1) The biological species concept based on: A) differences among populations. B) : 1380852

1) The biological species concept based on:
A) differences among populations.
B) : 1380852.


1) The biological species concept is based on:

A) differences among populations.

B) geographic isolation.

C) reproductive isolation.

D) DNA sequences.


2) The biological species concept cannot be applied to bacteria because:

A) their DNA is too similar.

B) their features are too small to be able to distinguish one kind from another.

C) they do not reproduce sexually.

D) they never exchange genes that would allow for speciation.


3) Which of these definitions of species most closely fits the biological species concept?

A) For asexually reproducing organisms, members of the same species are based on DNA and RNA base sequence analysis.

B) Members of the same species look almost exactly alike.

C) Members of the same species are all morphologically similar.

D) Members of the same species can mate and produce fertile offspring.


4) Interbreeding two different species of lovebirds produces offspring unable to build a nest after they mature because they lack the innate knowledge needed to carry the nesting materials. The hybrid offspring do not reproduce, and this limits genetic mixing of the two species. This is an example of:

A) sympatric speciation.

B) gametic inviability.

C) behavioral isolation.

D) hybrid infertility.


5) A population of mountain-dwelling salamanders migrates and splits into two populations separated by a valley they can not cross. The speciation process that may occur is:

A) allopatric.

B) temporal.

C) behavioral.

D) sympatric.

6) A population becomes isolated from other populations of the same species, and then genetic divergence occurs that prevents them from breeding with other populations. What has happened?

A) speciation

B) formation of genetic drifts

C) directional selection

D) mechanical incompatibility


7) Two different species of pines release their pollen at different times. This is an example of:

A) behavioral isolation.

B) geographic isolation.

C) mechanical isolation.

D) temporal isolation.


8) Which of these is not gametic isolation?

A) Female stigma destroys germinating pollen grain.

B) Lily sperm cannot fertilize tulip eggs.

C) Pollen grain does not germinate on stigma (female structure).

D) Male and female sex organs do not fit together.


9) The Great Dane and Chihuahua are both domestic dogs, the same species. However, mating between them is limited by:

A) behavioral isolation.

B) heterozygote disadvantage.

C) mechanical incompatibility.

D) hybrid infertility.


10) The many species of tree frogs that inhabit forests in the eastern United States maintain their genetic isolation from other species by several mechanisms, including “singing” slightly different songs. Which type of isolating mechanism does this represent?

A) temporal isolation

B) behavioral isolation

C) ecological isolation

D) mechanical isolation





1) The biological species concept based on:
A) differences among populations.
B) : 1380852

Get a Quick Quote

Approximately 250 words
Total price (USD) $: 10.99

Let us do the hard and easy stuff in nursing for you

Find an experts in Nursing Papers and kickstart your grades today with NursingPapersLib.com

Best nursing assignment writers

It is easy to promise the availability of help with nursing assignments but without the best nursing assignment writers in the industry, such promises can turn out to be hot air. Our expert nursing writing services feature seasoned professionals who have been providing nursing writing help and consultation services for a long time. Irrespective of the year of study or practice students are involved in, the best nursing assignment writers know the nuances of nursing student’s needs. There is no better way to assure you of the best nursing writing services than providing nursing writing help from peers who are ahead of you and have only the best interests at heart. Only the best nursing assignment writers will handle your request for the best nursing writing service because your communication can get through to them. Knowing the potential nursing writing help that you seek from the way you frame your request is the hallmark of a writer who provides expert nursing writing services. This is because, with their knowledge, there is likely less room for misunderstood requests when you are seeking the best nursing writing service you need.

How it Works

Place an Order

Provide your contact information, select an order type, and describe your requirements. This isn’t going to take long!

Image showing step 1 of making an order
Image showing how to make payment for your order

Select an Appropriate Writer

We’ll match your specifications with our available authors after we have all of the relevant information concerning your order.

Image showing how to download your completed results

Enjoy the End Product

One of our specialists will fulfill your purchase according to your specifications so that you are happy with the end result.

Why Choose us?

Free Revisions

We understand that not always out tutors could catch all details required which arises a s a result of miscommunication or inadequate information provided. However, we are always eager to provide you with free revisions till we get it right with your Nursing Papers.

Quality Non-plagiarized Nursing Papers

Our Professional Team of Nursing Writers always adhere to quality standards and plagiarism policy. Furthermore, we employ Quality Control Tools to ensure you get Custom Written Nursing Paper. Every paper is reviewed by an independent editor for syntax errors before submission

Professional Nursing Writers

At NursingPapersLib.com, we specialize in Nursing Homework Help Services only. Thus, this allows us to cater to our nursing students and get high qualified nursing tutors who will deliver exceptional results in nursing papers

Flexible Pricing

We always endear to provide best prices that matches our quality and your budget. This is why we provide a pricing mechanism based off several factors such as length, level of education and type of assignment. our pricing are highly competitive across the industry standard prices.