Are the answers correct? Unit 3 Populations x Take Test Week Five Qui x f eBook

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Are the answers correct?

Unit 3 Populations x Take Test Week Five Qui x f eBook Renta x XC Home Chegg com x 5278 course id Secure https:// a/webapps/a t/take/launch jsp?cou 851947 1&conte; d- 5985330 1&step; null portal utoro E Apps C Chemist Toronto Wildlife Plan Top 15 Best A M Qualify for EP Certifice D Q Ch 3 The Biosphere F Q bi 185 evolution Flas Q Evo Biology Midterm Aniqa LiyaActivity Up o Question Completion Status: 1 points QUESTION 1 Saved Population density is defined as O a The number of individuals in a population D. The number of individuals of one species found in a given area O The geographic area over which a species is found d The number of individuals per unit area in a population 1 points Saved QUESTION 2 What is the difference between population distribution and population dispersion? O Population distribution describes how populations of a species are spatially arranged and population dispersion describes how individuals within a population are spatially arranged Population distribution refers to how individuals are arran within a population and population dispersion refers to where populations are arranged within the ged geographic area O Population distribution refers to how individuals are arranged within an area and population dispersion refers to the movement of individuals between populations There is no difference between these two terms QUESTION 3 1 points Scientists can estimate population size in a number of ways. In area -based counts, you would count the number of individuals in a quadrat, in distance methods you would use a point or line count, and in mark -recapture studies, you would tag some of the Rangtel Wifi 12 Click Save and Submit to save and submit. Click SaveAllAnswers to save al answers. nternet access 9:03 AM O Type here to search 5/31/2017

Explanation / Answer

Question 1:

Population density is the most important statistics that scientists use to describe and understand populations and the population size. Population density is defined as the number of individuals per unit area in a population.

Hence, the correct option is (D).

Question 2:

The difference between population distribution and population dispersion are population distribution describes how population of a species are spatially arranged and population dispersion describes how individuals in a population are spatially arranged.

Distribution patterns in species can change seasonally based on the resources availability and the pattern of distribution is not same for each species. Dispersal in species usually occurs at the time of reproduction where traslocation occurs through people, water, animals , wind .

Hence, the correct option is (A).

Question 3:

Scientists can estimate populatuon size in a number of ways using

*Transects methd

*Points count method

*Quadrat/plot sampling method

*Capture mark recapture method

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