Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species because of differences in color patterns of the feathers and size of the beak. Recently these birds have been reclassified as eastern and western forms of a single species, the yellow-rumped warbler, based on the observation that the two forms interbreed often in nature and the offspring have good survival and reproduction. The earlier classification into two species was using a species concept; the reclassification is using the species concept. _________

Answers

Answer 1

Answer:

morphological; biological

Explanation:

The morphological species concept highlights the importance of physical traits to delimit species. This concept is useful for classifying asexually-reproducing organisms and where lack information on interbreeding (for example, to classify fossils). On the other hand, the biological species concept states that one species represent a group of organisms that can interbreed (or potentially can interbreed) in order to produce fertile offspring. The biological species concept is nowadays the most widely accepted concept to define species.


Related Questions

How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?

Answers

Answer:

Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.

Explanation:

New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.

The soil around a lilac bush was watered with a solution containing
radioactive phosphorus. Several hours later, radiation was detected in it’s
branches. Through which structures did the radioactive phosphorus read
the branches?
A. stomata

B. guard cells

C. xylem vessels

D. phloem vessels

Answers

C or d. it has something to do with vessels pretty sure

Answer:

I think its D

Explanation:

the main goal of photosynthesis is to break down glucose and release ATP.

Answers

Answer:

true

Explanation:

that is true

helpp me plz it would mean alot

Answers

Answer:

Codon

Explanation:

mRNA bases are grouped into sets of three, called codons.

In plant cells, how are chloroplasts and mitochondria related?

Group of answer choices

Chloroplasts manufacture food; mitochondria break down the food and convert it into energy.

Chloroplasts package nutrients; mitochondria deliver the nutrients to other parts of the cel

Chloroplasts absorb water from the surrounding tissue; mitochondria store water.

Chloroplasts direct the functions of the cell; mitochondria deliver messages to all parts of the cell.

Answers

Answer:

Chloroplasts manufacture food; mitochondria break down the food and convert it into energy.

Explanation:

Functions of chloroplasts: help make food

Functions of mitochondria: Break down the food and convert it into energy.

Functions of vacuole: stores water

Functions of the nucleus: direct the functions of the cell

Answer:

Chloroplasts

Explanation:

No decorrer das semanas, a lua apresenta diferentes aspectos. A causa para essas mudanças na aparência do satélite da terra é: A) a sombra da terra refletida sobre a lua. B) o movimento de rotação da lua em torno do seu próprio eixo. C) os raios solares que incidem na superfície da lua. D) a translação da lua ao redor da terra.

Answers

Answer:

C) the sun's rays that fall on the moon's surface.

Explanation:

The moon has different aspects and appearance because of the sun's rays that fall on the moon's surface. The shape of the Moon does not change itself, it occurs due to the sunlight. We only see that part of moon which is lit by the Sun. The phases of moon occur because the Sun lit different parts of the moon when the Moon revolves around the Earth so we can say that sun rays are responsible for the changing of shapes of the moon.

Termites are unable to digest some plant materials (fiber). Termite stomachs contain bacteria that digest the fiber in wood for the termites. In turn, the bacteria are provided with a hospitable environment to carry out their life processes.
commensalism
mutualism
parasitism
competition

Answers

The relationship between the termite and bacteria is called mutualism.

What is mutualism?

Mutualism is the kind of relationship between two organisms in which both organisms benefit from one another.

According to this question, termite stomachs contain bacteria that digest the fiber in wood for the termites. In turn, the bacteria are provided with a hospitable environment to carry out their life processes.

This means that both the termite and bacteria are benefitting from the relationship, hence, is a type of mutualism.

Learn more about mutualism at: https://brainly.com/question/2357375

The relationship described between termites and the bacteria in their stomachs is an example of mutualism. So, the correct option is B.

What is Mutualism?

A symbiotic relationship in which both organisms benefit from the interaction is known as mutualism. In this example, the bacteria give the termites the ability to digest the fiber in wood, which they are unable to digest on their own, in return for the bacteria providing the termites a hospitable environment to live and carry out their life activities.

A specific type of mutualism known as "symbiosis," in which the species involved live in close association with one another for extended periods of time, as illustrated by the termite-bacteria mutualism. These kinds of mutualistic connections are prevalent in nature and can involve a wide range of creatures, including microbes, plants, and insects.

Therefore, the correct option is B.

