1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liubo4ka [24]
3 years ago
7

Consider the following hypothetical population and compute the statistical measures below: #births = 50,000; #deaths = 10,000; #

immigrants = 5,000; #emigrants = 20,000; mid-year population = 1,000,000. Show formulas and all relevant work.
BR =
DR =
APGR =
DT =
Adjusted (True) Growth Rate =
Adjusted (True) Doubling Time =
Biology
1 answer:
777dan777 [17]3 years ago
5 0

Answer:

The birth rate refers to an average number of births in one year per thousand individuals in the population at mid-year.  

BR = (total birth in an annum / total population in mid year) * 1000

BR = (50000 / 1000000) * 1000 = 50

Death rate refers to an average number of death in an annum per thousand individuals in a population at mid year. Thus,  

DR = (total death / total population in mid year) * 1000

DR = (10000 / 1000000) * 1000 = 10

Annual population growth rate or APGR is calculated as:  

APGR = (Birth rate - Death rate) / Death rate

APGR = (50 - 10) / 10 = 4.0 %

Doubling time is the whole sum time needed for a population to get double in size. It is calculated as DT = ln (2) / growth rate

70 / 4.0 = 17.5 years

Thus, population will get double in 17.5 years.  

Adjusted (true) growth rate is equal to APGR + (NMR / Death rate)

And NMR = [(immigrants -emigrants) / total population] * 1000

NMR = [(5000 - 20000) / 1000000] * 1000 = -15

Thus, Adjusted (True) growth rate = 4.0 + (-15 /10) = -6%

The adjusted (true) doubling time = ln (2) / Adjusted growth rate  

= 70 / -6 = -11.66

This negative sign shows that it will never get double in such situation.  

You might be interested in
Cuántas cifras significativas tiene la siguiente cifra 9000?
xxMikexx [17]
<h2>Answer: Solo tiene 1</h2>

Explanation:

5 0
3 years ago
Which best describes reproduction?
Burka [1]

Answer:

A sexual reproduction produces offspring that are identical to the parent. Sexual reproduction allows for diploid gametes to combine to increase genetic variation.

4 0
3 years ago
Label the drawing to the right
larisa86 [58]

Answer:

The three processes from left to right are:

<u>Replication</u>   DNA  <u>Trancription</u>  RNA  <u>Translation</u> Protein

Explanation:

The process in question in the diagram is called the central dogma of life which describes the flow of genetic information from DNA to RNA to Protein. The three processes involved are:

  1. DNA Replication
  2. Transcription
  3. Translation

DNA Replication:

DNA replication is the process by which DNA makes a copy of itself. Replication of DNA is semi-conservative. this means that each new helix is a combination of an old (parent) strands and a new (daughter strand). The parental strand is used as a template to generate a complementary daughter strand.

Transcription:

Transcription is the formation of an RNA transcript of the DNA template. This process yields a mRNA that is further used as a code to manufacture proteins in the process of translation.

Translation:

Translation decodes the mRNA formed in transcription to generate proteins with specific amino acid sequence.  

7 0
3 years ago
What is a phenotype?
Papessa [141]

Answer:

a. the result of an individual's genetic constitution

Explanation:

Phenotype is the morphological expression of genotype. The genetic constituent of an individual is known as genotype. Genotype determines the genetic traits and imparts specific features of the organisms which constitute the phenotype of the organism.

The phenotype of the organisms depends on the type of the alleles of the genes present in the genome of the organisms.

For example, a human with genotype "ii" has blood type "O". Here, "ii" is the genotype that is responsible for phenotype "O blood type".

On the other hand, a human with genotype "IAIA" has blood type "A". Here. "blood type A" is the phenotype.

3 0
3 years ago
How do living things use each type of nucleic acid
Anton [14]
Genetic information.The main job of DNA is to carry the code for making protein.A gene is a stretch of DNA that can be read by proteins called ribosomes, and copied I to type of nucleic acid called massenger RNA.
7 0
3 years ago
Other questions:
  • This is the wave-like motion of muscular contractions that propels food thoughout the digestive tract. metabolism peristalsis di
    5·1 answer
  • Which like forms would have been among the first organisms on earth
    7·1 answer
  • Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles. True or false?
    7·1 answer
  • Indicate the correct designation of the paired sex chromosomes.
    11·2 answers
  • What kind of physical property is being shown when You put water, food coloring, and oil together?
    14·1 answer
  • The table shows the percentage of different colors of rats in a population that survive to reproduce.
    8·2 answers
  • Factorise completely pq - q?​
    11·1 answer
  • An energy pyramid is represented below. The energy for use by
    5·1 answer
  • Someone plz help me :(
    12·2 answers
  • Definition of evolution
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!