What are the defining characteristics of amphibians?

Answers

Answer 1

Amphibians are vertebrates.Their skin is smooth and slimy.Amphibians breathe through their skin, as well as their lungs in some cases.Amphibians are cold-blooded.They have a complex life cycle (larval and adult stages).Many species of amphibians vocalize.
Answer 2

Amphibians represent a group of vertebrates that require water to survive.

Amphibians

They are one of the major divisions of vertebrates along with fishes, birds, and mammals.

In addition to possessing the basic features of vertebrates, amphibians have the following characteristics:

They are cold-bloodedThey can breathe through their skin as well as using lungsThey need water for survivalReproduction is by laying eggs that are fertilized externallyThey are mostly carnivorous

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Related Questions

Compare the origins of the common carotid arteries of the fetal pig with those of the human.

Answers

The comparison is that in humans, only one carotid arteries branches from the brachiocephalic artery while for the fetal pig, both arteries branches from the brachiocephalic artery.

What is the comparison of the Arteries?

The difference between the origins of the carotid arteries in the human heart and the fetal pig is that In a human, the right carotid arteries branches from the brachiocephalic artery, while the left common carotid artery comes directly out of  the aortic arch.

Meanwhile, In the fetal pig, both carotid arteries branch from the brachiocephalic artery.

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How does water move from the biosphere to the atmosphere in the water cycle

Answers

Answer:

The water cycle depicts the ongoing circulation of water inside the Earth and atmosphere. It is a complicated structure with several functions. Water vapor evaporates from liquid water, compresses to create clouds, and falls back to earth as rain and snow.

Explanation:

The water cycle is a cyclical process in which water circulates between the earth's atmosphere, seas, and surface via precipitation, drainage in lakes and rivers, and return to the earth's atmosphere by absorption and evaporation. Throughout respiration, organisms exhale carbon dioxide and water vapor, which evaporates back into the atmosphere.

Endosymbiosis is considered
a(n)...
A. state.
B. experiment.
C. law.
D. theory.

Answers

Answer:

D. theory.

Endosymbiosis is considered a theory.

Explanation:

Endosymbiosis explains the origin of chloroplast and mitochondria, and it also explains how the eukaryotic cells came to be.

Hope this helps!

If not, I am sorry.

D theory endosymbiosis is considered to be a theory because it is where one organism lives inside the other

according to the avma, which method is acceptable, when used by itself, for euthanasia of rabbits?

Answers

According to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.

What is the method of euthanasia in rabbits?

Recommended methods of euthanizing rabbits depend on the facilities and conditions in which the animals are housed and maintained. in a controlled as a biomedical research facility where researchers have access to restraint devices and controlled drugs, intravenous injection of barbiturates is generally used.

With this information, we can conclude that according to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.

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Question 4 of 5
When was Pluto formally downgraded from planet to dwarf planet?

Answers

Answer:

August 2006

Explanation:

What would most likely prevent the outside-in model from becoming an accepted scientific theory

Answers

Answer:

THE RESEARCH

Explanation:

Answer:

the research

Explanation:

A simulation shows whether changing various weather conditions increases
the likelihood that a hurricane will form. Which type of model is this?
• A. It is mathematical.

B. It is physical.
• C. It is conceptual.
O D. It is computer-generated.

Answers

The type of model which shows the transformations of weather conditions that increase the likelihood that a hurricane will form is conceptual. Thus, the correct option is C.

What is Simulation?

Simulation may be defined as a standard that is developed and designed to mimic the function and procedure of a current real-life system or genuine spectacle, so as to improve the knowledge to investigate, examine, and construct reported conclusions about it.

It shows the conceptual model of simulation because it demonstrates the association between the cause and the effect.

In the context of this question, the simulation which shows whether changing diverse weather conditions improves the probability that a hurricane will create is neglected.

Therefore, the correct option for this question is C.

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The common health-associated infection seen in an outpatient setting, called mrsa, is caused by which type of bacteria?.

Answers

Methicillin-resistant-staphylococcus-aureus (MRSA) infection is caused by the bacteria called staphylococcus aureus, which leads to skin infections in mild form and respiratory diseases in severe form.

Hospital-Acquired MRSA – is associated with infections that are caused due to exposure to hospital or nursing home environments.The infection can be caught through direct contact or contaminated hands. Sometimes touching used surgical instruments or infected bedsheets can also pass on the infection leading to severe pneumonia or blood infections. Hence, people hospitalized for longer durations, live in nursing homes, or visit hospitals regularly without protection are prone to get a staph infection.Hospital acquired MRSA often causes severe symptoms compared to community-acquired MRSA due to prolonged exposure to bacteria.

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Fungi are divided into subgroups based on their methods of ____________.

Answers

Fungi are divided into subgroups based on their methods of sexual reproduction.

Fungi division

Fungi are divided into 4 groups, namely:

ChytridiomycotaZygomycotaAscomycotaBasidiomycota

The division into the different groups is based on the methods of sexual reproduction used.