Learn more about Mutualism, here:

https://brainly.com/question/13800737

#SPJ5

Can only one help me :( I really need help, my life is messed up

Answers

Answer:

I think the answer would be the fourth one.

I believe the answer is the third option because people don’t often buy the ugly fruits and vegetables, which makes them go to waste. By the name of the second paragraph it seems like the author is insinuating a way to make customers buy ugly fruits and make them go to use rather be thrown away. Have a nice day!

In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.

Answers

Answer:

3

Explanation:

Heterozygous mice at both loci would be BbAa genotype.

B (black) is dominant over b (white) but the presence of A results in agouti.

Crossing two heterozygous:

     BbAa    x    BbAa

Progeny

9 B_A_ - Agouti

3 bbA_ - agouti

3 B_aa - Black

1 bbaa - white

Hence, 3 out of 16 progeny will be black in color.

See the attached image for the Punnet's square analysis of the cross.

Joseph sets up an experiment growing corn in three containers. Each container has the same amount of
potting soil and fertilizer. Each corn plant is five centimeters (cm) tall. The containers are all placed so thatthey
receive the same amount of light. All of the plants are grown at the same temperature. The plants are
watered once a week: container #1 receives 10 ml of water, container #2 receives 20 ml of water, and
container #3 receives 30 ml of water. Joseph measures the growth of each plant for six weeks.
Which hypothesis is being tested?
The amount of water supplied will affect plant growth.
The temperature will affect plant growth.
The type of fertilizer will affect plant growth.
The amount of light exposure will affect plant growth.

Answers

Answer:

The amount of water supplied will affect plant growth is the hypothesis being tested.

Explanation:

Because that is the only variable being altered or changed, every other variable remains consistent. In any experiment what your testing is what's altered between each subject or test group.

How does the circulatory system work as a defense system?

Answers

Answer: It provides protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against foreign microbes and toxins. Clotting mechanisms are also present that protect the body from blood loss after injuries.

Answer:

The human circulatory system has a complex network of blood vessels that reach all parts of the body. This extensive network supplies the cells, tissues, and organs with oxygen and nutrients, and removes carbon dioxide and waste compounds.

hope this helps!

Explanation:

An air temperature of -18C is equal to

Answers

Answer:

-0.4 F  

255.15K

Explanation:

Pablo and Johanna have to do a yearlong study for their biology course. After some discussion, they decide to try comparing their dogs and the diet that they feed them. Each has a dog from the pound, and both dogs are less than one year old. Pablo feeds his shepherd-mix dog a special diet of wet and dry foods from the local vet, while Johanna uses generic dry kibble from the supermarket for her bulldog. They want to see which diet results in bigger, healthier, faster-growing dogs. The reason the instructor gives them will include the fact that they have too many ______

Answers

Answer:

The correct answer is - variables that they didn't control and not enough replicates

Explanation:

In this particular case, Pablo and Johanna using too many variables in their experiment or research, All the variables used, are not controlled and with time these variables can not be replicated again on experiment groups.

They did not select a particular age or weight of dogs, the diets are different and they feed dry kibble to only one dog. There are so many variables and for a better result experiment, all variables should be controlled only the independent variable is permitted to manipulate.

What are the major physical barriers to using solar cells and modules?​

Answers

Answer:

Per my research, there are no barriers to using solar cells and modules, and that's why solar has been the majority of new power installed for several years now.

Explanation:

This is what I found while researching but if I am incorrect please correct me. Hope this helped somewhat and have a good one!

( ◑‿◑)ɔ┏--┑٩(^◡^ )

Company's of the innate response include
A. The B cells and T cells
B. the skin and general immune cells
C. the effector cells and T cells
D. the antibodies and memory effector cells​

Answers

I believe the answer is b

Nuclear reactors do not create energy, instead they convert

Answers

Answer: The answer is A. Hope this helped

The answer to this is A: Nuclear energey to thermal energy

What is the main function of the nervous system?
A. regulating sleep

B. preventing accidental poisoning

C. Controlling the body's actions and reactions

Answers

Answer:Controlling the body's action's and reactions.

Explanation:When you get nervous, your body reacts to it.

Answer:

C. Controlling the body's actions and reactions

Explanation:

the nervous system is the center of all mental activity including thought, learning, and memory.

