Are all organisms with similar physical characteristics related to each other? If not, why? (2023)

Biology Primary school


answer 1


Yes, all organisms with similar physical characteristics are related to each other.


Species with common characteristics are closely related. They can even cross with each other. Those with similar physical characteristics tend to be closer than others. Species can share the same physical characteristics because they had common ancestors.

Scientists compare the DNA of organisms and find that species with the same DNA are related to each other. Even two similar organisms can evolve over time to adapt to their environment. There would be several reasons for its development. In short, they are closely related and contribute to the ecosystem.

answer 2

Answer: Yes, all organisms with similar physical characteristics that are related to each other

Explanation: common ancestor

related questions

For example, from forgetting where you parked your car yesterday to remembering where you parked it today, which of the following causes the forgetting?
Choose one:
A. Ten
B. Retrospective intervention
w. Insanity
D. Motivated forgetting



The answer is a recursive interface, but induced forgetting is also acceptable.


Retroactive interference occurs when old information interferes with the learning of new information. For example, you may not be able to remember your new phone number because your old number bothers you.

Forgetting can also happen through induced forgetting or for a specific reason. Sometimes we intentionally forget information like where we parked our car yesterday so we can remember where we parked it today. We may also forget information that we find inconvenient or stressful. For example, a person may forget a dentist appointment.


induced forgetting


Well I did the test and if you look at section 02.06 it says the following

What part of blood closes a wound? A. Plasma
B. Hemoglobin
b. platelets
D. Capillaries


The answer is C. platelets


The correct answer is C. Platelets



A particular stem cell produces only muscle cells. What type of stem cells are they? THE
A. Versatile
B. Almighty
C. Unique
D. Pluripotente



(Video) What are the Physical Characteristics of the Earth Sun & Moon?

The cell type in question is a unipotent cell


The answer is c

C. Unique


Why do iguanas have spines?


Iguanas have spines on their backs that help protect them from predators. They also have a lot of extra skin under the neck called a dewlap. This dewlap helps them regulate their temperature, which is useful since they are cold-blooded and their bodies do not automatically regulate their body temperature.



An idea backed by evidence


The man above is wrong



The answer is c


An educated guess is a hypothesis, leaving two answers. An idea supported by evidence is essentially the same as a hypothesis.

Nuclear power plants require a lot of water to operate. Choose the best answer from the options given




Nuclear power plants must be kept at a relatively low temperature, which means they need a lot of cooling. The most commonly used cooling technique is water circulation similar to central heating, which is why a lot of water is used.





Many corn growers switch their crops to soybeans during a non-corn growing season. The most likely impact of this practice on soil quality is


It helps reduce soil erosion and increase soil fertility and crop yields.

Answer: The answer is D


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Carbon in the ocean comes from the atmosphere.
T or D?


Answer: The process that microscopic sea plants call photosynthesis turns carbon into organic matter.



Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean.


Photosynthesis of microscopic marine plants (phytoplankton) in sunlit surface waters converts carbon into organic matter.

Respiration of aquatic life reduces the concentration of carbon dioxide in the oceans. Carbon dioxide dissolves more easily in water than in the atmosphere. Plankton on the surface transport carbon from the atmosphere to the ocean.

Bacteria convert ammonia into nitrates.


Answer: Nitrifying bacteria in the soil convert ammonia to nitrite (NO 2 - ) and then to nitrate (NO 3 - ). This process is called nitrification. Compounds such as nitrates, nitrites, ammonia and ammonium can be taken up by plants from the soil and then used to form plant and animal proteins.


Some scientists argue that humans are responsible for increasing CO2 in the atmosphere. Assess which system is likely to be affected by increased CO2 levels and predict the impact of increased atmospheric CO2 on natural and agricultural ecosystems.


Yes, human activities are the main cause of the increase in the amount of carbon dioxide in the atmosphere.


The increasing amount is a major problem for the atmosphere in today's world. Human activities play a key role in the increase. Carbon emissions are mainly due to environmental pollution. Pollution from vehicles, wax factories, chemical factories, etc. There are also some other types of activities that emit carbon, such as burning coal and plastic, which produces carbon in very large quantities and the carbon goes directly into the atmosphere.

