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Yuri [45]
3 years ago
13

In a population of 1000 individuals, 200 new individuals were born and 100 individuals died over the course of 1 year. Which equ

ation shows how to calculate the population growth rate of this population?
A. 0.10 × 0.20 = 0.02
B. 0.10 – 0.20 = –0.10
C. 0.20 – 0.10 = 0.10
D. 0.20 + 0.10 = 0.30
Biology
2 answers:
BigorU [14]3 years ago
6 0

Answer:

C

Explanation:

0.20-0.10=0.10

because the population was decreased

Cloud [144]3 years ago
4 0

Answer:

Option C, 0.20 – 0.10 = 0.10

Explanation:

Total number of births taking place in an year is equal to 200.

Number of births per person is equal to

\frac{200}{1000} = 0.2

Total number of deaths happening in an year is equal to 100

Number of deaths per person is equal to

\frac{100}{1000} = 0.1

Net growth in population per person

Total number of births per person - total number of deaths per person

Substituting the given values in above equation, we get -

0.20 -0.10 = 0.10

Hence, option C is correct

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Cross pollination is the transfer of pollen of different species to stigma of different species of plants.

Cross pollination results in healthy, viable and diverse plants.

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Explanation:

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The importance of cross pollination is that it creates diversity in the plant species since the traits having different alleles are combined to form the progeny plant. The offspring are healthier and high quality seeds are found.

Mendel observed that traits are either dominant or recessive in general.  It was observed that when homozygous parents were crossed, the progeny in F1 generation always had dominant trait. The recessive trait only appeared when F1 generation offspring were self pollinate.

Blended traits or incomplete dominance appear when alleles get blended and exhibit the traits in phenotype. The phenotype appeared will not be matching with either parents.

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