How do scientists know if two organisms are members of the same species?

A. They can mate with each other and create gene pools.

B. When they mate they produce fertile offspring?

C. Mating between them creates many variations.

D. They form several adaptations after they mate.

Answers

Answer 1

Explanation:

mmmmm ... I think there ability to mate with each other and create gene pools is the answer

but sorry if it turns out to be wrong


Related Questions

Match each term with its best definition.
Plutons, Sills, Injection, D*kes

Check the comments for the answer.

Answers

Answer:

hey u blocked me pliz unblock me yer

Explanation:

Answer:

across existing rock.

Which organism is an example of a club fungus?

Answers

Answer:

Mushroom is an example of club fungus

Explanation:

hope it helps, have a great day!

Explanation:

the division of fungi known as the club fungi, basidiomycota. mushroom, puffballs, and shelf fungi are all members of the group, as are the plants rust and smuts. hope it helps

Which of the following is a characteristic of unicellular organisms?

Answers

Answer: They have asexual reproduction, so an organism can produce its descendants. They can be eukaryotes or prokaryotes. Their internal part is formed by a liquid different from their external environment that allows the realization of biological processes.

Explanation:

Hormone A and hormone Bare part of a positive feedback mechanism. What will happen over time after hormone A is released?
Less of hormone A will be released.
More of hormone A will be released
Less of hormone B will be released

Answers

more of hormone a will be released

Answer:

ur

Explanation:

jurhrfrgrh5 4hie riwje

One way in which organisms maintain homeostasis is by detecting foreign cells and particles like pathogens and cancer cells. once the pathogen is detected and identified, other systems in the organism's body can attack the invader, thus keeping the organism healthier. cells of the human immune system are finely tuned to recognize and respond quickly to disease-causing organisms.

Answers

Complete question:

One way in which organisms maintain homeostasis is by detecting foreign cells and particles like pathogens and cancer cells. once the pathogen is detected and identified, other systems in the organism's body can attack the invader, thus keeping the organism healthier. cells of the human immune system are finely tuned to recognize and respond quickly to disease-causing organisms. (Note: you will find model 1 in the attached files)

A pathogen has entered the bloodstream of an individual. Draw the symbol that represents the pathogen.One response of human immune system is endocytosys of the pathogen by a phagocyte (a type of white blood cell). Refer to model 1. Which diagram in the cell mediated response illustration shows this porcess?Draw the symbol that represents phagocytesAnother type of white cell that is involved in the cell mediated response is a helper T-cellDraw the symbol that represents the helper T-cell in model 1Circle the speciealized surface proteins on a helper T-cellAccordign to model 1, are all the helper T-cell the same? Justify your answer with specific evidence from model 1The following statement are labeled for the cell mediated process in model 1

--- a piece of pahtogen is presented on the surface of the phagocyte

--- the helper T-cell disperses a chemical signal to activate other immune response systems

--- the helper T-cell binds to the piece of pathogen presented on the phagocyte

--- Pathogen is broken appart by chemicals in the phagocyte

Determine the order of statements by referring to model 1Decide where each statement belongs in the diagram and label model 1 appropriately. More than one statement might match a diagram, and some diagrams may not match any statement.According to model 1, do helper T-cell interact with a free pathogen in the blood?

Answer

The pathogen in the model is represented with a star.The first diagram in the model represents the phagocytosis process. And the phagocyte cell is represented by the bigger irregular cell.  In model 1, T cells are the perfectly circular-shaped cells with the Th inside. And the surface proteins in the T-cell are those sticks attached to their membranes. If you look at the model carefully, you will see that these proteins are different in each T-cell. The union site with the antigen changes from cell to cell, making each T-cell specific. One cell has squared binding sites, the other one has semicircular binding sites, while the last one has triangular binding sites. Order of statements: Pathogen is broken appart by chemicals in the phagocyte (Diagram 1 - 3th cell) A piece of pahtogen is presented on the surface of the phagocyte (Diagram 1 - 4th cell) The helper T-cell binds to the piece of pathogen presented on the phagocyte (Diagram 3)The helper T-cell disperses a chemical signal to activate other immune response systems (Diagram 4)T-Cells do NOT interact with free pathogens. They interact with the antigens on the phagocyte cells.

