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Anuta_ua [19.1K]
3 years ago
9

Forest fires decimate the habitat of a species of butterfly. Most butterflies were orange with black spots, while a small percen

tage were orange with white spots. Many decades after the fire, the vast majority of the new generations were orange with white spots. What does this scenario illustrate?
A. gene flow
B. genetic drift
C. carrying capacity
D. gene pool​
Biology
1 answer:
zvonat [6]3 years ago
3 0
The answer is B. genetic drift
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A plant population produces many seeds. that if a population of plants is currently 30 individuals, and rmax= 12 plants/month, t
LiRa [457]

Answer:

\frac{dN}{dt} = 14130

Explanation:

Logistic growth is a measure of continuous growth of a population of individuals in such an environment where the resources are limited. Such type of growth pattern has a characteristic growth curve which is S-shaped or sigmoidal.

The equation for logistic growth is as follows -

Change in population size = \frac {dN}{dt} = rN(K- \frac {N}{K})

Where,

N = size of population

r = intrinsic rate of increase

K = carrying capacity

The values of r, N and K are given in the question as 12, 30 and 40 respectively.

So,

\frac{dN}{dt} = 12 \times 30(40 - \frac{30}{40}) = 14130

5 0
2 years ago
In pea plants, flowers are either white or purple; the purple color is produced by pigments called anthocyanins. The production
Hoochie [10]

Answer:

7/16

Explanation:

<em>The proportion of the offspring from the cross that will have white flowers is 7/16.</em>

The presence of anthocyanin which determines purple coloration is conditioned by the C_ and P_ alleles. It means that the absence of one or both of C and P will result in white flowers.

Two plants, each with CcPp are crossed:

CcPp   x   CcPp

Offpring

1 CCPP - purple

2 CCPp - purple

2 CcPP - purple

4 CcPp - purple

2 Ccpp - white

1 CCpp - white

1 ccPP -  white

2 ccPp - white

1 ccpp -  white

Proportion of offspring with white flowers = 7/16

Proportion of offspring with purple flower = 9/16

<em>See the attached image for the Punnet's square analysis of the cross.</em>

6 0
3 years ago
What are the negative effects of this destruction on the global environment as well as on the local environment?
MA_775_DIABLO [31]

Answer:

The negative effects of the destruction on the global environment as well as on the local environment are the following :

1) If forests are destroyed for making commercial area, the habitat of animals are also destroyed.

2) Forest helps in the cleaning of environment by consuming carbondioxide and releasing oxygen. If destruction of forest occurs, the environment remains polluted.

4 0
3 years ago
Plssss help with #10 &amp; 11
balu736 [363]

Answer:

10 B and 11 C thats what I got

7 0
3 years ago
Read 2 more answers
What fruit type is a strawberry ?
svetlana [45]

Answer:

Strawberries and raspberries aren't really berries in the botanical sense. They are derived from a single flower with more than one ovary, making them an aggregate fruit. True berries are simple fruits stemming from one flower with one ovary and typically have several seeds.

5 0
3 years ago
Read 2 more answers
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