Zygomycota produce zygosporesAscomycota produce ascosporesBasidiomycota produce basidiosporesChytridiomycota produce diploid zoospores

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What makes up muscle tissue?
organisms
organ system's
organs
O cells

Answers

Answer:

Cells

Explanation:

The basic unit of living things is cells , some cells make up tissues , tissues make organs and organs make organ system , in a normal human (organism) there are 11 organs .

PLEASE GIVE BRAINLIEST

Dihybrid crosses
???​

Answers

Answer:

The answer is 25% tall/green, 25% tall/white, 25% short/green and 25% short/white

Hope it helps!

This skeleton belongs to americon museum of natural history.find out the name of the animals to which this skeleton lelongs.does this animal still exist

Answers

Answer:

na the animal don't exist in today's life

When using Triple Sugar Agar, select the coloration that can be expected with different bacterial growth (select all that apply). Group of answer choices Yellow butt with a red slant Yellow butt with a yellow slant Yellow butt with a green slant Purple slant Red butt with a red slant Black and red slant Metallic green slant Red butt and slant with bubbles

Answers

The coloration that can be expected with different bacterial growth when using Triple Sugar Agar are:

Yellow butt with a yellow slantYellow butt with a red slant

What is bacteria?

Bacteria are simple and microscopic organisms which are mostly pathogens of different infectious diseases

For growth to occur in bacteria, different kinds of nutrients are needed in the process called growth media.

Two different growth media which bacteria uses to grow are:

Liquid growth mediaSolid growth media

In conclusion; The coloration that can be expected with different bacterial growth when using Triple Sugar are Yellow butt with a yellow slant and Yellow butt with a red slant

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The most common use of radioactive isotopes in medicine is to diagnose disease. Typically, radioactive materials are injected into the body and then radiation-detecting cameras are used to build images of affected body parts or particular types of cells. This equation models the amount of a radioactive isotope in the bloodstream minutes after it is injected:

Answers

Radioactive substances are employed in therapy to destroy malignant tissue, shrink a tumor, or lessen discomfort.

What is the radioactive elements?

Two or more chemical species of an element with varying atomic masses and unstable nuclei are referred to as radioactive isotopes. Because of the excess radiation that these isotopes produce in the form of alpha, beta, and gamma rays.

Nuclear medicine treatments use a tiny amount of radioactive substance called a radiopharmaceutical to assist diagnose and cure disorders. To identify disorders, some radiopharmaceuticals are utilized in conjunction with imaging technology. To reduce or eliminate a cancerous tumor, radiopharmaceuticals can also be injected close to the tumor inside the body.

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what is meant by acropetal succesion?​

Answers

Answer:

This is when older flowers are more at the base whilst younger/newer flowers are above

Explanation:

It's all about flower arrangement

An experiment consists of drawing two balls out of an urn with replacement. The urn has 1 red ball, 1 white ball, and 1 blue ball. How many possible outcomes have one white ball?

Answers

6 I think? I really don’t know sorry
What grade is middle school georgaphy if your learning stuff like earths surface plates?

What are the defining characteristics of ray-finned fishes?

Answers

Ray-finned fishes possess the characteristics of chordates.

Characteristics of ray-finned fishes

They are a group of fishes known as Actinopterygii in the Chordate phylum.

Thus, they possess the basic characteristics of chordates, such as:

Possession of hollow nerve cordPossession of notochordPossession of post- tailPossession of pharyngeal gill-slits

This is in addition to basic features of fishes such as lateral lines, swim bladder, etc.

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a nucleus can be found in which type of cell?

a. prokaryotic cells
b. eukaryotic cells
c. all cells.

Answers

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: b. Eukaryotic \:\: cells[/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

Nucleus is only found in developed cells (eukaryotic cells), because they have well differentiated cell organelles and are mich developed.

where as, prokaryotic cells are primitive cells that have no distinguished organelles and many organelles aren't even present. they have genetic materials spread over in cytoplasm.

Hence, we can conclude that Nucleus can only be found in eukaryotic cells.

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Answer:

b. eukaryotic cells

experiment in how to destarch the plant for photosynthesis​

Answers

Answer:

all plants have starch in their green leaves so before we use the photo status experiment the intestinal stars present in it leave must be removed their for the plant must be discharge by keeping plant incompletely dark room for at least 3 days

research on the trait perspective on leadership in groups shows that:

Answers

Research on the trait perspective on leadership in groups shows that leaders are not born but develop.

What are genetic-environment trait relationships?

Genetic-environment relationships makes reference to the contribution of genetic and environmental factors to a given trait.

Complex behavioral traits such as leadership are shaped by environmental factors.

In conclusion, research on the trait perspective on leadership in groups shows that leaders are not born but develop.

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Why is blood glucose self-monitoring preferred over urine glucose testing?

Answers

Blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

What is glucose testing?

Glucose testing refers to the methodologies to measure the amount of this simple carbohydrate in the body tissues/organs.