Natural and agricultural ecosystems suffer as a result of increased pollution. it causes air pollution as a result of which the quality of the crop decreases daily. In addition, the natural vegetation has problems because even the rainwater is not clean. Acidity in natural rain increases every year. All these activities lead to global warming, which will one day wipe out our planet. Therefore, it is imperative to take strict legal measures to protect the environment and reduce the volume of production.

Bacteria play many roles on Earth. Choose all the correct answers

Help make some kinds of food for the people


Mutually like the human colon, which produces vitamin K

Fix atmospheric and soil nitrogen for plant use

Victory dance with the stars


Answer: All of the choices except Winning Dancing with the Stars.

Explanation: Bacteria play many roles on this planet.

Some bacteria make food for us, such as yogurt and baked goods. Some bacteria live in our body and produce some useful vitamins for our body and help in digestion. There are many bacteria that live in the roots of some taller trees and fix atmospheric nitrogen for the plant. Certain types of bacteria cause various diseases in humans, animals and plants.

In the biosphere, what are some of the most important abiotic factors that determine the distribution and type of plant communities?

(Video) Physical Characteristics of Animals


Temperature, precipitation and geological features would be the main abiotic factors determining the distribution of plants.

Which of the following is bonded to carbon to form a molecule?
one. an organism
B. every living organism
C. a connection
D. um núcleo


B. Every living organism

What is a karyotype and how can it be used to study human chromosomes?



A karyotype is the set of chromosomes that a particular species or individual possesses.

can be used to examine human chromosomes and provide information about the type or arrangement of chromosomes, thus knowing the data, properties and results of those chromosomes


To maintain the correct amount of salt in its body, the hippocampus must use an energy-intensive process to get rid of excess salt. What process is he likely to use? endocytosis

Active transport

passive transfer



Answer: Active transport

Explanation: Active transport is an energy-intensive mass transfer process

Answer: Active transport


The movement of ions such as NaCl requires energy to move through the membrane. This is because the movement of ions is from an area of ​​lower concentration to an area of ​​higher concentration.

If the particles move against the gradient, the process requires energy.

The movement of salt from the outside into the hippocampus is an example of active transport.

If the production time is 90 minutes and the initial population is 10^3, how many bacteria will grow after 8 hours?




Explanation: If 1,000 bacteria take 90 minutes to grow, the bacterial population reaches 5,333 in 8 hours.

Decide whether each statement about hormones is true or false. TrueFalse Homeostasis is regulated by two systems. the nervous system and the endocrine system.

True False Hormones released by the endocrine system are secreted through the ducts.

True False Steroid hormones bind to receptors on the surface of a cell.

TrueFalse Hormones affect almost every cell and process.

True False Peptide hormones migrate into the cell nucleus.

(Video) 6th Life Science Wk1– Classification




1: true

2: wrong

3: true

4: true

5: wrong








Is it a eukaryotic or prokaryotic cell membrane?



Explanation: Both prokaryotes and eukaryotes contain cell membranes

Why do gardeners prefer vegetative cultivation of certain plants?



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As the water vapor continues to condense, tiny water droplets develop in the air. What can happen next?



Clouds are forming.


  • As water evaporates from the surface of bodies of water, it rises to where it is cooler.
  • Water vapor condenses into small water droplets.
  • When these droplets combine, they form a heavier mass of water droplets.
  • These form the rain cloud.
  • When these clouds become laden with water, the water droplets fall as rain.


rain clouds


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Are all organisms with similar physical characteristics related to each other? If not, why? ›

In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution.

Are all organisms with similar physical characteristics related to one another? ›

Overwhelming evidence shows us that all species are related--that is, that they are all descended from a common ancestor. More than 150 years ago, Darwin saw evidence of these relationships in striking anatomical similarities between diverse species, both living and extinct.

How are all organisms similar to each other? ›

Every living creature has DNA, which has a lot of inherited information about how the body builds itself. Scientists can compare the DNA of two organisms; the more similar the DNA, the more closely related the organisms. This method can also help when looks are deceptive.

Why do some organisms look similar to one another even though they are not closely related? ›

Answer and Explanation: At times, organisms that are not closely related look similar because of convergent evolution. This is the result of having similar environments.