Explanation:

You will find the complete question, the answer, te explanation and the symbols and representations in the attached files

Trisha measured the
volume of a cube using a
ruler. The length, width and
height all measured 8 cm.
The mass of the cube was
128 9. what is the density of
the cube? help

Answers

Answer:

0.25

Explanation:

density = mass / volume

data given :

mass=128 g

volume of a cube = L *L *L (L is length)

=8*8*8

=512 cm³

density = 128/512

=0.25 g/cm³

Trisha measured the volume of a cube using a ruler. The density of the cube is 0.25 g/cm³.

What is density?

The mass per unit volume is known as density. A scalar quantity, density. It is represented by the letter D, and the Greek letter rho is used as the sign for density. Mass divided by volume is how density is computed.

Mass is a physical body's total amount of matter. Mass is defined as the sum of the moles of the material and the compound's molar mass. Volume is the space taken by an object

Given the mass = 128 g

The volume of a cube = L x L x L (L is length)

Putting the value in  the formula

8 x 8 x 8 =512 cm³

Density is mass/volume

Putting the value in  the formula

density = 128 / 512 = 0.25 g/cm³

Thus, the density of the cube is 0.25 g/cm³.

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What ratio of guinea pigs in the offspring would you predict from a Ss x ss cross?

Answers

Answer:

75:25

75% S

25% s

Explanation:

The ratio of guinea pigs in the offspring that we would predict from a Ss x ss cross is 1:1.

What is a genetic cross?

The deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent.

In a cross between a heterozygous dominant (Ss) guinea pig and a homozygous recessive (ss) guinea pig, the expected genotypes would be :

Ss (heterozygous dominant) :1ss (homozygous recessive) : 1

S, for every guinea pig that is homozygous dominant (Ss) there will be 2 guinea pigs that are homozygous recessive (ss), resulting in the ratio of 1:1. Therefore, both the ratios will be equal. Therefore, the resulting progeny will have both the genotypic and the phenotypic ratios sames.

The punnet square is given below.

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Which statement best describes the process of crossing over? (1 point)
A.Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
B. Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.
C.Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
D.Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.

Which cell replicates via meiosis?
A.sperm cell
B. red blood cell
C. heart cell
D.skin cell

Answers

Answer: process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other

Explanation: sperm cells

The statement that best describes crossing over is "Homologous chromosomes pair up, and non-sister chromatids exchange genetic material"Sperm cell replicates via meiosis

CROSSING OVER:

Crossing over is a unique process that occurs only during meiotic division. Crossing over, also called recombination, occurs during prophase I of meiosis.

Crossing over is the process by which non-sister chromatids of homologous chromosomes (a pair of similar but non-identical chromosomes from each parent).

Crossing over ensures genetic diversity in the gametes (daughter cells) produced from meiosis:

MEIOSIS:

Meiosis is the type of cellular division employed by sexual reproducing organisms to create sex cells or gametes.

Meiosis produces four genetically different daughter cells called gametes.

Sperm cells are gametes produced by male organism while egg cells are gametes produced by female organisms.

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Which structure is responsible for the passage of materials into and out of the cell?

Answers

Answer:

A

Explanation:

It is the cell membrane

The plasma membrane is a boundary of cell responsible for the movement of any substance in and out of the cell, hence a is the correct option.

What is a cell membrane?

All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from the external environment. The cell membrane controls the flow of substances into and out of the cell.

Watery fluid surrounds and fills cells, this liquid facilitates the movement of substances across the cell membrane as well as within and outside the cell.