Elements that have the same number of protons but a different number of neutrons in the nucleus are called

A periods.
B metalloids.
C groups.
D isotopes.​

Answers

D isotopes


They are atoms of an element with the normal number of protons and electrons but different number of protons and electrons
The answer is D Because isotopes have the same number of protons but different number of neutrons

What are the answers?​ plzz help

Answers

The picture it’s not clearly

What protein function listed here suggests that most enzymes are proteins?
A) provide structural support
B) transport substances inside the cell and between cells
C) communicate signals within the cell and between cells
D) speed up chemical reactions
E) control cell growth

Answers

the answer is D, speed up chemical reactions

The protein function listed here which suggests that most enzymes are proteins is that they speed up chemical reactions. That is option D.

Proteins are one of the classes of food that contains nitrogen in addition to carbon, hydrogen and oxygen.

Enzymes are those substances that helps in the breaking down of food substances into simple, soluble and diffusible substances before they can be absorbed into the body. It speeds up chemical reactions in the body by lowering the activation energy.

Enzymes are often referred to as proteins because proteins speeds up biological processes (chemical reactions) which is the same function performed by an enzyme in a living organism.

Learn more here:

https://brainly.com/question/11006427

Pls help I’m literally so confused

Answers

Answer:

IT IS D

Explanation:

i did this and it was d

Answer:

D

Explanation:

Please help thank you

Answers

I believe it’s the first, third and fourth ones. I might be wrong and I’m sorry if I am.

Describe fertilisation in terms of cellular and intracellular changes. I will be very happy if someone answer this I will give them brainly and likes

Answers

Answer:

during this process the nucleic of the male and female gametes are fused in order to create a zygote .known as fertilisation.Gametes contain half the number of chromosomes of all other cells in the organism .Meaning they are haploid .

Cells responsible for fertilisation:

fertilisation is the fusion of the nucleus of a male gamete with the nucleus of a female gamete ,producing a new cell called a zygote

hope it helps

What is heat?........

Answers

“Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system)”

Hi There ! Well let's comprehend the topic a bit better and let me walk you through...

Heat!We normally use heat to make food A cup of coffee in the morning or When we are doing our backyard hangouts we use heat to make Yummy steak!Heat isnt always just used to make food!We use heat to Warm up our houses ! Like a chimney we make heat to warm up our houses! Or some people use furnaces it also produces heat and warms up your room or house! Well now that we know what we use it for ....What is heat?

Of course Heat!

Heat is The energy that transfers to many different entities With a slight or major temperature difference!Please take in mind that heat only transfers to objects that are cooler than heat itself!Which means that it is energy that is transferred (or that flows ) from one object or system to another!

More info!

What are the 3 types of heat?Conduction, Convection, and Radiation.Heat can be measured in  Btu, calories or joules what we use to measure heat is hermometers and pyrometers!

Hope this helps!

                                                                                             -Tobie the Dog <3

To take in matter or energy
collection
liver
composition
absorption
Ok

Answers

Answer: absorption
Explanation: “The process or action by which one thing absorbs or is absorbed by another.”
In this case, matter and energy is absorbed.

what two types of cells contain chloroplast

Answers

Answer:

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis

Explanation:

A low pressure system moves across an area. What kind of weather change do you think you can you expect

Answers

A low pressure system would cause storms to develop- things like increasing wind speed, higher temperatures.

Start a discussion on Homeostasis. List facts and opinions, then compare and contrast.

Answers

Answer:

- Homeostasis is the ability of living systems to maintain a steady and uniform internal environment to allow the normal functioning of the systems.

- It is the tendency to achieve equilibrium against various natural and environmental factors.

- Homeostasis results in a dynamic equilibrium, where continuous changes keep on taking place, and yet steady conditions are maintained.

- Homeostasis is mainly involved in managing various internal variables of the living system like body temperature, pH of various fluids, the concentration of different ions, and the body sugar level.

- A number of regulatory mechanisms are employed to resist changes in the body against environmental and bodily factors.

- Homeostasis can be maintained by separate organs or by the entire body at once.

Maintaining homeostasis/Homeostasis Mechanisms

Homeostasis is maintained by a complex system that consists of individual units working in a particular sequence to balance a given variable. All homeostasis mechanisms consist of four separate units, which are:

1. Stimulus

The stimulus is something that results in changes within the system involving the variable.

The stimulus represents that the variable has moved away from its normal range, initiating the process of homeostasis.

One example of this is the increased temperature of the body above 37°C due to various causes. The increased temperature indicates that the temperature of the body has gone higher than its higher range.

