrots probably are the best adapted species to live on farms.

D) The blue parrot population has likely increased in the last 200 years.


The answer is B. This is because the graph shows the highest number of green parrots in the 'deep forest' category of environment, whereas the numbers in the 'grassland' and 'scrub forest' are less. Since the forested area in Brazil has decreased rapidly, this means that the preferred environment of the green parrot has decreased, probably resulting in a decline in the green parrot population


 B)  There are probably less green parrots today than there once were.

There are probably less green parrots today than there once were. With a change in environmental conditions, the parrot populations change.

~USATestprep~

Why are most fertilizers rich in nitrogen and phosphorous?

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Because just the right amount of nitrogen and phosphorus makes the soil grow really good. But too much will kill the soil.

Because the surface gravity on the moon is 16 of that on earth how much does a person who weighs 360 newtons on earth weigh on the moon

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Ill help
With this a for 20 secs

Formula:


Weight on the moon = Weight on Earth/9.81  m/s^2 (1.622  m/s^2)


I believe the answer would be 

59.52 rounded to 60N some person would weigh on the moon.


Let me Know...


In a chemical reaction, activation energy increases the of the reactants. This outcome causes the particles to collide, which results in the of new products.

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In a chemical reaction, activation energy increases the temperature of the reactants. This outcome causes the particles to collide, which results in the formation of new products.

Name two places you would find epithelial tissue.

Answers

Hello,

Here is your answer:

The proper answer to your question is "skin and spinal cord".

Here is how:

Simple epithelial tissue lines body cavities and tracts which is what you can find in your skin and your spinal cord!

Your answer is spinal cord, and skin.

If you need anymore help feel free to ask me!

Hope this helps!

Epithelial tissue is found on your skin, lining your digestive tract, and lining your blood vessels.

Mucus occurs in both the respiratory and digestive tracts. what is its main immunological function? physically trapping of pathogens sweeping away debris destruction of pathogens because it is acidic increasing oxygen absorption

Answers

The answer would be: physically trapping of pathogens

Mucus has a high viscosity that could physically trap the pathogens so it could not attack the body cells. In respiratory it could also sweep all the debris because the respiratory epithelial cell has cilia that constantly moves.
It won't help in oxygen absorption, it could disrupting the oxygen absorption instead as it could physically block the air.

Why do you think pressurized seeds and spores are a beneficial adaptation for these plants and fungi

Answers

The green plant would be able to photosynthesize, but the fungi wouldn’t. The plants would have cellulose in their cell walls, while the fungi would have chitin.

The pressurized seeds and spores have the ability to spread, helping the organism reproduce. In plants, it allows them to reduce competition by flinging the seeds far away so that their offspring don’t compete for resources. For the fungus, it allows the parent to fling the spores into the grass so that when the horse eats them, the life cycle of the fungus continues.

(exact answer provided by the system)

The nurse cares for the client diagnosed with second-degree atrioventricular block, mobitz type ii. while assessing the client, the nurse notes a heart rate of 34, the client reports dizziness, and passes out. the nurse places the client on a cardiac monitor. which is the next nursing action?

Answers

Answer:Prepare for a transcutaneous pacemaker.Explanation:

The purpose of a transcutaneous pacemaker in medical practices is to regulate the heartbeat of a patient so that when they experience any sort of medical emergency there is no problem. Seeing as the condition of the patient is deteriorating, the standard practice is to place them on a cardiac monitor to better assess the situation and form a plan of action. Which is why the transcutaneous pacemaker is important at this stage.

________ were first identified in cancer-causing viruses and can induce ________ in infected cells. ________ were first identified in cancer-causing viruses and can induce ________ in infected cells. segmented genomes; reassortment glycoprotein spikes; syncytia formation t antigens; lysis oncogenes; transformation herpes viruses; lesions

Answers

Oncogenes; transformation

Oncogenes is a gene that has the potential to cause cancer. They are usually caused by mutation resulting into high expression. Normally cells will have programmed cell death when functions of the cells are altered from the normal. Activated oncogenes can make the cell survive and proliferate by preventing programmed cell death. Commonly,  multiple oncogenes with mutated tumor suppresor genes will act in complimentary to cause cancer.

Because they are manmade, fish farms are not considered fisheries. True or False

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Because they are manmade, fish farms are not considered fisheries.
the answer is false

The given statement is false.

Fish farming is a form of aquaculture in which the fishes are raised to be sold for the purpose of food.

It is known to be the fastest growing area of the animal food production. They are man made farms and also considered as fisheries.

These aqua farms are mesh cages that are submerged in water bodies or can be a concrete enclosure on the land.

The _____ girdle is also known as the shoulder girdle

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The pectoral girdle is also known as the shoulder girdle. The shoulder girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consist of the clavicle, scapula, and coracoid. 