Why might very different organisms share some of the same characteristics? ›

Species may share similar physical features because the feature was present in a common ancestor (homologous structures). Molecular biology. DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are.

Do all organisms share the same characteristics? ›

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.

What are organisms in the same have similar characteristics? ›

In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution.

Are all organisms similar justify your answer? ›

No, all organisms are not similar because they vary among others with respect to their habitats, cells, genetic makeup, metabolic processes, etc. Hence they are classified into various classes/groups based on the above categories.

Which organisms are closely related to each other Why? ›

When two organisms are related, it means that they share a common ancestor. The more recent the ancestor, the more closely related the organisms are. Your closest relatives would be siblings (brothers and sisters) because you share the closest common ancestor—a parent.

Why all living organisms are linked to one another? ›

They share common genetic material but to varying degrees. They have genetic material of the same type. No worries!

How can there be so many similarities between organisms but also so many different types of plants animals and microorganisms? ›

How can there be so many similarities among organisms yet so many different kinds of plants, animals, and microorganisms? Biological evolution explains both the unity and the diversity of species and pro- vides a unifying principle for the history and diversity of life on Earth. ...

Why isn t the presence of similar traits in two organisms necessarily evidence that the two organisms shared a common ancestor? ›

They may go through different developmental and functional stages before they are fully alike. Analogous structures are not necessarily evidence that two species came from a common ancestor. It is more likely they came from two separate branches of the phylogenetic tree and may not be closely related at all.

Do all animals from the same group have the same characteristics? ›

Animals can be divided into many groups. These groups are decided based on their characteristics. All animals have some basic features in common. That does not mean they are the same.

Do you think all organisms are related at some point? ›

Just as the tree of life illustrates, all organisms, both living and extinct, are related. Every branch of the tree represents a species, and every fork separating one species from another represents the common ancestor shared by these species.

Are all organisms in a species identical to each other? ›

Yet in another sense, each individual organism is unique because it inherits and activates different genes. In the case of individuals of the same species, these variations are slight and produce minor variations in traits. For example, individual humans share 99.9% of their genes with one another.

Are all organisms of the same species the same? ›

Some species appear similar to one another. For instance, the African fish eagle and bald eagle are different species that look remarkably alike. On the flip side, organisms that belong to the same species can look very different from one another.

What characteristics are shared by all organisms? ›

Big Ideas: All living things have certain traits in common: Cellular organization, the ability to reproduce, growth & development, energy use, homeostasis, response to their environment, and the ability to adapt. Living things will exhibit all of these traits.

What makes two organisms the same? ›

Two organisms belong to the same species when they are genetically similar and can produce live offspring. These offspring survive until adulthood and undergo reproduction themselves.

What makes organisms different from each other? ›

Most evolutionary biologists distinguish one species from another based on reproductivity: members of different species either won't or can't mate with one another, or, if they do, the resulting offspring are often sterile, unviable, or suffer some other sort of reduced fitness.

Are all living organisms similar? ›

No, all organisms are not similar.

Organisms are grouped as microbes, plants (autotrophs), animals (heterotrophs) and decomposers.

Are organisms in the same more closely related? ›

Organisms that share similar physical features and genetic sequences tend to be more closely related than those that do not. Features that overlap both morphologically and genetically are referred to as homologous structures; the similarities stem from common evolutionary paths.

How can you say that two organisms are closely related *? ›

The more genes they share, the more similar. Scientists use the genomes of two organisms and decide based on how many similarities of genes are present; to find out how closely related these organisms are. If these organisms' genomes show dissimilarities, they are not said to be as closely related organisms.

Why would closely related organisms have many similarities in their development? ›

Similarities shared by closely related species (species who share many characteristics) are homologous, because the species have descended from a common ancestor which had that trait. Homologous structures may or may not serve the same function.

What is the most common relationship between living organisms? ›

Because different species often inhabit the same spaces and share—or compete for—the same resources, they interact in a variety of ways, known collectively as symbiosis.

Are all living organisms linked to one another because they share common genetic material? ›

All organisms share common genetic material, i.e., DNA and RNA.