Glucose testing is fundamental to assess the diseases associated with the metabolism of this nutrient (e.g., diabetes)

In conclusion, blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

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Assertion (A): A proton gradient cannot be established in the mitochondria.
Reason (R): Hydrogen molecules are pumped out of an internal space (the matrix) in the mitochondria.
Which of the following is TRUE for the above statements?
Both (A) and (R) are true, and (R) is the correct explanation of (A)
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
(A) is false, but (R) is true.
(A) is true, but (R) is false.

Answers

Based on the nature of proton gradient, (A) is false, but (R) is true.

What is a proton gradient?

A proton gradient is a gradient that exists due to difference in proton concentration between the inner and outer mitochondrial matrix.

An assertion is a statement or claim stating a given position.

Assertion (A): A proton gradient cannot be established in the mitochondria.Reason (R): Hydrogen molecules are pumped out of an internal space (the matrix) in the mitochondria.

The assertion, A, is false because a proton gradient is established in the mitochondria due to the function of the proton pump which pumps out protons from the inner mitochondrial matrix to the outer membrane.

The reason, R is true as hydrogen molecules are pumped out of an internal space (the matrix) in the mitochondria by the proton pump.

Therefore, (A) is false, but (R) is true.

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Clouds can decrease the range of daily temperatures because ________.

Answers

According to the research, low and thick clouds reflect solar radiation and help to send it back into space during the day.

What are the clouds?

It is the mass of aqueous vapor that is suspended in the atmosphere that reflects solar radiation contributing to the cooling of the Earth's surface.

One of the determining factors of daily temperatures is the reflection of solar radiation by the clouds, when there are no clouds in the sky, diffuse radiation is produced through the process of diffusion through atmospheric particles.

Therefore, we can conclude that according to the research, low and thick clouds reflect solar radiation and help to send it back into space during the day.

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digestive tract & ____________________ together constitute the digestive system.

Answers

Answer:

Digestive tract & Accessory glands together constitute the digestive system.

Explanation:

The accessory organs are the teeth, tongue, and glandular organs such as salivary glands, liver, gallbladder, and pancreas.

How many ATP are generated from the E.T.C?

Answers

Thirty-four (34) ATP is generated from the electron transport chain.

The electron transport chain

It is one of the steps through which energy is extracted from glucose during respiration.

The first step is glycolysisThe second step is the citric acid cycleThe last step is the electron transport chain

Two molecules of ATP are generated from glycolysis, 2 are generated from the citric acid cycle, and 34 are generated from the electron transport chain.

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what are tissues composed of in addition to cells?

Answers

There are four types of tissues in the organism (epithelial, muscular, connective, and nervous). Tissues are composed of cells and extracellular matrix.

What are tissues composed of?

Tissues are cells organized and associated, accomplishing different functions in the organism.

There are four types of tissues: epithelial, muscular, connective, and nervous.

All of them are composed of the same components that might vary according to the tissue and its functions.

Cells

Cells are the main component of tissues. Their shape, size, organization, and closeness vary from tissue to tissue.

Extracellular matrix

The extracellular matrix is the space between cells. It varies in size, state,  and composition depending on the tissue.

It contains proteins, water, salts, and other macromolecules. This composition also varies.

Among their many different functions, we can mention hydration, mechanical pressure resistance, reproduction and cell differentiation, motility, substances diffusion, communication between cells, and damaged tissue repairing, among others.

In addition to cells, the extracellular matrix compose tissues.

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What is the role of the eukaryotic promoter in transcription?.

Answers

Answer:

The purpose of the eukaryotic promoter is to bind transcription factors that control the initiation of transcription.

The promoter region can be short or quite long; the longer the promoter is, the more available space for proteins to bind

What are the classification categories

Answers

The classification categories of organisms are:

KingdomPhylumClass Order Family Genus Species

What is taxonomy?

Taxonomy can be defined as a scientific method which is used by researchers for the naming, classification and description of the various species of organisms such as humans, animals, and plants.

In Science, the classification categories of organisms include the following:

KingdomPhylumClass Order Family Genus Species

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Question 1 (Multiple Choice Worth 2 points)
(04.06 MC)
A population of mice thrive when grain and seed resources are plentiful. When food runs out, they compete with
one another for food and no longer produce offspring. This is an example of
O biotic potential
O group behavior
O individual behavior
O interspecific competition

Answers

individual behavior

Explanation:

if the mice are competing with each other that means that it's every man for himself.

The given example suggests the individual behavior of the mice because they change their behavior according to conditions.

How a population of mice affects the resources?

In nature, organisms search for resources first, and if this availability is fulfilled, they reproduce themselves and increase the number of offsprings, but when the availability of resources are depleted they compete with each other.

The individual behavior of the mice in the population is defined as some mice fighting for the same resources and others mating with each other.

In the given question interspecific competition is not a right choice because it is the competition between the organism of two different species for the same resources.

Therefore, option C is correct.

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"Give two common characteristics of Archaea. Remember to use correct grammar and complete sentences" ASAP

Answers

Answer:

i thing this is answer

Explanation:

i thing so but i am not sure

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