Some solutes (solids) can pass through cell membranes depending on their nature.

Therefore cell membrane allows the substance to pass into cell and out of the cell, hence option a is correct.

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Does each square on a "punnet square" represent 4 offspring or does it represent the odds of one offspring?

Answers

Answer:

Explanation:

Punnet square is a square diagram used to predict the genotypes of the offspring of a particular cross or breeding experiment.

It represent 4 offsprings of the cross between two parents. Each punnet contain the alleles in the right combination and proportion.

Punnet square is use to determine the percentages of different genotypes present in the offspring of two parents and to determine missing alleles in a cross.

it can also be used to predict the percentages of phenotypes in the offspring usually from a parents with known genotypes.

how does it make you feel to know you have likely eaten a genetically modified food?​

Answers

Kinda weird. But I have no feelings over it :)

Answer:

Feels kinda weird knowing that we are eating not organic food but modified. Tastes a bit different.

Explanation:

which statement best describes a bacteriophage? select all that apply

Answers

Answer:

can not answer without the rest of the question

Explanation:

what human activities can redistribute carbon loads in the cycle so that global warming might slow down or decrease choose two different real world examples and explain the flux in carbon loads that would result from an increase in that human activity. make sure to explain what biological physical or geological process would shift the carbon load from one point in the cycle to another.

Answers

Answer:

Reducing the use of fossil fuels in vehicles.

Explanation:

Reducing the use of fossil fuels in vehicles and use of electric vehicles which reduces air pollution as a result decrease or slow down of global warming occur. Use of fossil fuels is the main reason for increasing carbon concentration in the environment. If more plants were planted around the world the high concentration of carbon decreases in the environment due t photosynthesis of plants. Avoid use of activities that increases the carbon concentration in the environment.

Photosynthesis is done by
O Producers
O Consumers
O Oxygen
Carbon

Answers

Answer:

Option A

Producers

Explanation:

As, plants are called producers and they prepare their food with the help of the process called photosynthesis.

Make a claim as to why you need both muscles and bones to move your body. Give examples as evidence and explain your answer.

Answers

Answer: Yes

Explanation: I say yes because i want you to think about a computer, a computer is like the inside of your body. The outside like the keyboard and are the muscles and the special chips and stuff inside of the computer is the bones.

Tokyo will hold the olmics in 2020.into passive​

Answers

Answer:

the Olympics in 2020 will be held by Tokyo .

Answer:

Change it to passive: Tokyo will hold the Olympics in 2020. You can't change it because it is an intransitive verb. ... The Olympics are being held in Tokyo en 2020

Explanation:

What's students scientific question

Answers

Answer:

The scientific question posed by the students, Does compost cause tomato plant to grow faster and taller than the artificial fertilisers...

Select the correct answer.
When do you see a portion of the Moon passing through the Earth's umbra?
O A total lunar eclipse
OB. penumbral lunar eclipse
Ос.
total solar eclipse
OD.
D. partial lunar eclipse

Answers

Answer:

Total Lunar eclipse

Explanation:

Because the umbral shadow is the 'core' of the shadow and is only visable during a total lunar eclips.

hope it helps :)

Darwin observed many finch species on the Galapagos Islands. To explain these observations, he proposed that each species evolved from the same common ancestor, which was a finch species that migrated to the islands from the mainland. What additional evidence did Darwin use to support his explanation?

A. The finch populations were very numerous, and different species often bred with one another.
B. The finch species lived in different habitats on different islands, which isolated them from one another.
C. The finch species were distributed evenly among all of the islands, but did not interbreed.
D. The beaks of the finches were identical, allowing them to eat the same foods on any of the islands.

Answers

B. The finch species lived in different habitats on different islands, which isolated them from one another. is the correct answer, just took the test :)

Answer: B

Explanation:

À Which of the following is used in making cheese and yogurt?
B bacteria
C molds
D lichens
A algae​

Answers

Answer:

Bacteria

Explanation:

Bacteria such as Streptococcus thermophilus and Lactobacillus bulgaricus help curdle the milk which makes them into the cheese and yogurt we eat today.