What are three ways in which all organisms are similar? ›

For instance, they are made up of cells like those of other animals, have much the same chemical composition, have organ systems and physical characteristics like many others, reproduce in a similar way, carry the same kind of genetic information system, and are part of a food web.

What are all the organisms that are of the same species and living in the same area called? ›

Population: A population is a group of organisms of the same species that live in the same area at the same time.

What is a relationship between two or more organisms of different species in which both organisms benefit? ›

Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.

Why do different organisms have the same or similar genes? ›

These shared genes are evidence of evolution from a common ancestor and the relatedness of all life on Earth. The shared genes are called homologous genes, or genes which share a common ancestry either between or within species.

What are two reasons why individuals within a species are not identical to one another? ›

Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms.

Is it possible to find the same gene in two different kinds of organisms but not find the protein that is produced from that gene? ›

Is it possible to find the same gene in two different kinds of organisms but not find the protein that is produced from that gene? Yes, this phenomenon is made possible by latent genes, or genes in an unexpressed state.

Do all animals have the same characteristics? ›

These four characteristics - cell structure, movement, consumer habits, and reproduction habits - are the four common characteristics of all animals.

Can there be different species of the same animal? ›

Animals that seem identical may belong to completely different species. This is the conclusion of researchers in Sweden who have used DNA analyses to discover that one of our most common segmented worms is actually two types of worm.

What characteristics are not shared by all animals? ›

Correct answer: The presence of a coelom is not a characteristic of all animals.

Are organisms with anatomical similarities closely related? ›

Organisms that are closely related to one another share many anatomical similarities.

Are organisms with genetic similarities more closely related? ›

Organisms that share similar physical features and genetic sequences tend to be more closely related than those that do not. Features that overlap both morphologically and genetically are referred to as homologous structures; the similarities stem from common evolutionary paths.

Do all organisms have similar genetics? ›

All living organisms store genetic information using the same molecules — DNA and RNA. Written in the genetic code of these molecules is compelling evidence of the shared ancestry of all living things.

What characteristics do all organisms have in common? ›

Big Ideas: All living things have certain traits in common: Cellular organization, the ability to reproduce, growth & development, energy use, homeostasis, response to their environment, and the ability to adapt. Living things will exhibit all of these traits.

Are organisms most closely related to each other? ›

Species. The species is the most fundamental unit in taxonomy and ranks at the base of the biological classification hierarchy. Members of the same species share the same evolutionary history and are more closely related to each other than they are to any other organisms, including other members of the same genus.

Do organisms with similar body parts always share a common ancestor? ›

While similar structure can indicate relatedness, not all structures that look alike are due to common ancestry. Analogous structures evolved independently in different organisms because the organisms lived in similar environments or experienced similar selective pressure.

Are similarities in structure or body parts of some organisms but are not related to each other? ›

Analogous structures are similar structures in unrelated organisms. These structures are similar because they do the same job, not because they share common ancestry. For example, dolphins and sharks both have fins, even though they aren't related.

Which organisms are most closely related and why? ›

Amoeba and Euglena are more closely related to each other than any other pair of organisms as they both belong to the Phylum Protista and show similar characteristics.

Can all of an organism's characteristics be explained just by genetics? ›

An organism's characteristics are determined not only by genes but by and interaction of environmental factors and genes. The environment can play a role in a person who has genes that give them a propensity to get disease but creating favorable conditions for those genes to be expressed.

Why do all organisms share similarities in their genetic code? ›

1) We share a common ancestor

The first reason is that we all came from a common ancestor. In other words, we all started out with the same DNA way back when. The different animals we see today are due to lots of small changes that have happened in living things since then.

Do all living organisms have in common? ›

Living things have a variety of characteristics that are displayed to different degrees: they respire, move, respond to stimuli, reproduce and grow, and are dependent on their environment.

What are organisms with many characteristics in common and are genetically related? ›

A group of similar organisms which are genetically distinct and reproductively isolated, is called a Species. Species in biology, classification, comprising related organisms that share common characteristics and are capable of interbreeding. A species is the biggest gene pool possible under natural conditions.

What do all organisms have in common evolution? ›

According to modern evolutionary biology, all living beings could be descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth. Common descent is an effect of speciation, in which multiple species derive from a single ancestral population.


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