2. Sensor/ Receptor

The sensor or receptor is the sensing unit of homeostasis, where it monitors and responds to the changes in the body.

The changes in the system are realized by the sensor, which then sends the information to the control unit.

The nerve cells and receptors like thermoreceptors and mechanoreceptors are examples of sensor/ receptors.

3. Control unit

Once the information is sent to the control unit, it tallies the changed value to its normal value.

If the value is different from the normal value, the control center activates the effectors against the stimulus.

The thermoregulatory unit in the hypothalamus of the brain that controls the temperature of the body is an example of the control unit.

4. Effector

Effectors can be muscles, organs, glands, or other similar structures that are activated as a result of the signal from the control unit.

An effector is a target which is acted upon by the control unit to bring the value of variable back to normal.

The effector essentially counteracts the stimulus to nullify its effect.

In the case of thermoregulation, the sweat glands are effectors that are acted upon by the thermoregulatory unit to produce sweat so as to bring the value of body temperature back to its normal value.

PLEASE HELP, WILL MARK BRAINLEST

Katie designed an experiment using a paint roller pan, sand, and water. The steps of the experiment are listed below.

Put 3 inches of moist sand on a paint roller pan.
Make a beach by scooping the sand towards the higher portion of the pan.
Pour water into the deeper end of the pan.
Tap on the water gently for 2 minutes to create waves.
Observe how the sand is displaced by the waves.
Katie’s experiment most likely represents the interactions between the
ocean and geosphere
geosphere and biosphere
atmosphere and biosphere
cryosphere and ocean

Answers

ocean and geosphere

Define the following terms
=>Cell
=>Mitochondria
=>Nucleus
Thank U ​

Answers

Answer:

the cell is the smallest living unit of life

the mitochondria is the organelle that aids in the produ ruin of ATP through aerobic respiration

the nucleus is the membrane bound organelle that's found in eukaryotic cells

thank u is from Thank u Next by miss Ari

Explanation:

=>Cell: cell is defined as basic,structural and functional unit of life.

=>Mitochondria : mitochondria is power house of plant cell.

=>Nucleus: nucleus is a part of cell responsible for cell division and for reproduction.

Other Questions
Help pleaseI will give a brainliest What is the temperature of the Sun's middle most layer the chromosphere ? One theory of early life on Earth states that the first life forms did not use oxygen for respiration and were unable to make their own food. Based on this theory, which types of organisms were most likely present?aerobic, autotrophic bacteria aerobic, heterotrophic bacteriaanaerobic, autotrophic bacteriaanaerobic, heterotrophic bacteria Think about convincing someone to donate blood to patients. Try writing three different analogies for that. Let's start by writing a generalization together; then, just try out a few different analogies from the generalization. Don't worry whether they all work, but be ready to analyze WHY they do or don't. Describe how the distributive property can be used when doing this calculation In Triangle EFG, the measure of angle G=90, the measure of angle E=77, and GE = 8 feet. Find thelength of EF to the nearest tenth of a foot. If you use a lever to lift a boulder 0.25m, while applying 350 N on the lever which moves 1.5 m down on your side. What is the weight of the boulder? (F1d1 = F2d2) 87.5 N 131 N 525 N 2100 N What is the minimum time that a warm up should last? . 5 minutes B. 10 minutes C. 15 minutes D. 30 minutes Identify a transformation of the function (x) = x^2 by observing the equation of the function g(x) = (x 1)^2 Which sentence best completes this diagram? A. Seminoles decide to accept the law without a fight. B. Seminoles take up arms to fight for their homes. C. Seminoles fight the law in the Supreme Court. D. Seminoles win a war against the U.S. military. Help plssssss........ please help!!!! giving brainlist Why might it be a good idea to support a natural monopoly Use the Distributive Property toREWRITE 2/3(x - 9) Which of the following is not aneconomic effect resulting from the inventionA.) More jobs were available in cities and areas where there were factories.of steam-powered machinery?B.) The poor were able to find work.C.) The owners and white -collar workers of the factories prospered.D.) There was an increase in pollution. in The third musketeer on this excursion bought an iWatch for $220, that was originally $250. What was the percent discount on his watch? Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!! Please help giving brainliest!!! A plastic bag containing 2.2 L of gas at1.0 atm pressure is cooled from 30C to0 C. What will be the volume of the gas? The graphic represents the Milky Way galaxy. Which label best represents the location of our solar system within the milky way galaxy? A B C D