I hope this helps! :)

Bacteria is the correct answer to this question
The rest don’t apply

IIIII NEEEEEDDDDD HEEELPPPPPPPOO

Answers

Answer:

25% red, 50% pink, 25% white

What happens to most of the sunlight
energy that reaches the earth?

Answers

Answer: In explanation

Explanation:

Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.

Explanation:

Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor.

Which process increases genetic variation?

A:heritable mutation
B:asexual reproduction
C:individual adaptation
D:species overproduction

Answers

Answer:

Species overproduction

Explanation:

The more of the species that are born the more genetic mutation will occur. It cannot be asexual reproduction because by using asexual reproduction, they make genetically identical daughters/sons.

What types of pollutants can interfere
with the health of Wetland Ecosystems?

A) All of the above are threats to Wetlands.
B) Petroleum products such as motor oil.
C) Pesticides.
D) Nitrogen & Phosphorus fertilizer.

Answers

It would be all of the above because they all do damage to a wetland,

Motor oil is very harmful and toxic
Pesticides are bad for the animals and plants
Phosphorus fertilizer is also bad in high amounts that go into wetlands

Explain the theory of evolution
please

Answers

As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.

Answer:

Explanation:

evolution is fueled by something called natural sellectoin to explain this lets say a species of birds move to an island where there are more seeds the ones that are able to eat will survive and reproduce and they will reproduce most times they will overproduce so there is a higher chance of surviving and there bodys will slowly change like the mucles will become stronger along with the beak that is baisicly evolution but this does take millions of years this not a few years and they change this is s extremly slow change.

TRUE or FALSE? The development of homes
and building can threaten Wetland
ecosystems since water is required to
cleared.

A) False
B) True

Answers

Answer:

True

hope you have a great day!


According to the CDC, is the flu vaccine safe and effective?

Need answer ASAP pls I’ll give brainiest

Answers

Answer:

any vaccine effectiveness can vary, recent studies show that flu vaccination reduces the risk of flu illness by between 40% and 60% among the overall population during seasons when most circulating flu viruses are well matched to the flu vaccine.

Explanation:

this is right i had to to a test and a whole lesson over this. ^^^^ that all is from my notes!

Yes, the flu vaccine is safe and effective according to the CDC.

The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccination for everyone aged six months and older, with very few exceptions. The flu vaccine has been extensively studied, and the CDC and other health organizations have found it to be safe and effective in preventing flu infections and reducing the severity of illness for those who do get infected.

The flu vaccine is developed each year to protect against the most prevalent strains of the influenza virus that are expected to circulate during the upcoming flu season. It stimulates the body's immune system to produce antibodies against the virus without causing the flu itself. While the vaccine's effectiveness can vary from season to season due to changes in the circulating flu strains, it still provides significant protection and lowers the risk of severe complications and hospitalization.

As with any medical intervention, there can be some side effects, but they are usually mild and short-lived, such as soreness at the injection site or mild fever. Serious reactions to the flu vaccine are rare. The benefits of getting vaccinated far outweigh the risks, especially for high-risk groups, such as young children, older adults, pregnant women, and individuals with certain medical conditions.

Overall, the CDC and other health authorities strongly recommend flu vaccination as a safe and effective public health measure to protect individuals and communities from the flu and its potential complications. It is an essential part of flu prevention strategies and is encouraged for everyone to help reduce the spread of the virus and its impact on public health.

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How did God distinguish humans from animals?

Answers

1. Humans have true languages.
2. The most important difference is our brain is much better than that of an animals.
3. Animals hunt with god given traits like claws and fangs, humans create their own weapons to hunt.