The predominant greenhouse gas produced by human use of fossil fuels is __________.carbon dioxidenitrous oxidewater vapormethane

Answers

The answer is carbon dioxide.  A greenhouse gas is a gas in the atmosphere that absorbs and emits radiant energy from the sun, thereby causing a 'greenhouse' effect. These gases are fundamental to life on Earth, as without them, the average temperature on Earth would be around −18 °C rather than  15 °C. However, a problem arises when there is too much greenhouse gas in the atmosphere, and the warming effect becomes too strong, leading to global warming.

What do you think might happen if someone had a mutation that didn't allow his or her body to make carbonic anhydrase?

Answers

Answer:

In absence of carbonic anhydrase enzyme, transport of CO2 gas through blood plasma in form of bicarbonate ion would not occur. The person would also suffer from acidosis.

Explanation:

Carbonic anhydrase catalyzes the reversible reaction of water with CO2 and leads to the formation of carbonic acid which in turn dissociates into hydrogen and bicarbonate ions.

The enzyme present in RBCs maintains the diffusion gradient for the movement of CO2 into and out of the RBCs. Movement of bicarbonate ion out of RBCs is followed by the movement of chloride ions into RBCs.

In capillaries present around the alveoli, CO2 is diffused out of the plasma and enters the alveoli while the reaction sequence is revered at tissues and CO2 enters the RBCs.  

Therefore, if carbonic anhydrase is absent or nonfunctional, the diffusion gradient for CO2 would not be formed. It would prevent the transport of CO2 gas in blood plasma from tissues to the lungs. The protons released in the reaction also serve as a buffer to maintain the pH of extracellular fluid.  

At kidneys, reduced secretion of H+ into the urine and reduced reabsorption of Na+ and HCO3 − into the blood would cause acidosis.  

The absence of this enzyme leads to different types of diseases in the body.

If someone had a mutation that didn't allow the body of an individual to make carbonic anhydrase then the carbondioxide that is produced in the respiration reaction will not converted into carbonic acid and bicarbonates. This conversion is important in order to remove the carbondioxide which is a waste material from the body.

The person experiences various problems due to lack of this enzyme such as excess ammonia in the blood, acid-base balance in the blood and low glucose in the blood so we can say that absence of this enzyme creates big problems in the body.

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While receiving a blood transfusion, a client develops acute dyspnea, generalized urticaria, a heart rate of 128, and a blood pressure of 70/38. what type of reaction does the nurse conclude that the client probably is experiencing?

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The client probably experiencing anaphylaxis reaction. 

Anaphylaxis is a severe allergic reaction with rapid onset and may cause death. In anaphylaxis, systemic vasodilatation that results from the reaction will cause shock.
The symptoms could be decreased blood pressure(hypotension), increased heart rate, dyspnea and loss of consciousness.
The transfusion should be stopped and an epinephrine shot should be given as fast as possible to this client.

15. Use the chart below to determine the amino acid sequence of the following strand of mRNA.

mRNA strand: AUGAAGGGCUGA
Amino Acids:

Answers

should be : UACUUCCCGACU

In order to read the information from a copy of mRNA, we need to read three bases one at a time. This set of three bases is called as a codon and each codon is specific for a particular amino acid. Let's put a gap between the codons, so that we could read them easily and find the respective amino acid.

mRNA strand: AUG AAG GGC UGA

amino acids: Methionine Lysine Glycine STOP codon

So there are three amino acids and one stop codon, which is like a signal for the cell to stop translation.


The term _______________ includes all of human existence prior to the emergence of writing

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The term prehistory includes all of human existence prior to the emergence of writing.

According to the theory of _____, today's organisms evolved from past organisms.


common descent

recombination

continental drift

plate tectonics

Answers

According to the theory of COMMON DESCENT, todays organisms evolved from past organism.  

common descent          is the answer

Which is not a characteristic of life

Composed of cells

Maintains homeostasis

Sensitivity

Uses energy

Answers

Sensitivity is not an essential characteristic of all forms of life. Cells, homeostasis, metabolism (energy), reproduction, responsiveness, evolution are such characteristics.

Answer: Sensitivity.

Explanation:

Sensitivity can be defined as the conditions in which we observe the response of the living organism soon after it is subjected to stimuli.

This character cannot be to define where it is a characteristic of life or not because plants are also living form of life but they do not sensitive to many of the stimuli.

There are many more living forms of life that are not that much sensitive towards the stimuli.

The image shows point and non-point sources of water pollution. Which two soi fed are point sources of water pollution?

Answers

Answer:

Coal Burning

Factory

Explanation:

Factories and sewage treatment plants are two common types of point sources.

The two soi fed that are point sources of water pollution are coal-burning power plants and factories.

What is water pollution?

Water contamination is the tainting of bodies of water, typically as a result of human activity, which has a detrimental impact on their uses. Aquifers, reservoirs, lakes, rivers, seas, and groundwater are all examples of bodies of water.

Whatever name you give it, coal still causes pollution. It actually produces the most pollution when producing power.

Massive volumes of pollution are released during the mining process and subsequent burning of coal in power plants, endangering human health and accelerating climate change.

Therefore, coal-burning power plants and industry are the two main sources of point pollution in water.

