Top Posters
Since Sunday
29
27
s
14
12
C
9
9
M
7
A
5
3
2
2
New Topic  
fosmanali01 fosmanali01
wrote...
Posts: 78
8 years ago Edited: 8 years ago, fosmanali01
1- Suppose that sample of beef broth initially contains 16 bacterial cells. After 4.0 h, there are 1.6 x 106 bacterial cells in the sample. Calculate the growth rate of the bacterial population for the given time interval.
(Record your answer in scientific notation:  x  X  10n )

2- The Alberta greater sage grouse population was about 4375 in 1970. By 2002, the population was estimated to be only about 350 birds. Calculate the growth rate for the population from 1970 to 2002.

3- Between 1996 and 2001, Cochrane Alberta was the fastest growing municipality in Canada, with a per capita growth rate of 0.589. There were about 7424 people living in Cochrane in 1996. How many people lived there in 2001?

4- The experimentally re-introduced grey wolf population of Idaho was 310 at the beginning of 2004. Over the year, 112 pups were born and 49 individuals died or were removed from the study area. Calculate the per capita growth rate of this grey wolf population during the study period.
Post Merge: 8 years ago

Never mind. Sorry
Read 8049 times
60 Replies
Replies
wrote...
8 years ago
No problem,  lol
wrote...
Educator
8 years ago
1- Suppose that sample of beef broth initially contains 16 bacterial cells. After 4.0 h, there are 1.6 x 106 bacterial cells in the sample. Calculate the growth rate of the bacterial population for the given time interval.
(Record your answer in scientific notation:  x  X  10n )

2- The Alberta greater sage grouse population was about 4375 in 1970. By 2002, the population was estimated to be only about 350 birds. Calculate the growth rate for the population from 1970 to 2002.

3- Between 1996 and 2001, Cochrane Alberta was the fastest growing municipality in Canada, with a per capita growth rate of 0.589. There were about 7424 people living in Cochrane in 1996. How many people lived there in 2001?

4- The experimentally re-introduced grey wolf population of Idaho was 310 at the beginning of 2004. Over the year, 112 pups were born and 49 individuals died or were removed from the study area. Calculate the per capita growth rate of this grey wolf population during the study period.
Post Merge: 8 years ago

Never mind. Sorry

Did you figure them out?
hellatonutella,  Drogers,  Rahbot Gebray
wrote...
8 years ago
I did, but I don't know if they are correct?
Amina Hassan
wrote...
Educator
8 years ago
I did, but I don't know if they are correct?

Post them, I'll take a look at it.
Answer accepted by topic starter
fosmanali01fosmanali01
wrote...
Posts: 78
8 years ago
Sign in or Sign up in seconds to unlock everything for free
1- Suppose that sample of beef broth initially contains 16 bacterial cells. After 4.0 h, there are 1.6 x 106 bacterial cells in the sample. Calculate the growth rate of the bacterial population for the given time interval.
(Record your answer in scientific notation:  x  X  10n )

gr = (delta N)/ (delta t)

(1.6 x 10^6) - 16 = 1599984

(1599984 bacterial cells)/(4 hours) = 399996 bacterial cells/hour

in other words, the population increased at a rate of 399996 bacterial cells per year.


2- The Alberta greater sage grouse population was about 4375 in 1970. By 2002, the population was estimated to be only about 350 birds. Calculate the growth rate for the population from 1970 to 2002.

gr = (delta N)/ (delta t)

350 - 4375 = -4025

-4025 birds/32 years = -125.78 birds / year

in other words, the population decreased at a rate of about 126 birds per year


3- Between 1996 and 2001, Cochrane Alberta was the fastest growing municipality in Canada, with a per capita growth rate of 0.589. There were about 7424 people living in Cochrane in 1996. How many people lived there in 2001?
cgr = (delta N)/ N

0.589 = (delta N) / 7424

delta N = (0.589)(7424)

= 4373

4373  + 7424 = 11797


4- The experimentally re-introduced grey wolf population of Idaho was 310 at the beginning of 2004. Over the year, 112 pups were born and 49 individuals died or were removed from the study area. Calculate the per capita growth rate of this grey wolf population during the study period.

(b + i) - (d + e)
(112) - (49) = 63

cgr = delta N / N

= 63/ 310

cgr = 0.20




Now, I'm 100% sure they are correct. Hope this will help others. Slight Smile
This verified answer contains over 310 words.
kelseyt1,  padre,  Jeankk1,  bio_man,  Shotgun16,  jazzyspazzy,  klassen213,  Farheen98,  kvfdk66,  akel4584,  Staticbull,  Roxstar1,  romree,  zace,  Suzie Elhalabi,  Mya Cunningham,  Aayah Jomha,  Ness Eslava

Related Topics

wrote...
8 years ago
I was looking for this, thank you!! (:
wrote...
A year ago
thanks
wrote...
A year ago
thanks
wrote...
A year ago
Thanks!
wrote...
A year ago
thanks
wrote...
A year ago
thank you
wrote...
A year ago
Thanks
wrote...
A year ago
Thank you
  New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  155 People Browsing
 370 Signed Up Today
Related Images
 2142
 153
 191