During sexual reproduction, gametes fuse to form a zygote. Sometimes when gametes are formed
during meiosis, the chromosomes do not completely separate. When a gamete with an extra
chromosome fuses with another gamete to form a zygote, the result is usually a genetic disorder. This
occurrence is an example of which chromosome process?
A. Deletion
B.duplication
C.inversion
D.crossing over

Answers

i am pretty sure it is duplication:)

Provide at least 3 reasons why ice cores can be useful as it relates to climate change and type of organisms living during that time.

Answers

They collect ice cores in many locations around Earth to study regional climate variability and compare and differentiate that variability from global climate signals. The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago.
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A tutor works with a group of students. She charges $40 for the tutoring session plus $30 for each student in the group. What's the equation? what type of force can never do any work on an object I know this is personal but I need some advice, grab some popcorn this is going be a long story.So I just barely went back to real school and these new people move into the house next to me so the daughter is my sisters friend, the other sister is my friend. So on the first day ( or second or third I don't know) My friend wa sitting by me on the bus then her brother ( a grade higher than mine ) sits by me and starts asking all these weird questions, then he askes a question I don't wanna answer then I say I can't tell him and he starts poking me ( yeah i'm serious ) then I went home and my sister started telling me that her friend ( the girl who just moved to my neighborhood) told her that one of her brothers like me. So I thought that kid on the bus ( her brother) likes me. But then today he kept on looking at me then he moved to the seat by my seat and he started showing me stuff on his phone ( I didn't even ask him to) like I was his best friend, then as I was getting off HE POKED ME AGAIN. So my question is does this guy like me ? ( p.s hes 2 years older than me) Please answer anyone I need help And i need lots of feedback. And hurry. i need help on this question not a single boy is in the classroom . is it a descriptive, quantitative, or indefinite. really confused and need answers :) i need it to be factored 12. What is one basic difference between the U.S. Constitution and the Florida Constitution?a. The U.S. Constitution mentions a minimum wage; the state of Florida's constitution does not.b. The U.S. Constitution guarantees more and broader rights than the state of Florida's constitution.c. The U.S. Constitution established a higher minimum wage than the state of Florida's constitution.d. The U.S. Constitution does not mention a minimum wage, while all working Floridians are entitled to be paid a minimumwage. a members only speaker series allows people to join for $7 and then pays $1 for every event attended. what is the maximum number of events someone can attend for a total cost of $50 I dont understand how we can see the sky and clouds and when your outer space you dont see the sky or clouds you only see the ocean and the land? How many 14-inch cubes does it take to fill a box with width 214 inches, length 212 inches, and height 134 inches? Consider the following data for a closed economy: Y = $ trillion C = $ trillion I = $ trillion TR = $ trillion T = $ trillion Use the data to calculate the following. (Enter your responses as integers.) a. Private saving: $ nothing trillion. b. Public saving: $ nothing trillion. c. Government purchases: $ nothing trillion. d. The government budget balance is $ nothing trillion and as a result the government budget is in surplus balance deficit . how does adrenal glands overcome the low surrounding temperature at high altitude? HELP I NEED HELP PLEASE HELLPP-im on this timed thing and its so hardEvaluate the expression when x = 3 and y = 4 Find two numbers that add up to 158. The greater number is 40 more than the lesser number While growing bacteria in a laboratory Petri dish, a scientist notices the number of bacteria over time. The observations are shown in the table.Number of bacteriaNumber of minutesfrom initial state0 45 12810 409615 131072What function can be used to describe the number (n) of bacteria after 2 minutes? Write a recursive definition for the sequence below: I need help I am on A zoom with my teacher Which best describes the narrator in this passage?A. The narrator learns from the mistakes that he makes.B. The narrator makes a lot of mistakes. C. The narrator dislikes household projects.P.S- Im not the brightest What solid figure is described by a dice?A.coneB.cylinder C.prismD.pyramid What is the value of the 1 in the following number. 2043.61