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What would you expect your tv to be if you inhaled a foreign object which completely obstructed your right mainstem bronchus?

Answers

If you inhaled a foreign object and completely obstructed your right mainstem bronchus your TV (Tidal Volume) will become half because only your left one will function.

The tidal volume (TV) is the volume of air that circulates between a normal inspiration and expiration without making an additional effort. The normal value is approximately 500 ml or 7 ml/kg of body weight.

Amoeba paramecium and spirogyra are diverse. why then are they all classified as protists

Answers

Even though amoeba, paramecium, and spirogyra are quite different, they are all often classified in the same group, Protista because this group holds various types of eukaryotic organisms that are heterotrophic and unicellular.
This type of classification is not based on evolutionary and genetic similarities, but only on the properties of being unicellular, so there are many vastly different organisms in this group.
Final answer:

Despite their variety, protists including amoeba, paramecium, and spirogyra are classified together due to their same Eukaryotic nature and similar cell structures and reproductive strategies. They all belong to one of the six 'supergroups' under the Eukaryota domain, which showcases a monophyletic behaviour, meaning they evolved from a common ancestor.

Explanation:

Amoeba, paramecium, and spirogyra are classified as protists and are considered diverse due to their unique morphological and biological characteristics. Despite their variety, they fall under the 'protists' category as they possess similar cell structures and reproductive strategies and are eukaryotic microorganisms that are not plants, animals, or fungi. Furthermore, the classification of protists stems from the principle of 'convergent evolution' which indicates that organisms exhibiting similar morphological features may have evolved analogous structures due to similar selective pressures, rather than because of a recent common ancestry.

The entire domain Eukaryota, which includes protists, are grouped into six 'supergroups' that consist of all of the protists along with plants, animals, and fungi. Despite the complexity of protist classification due to their diverse nature, it's understood that all the organisms within each 'supergroup' are most closely related to each other than organisms outside the group. In this context, the supergroups exhibit monophyletic behaviour, meaning they evolved from a single common ancestor, and protozoans like amoeba, paramecium, and spirogyra share this evolutionary history, allowing them to be classified under the protist group.

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Why might one variation have a selective advantage over another variation?

Answers

Variation becomes an advantage if neither of the individuals is having detrimental traits. If neither of the individuals is having the detrimental trait then that means that a bad gene is being introduced in the population. Other times, variation is an advantage since it provides the population with better traits and devices to use on their environment. This is crucial since the environment changes over time.

What type of agent would be most likely to disrupt the structures of microvilli?

Answers

The addition of the Calcium Ion (Ca++) is likely to disrupt the structures of microvilli.

Some cells that have a role in absorption or secretion contain microvilli, protrusions of the membrane, due to which the membrane surface area is increased and therefore it leads to more effective diffusion of different molecules through the membrane. They are also involved in cellular adhesion.

Microvilli consist of actin filaments, that are tightly packed and cross-linked, at its core. Microvilli have a big role in the gastrointestinal tract where they have a function in the absorption of nutrients, and therefore they contain enzymes that break down nutrients into compounds that are easy to absorb.

Certain diseases lead to the destruction of microvilli, like in some types of E. Coli infections, and this destruction is caused by the rearrangement of the host cells cytoskeleton which then leads to diarrhea and the disruption the normal process of absorption.

The filaments that are a part of the microvilli structure contain actin and calmodulin which are proteins that make up the filaments of the microvilli. It has been shown that the addition of the Calcium Ion (Ca++) to the cores of the microvilli causes a drastic disruption of these filaments by participating in the solubilization of a large portion of the actin and calmodulin proteins. Ca++ reacts with these proteins, binds to them, and reduces the tightly packed structure of the microvilli filaments.

In earth's history there has(have) been ____ major extinction event(s) leading to the loss of 50% or more of the species present, not counting the current mass extinction.

Answers

There have been 5 Mass Extinctions throughout Earth's history.

After reviewing the 24-hour urine collection reports of a client with kidney dysfunction, the nurse suspects diabetes mellitus. which finding supports this suspicion?

Answers

The finding could be glucosuria or polyuria

Patient with diabetes mellitus will have reduced amount or sensitivity to insulin. Reduced insulin cause elevated blood glucose level. Blood will continually be filtered by the kidney. While glucose is filtered too, it will be removed by the kidney cells up to a certain point. In diabetes, the glucose level is too high that there is some glucose left in the urine, lead to glucosuria. 
Glucose will attract the water, makes the urine is hard to concentrate and have a higher volume than normal, leading to polyuria.

A species of seaweed and coral are in competition for sunlight and space. Which of the following best describes this relationship?

Harmful, because the coral will eat the seaweed
Harmful, because there will not be enough sunlight and space for both of them
Helpful, because they will share the space and both benefit from the interaction
Helpful, because the coral will benefit and the seaweed will not be affected

Answers

harmful, because there would not be enough resources

Answer:

Harmful, because there will not be enough sunlight and space for both of them. (B)

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