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sveticcg [70]
3 years ago
9

HELPPPP ASAP GETS BRAINLIESTT AND 30 POINTSSS

Biology
2 answers:
anygoal [31]3 years ago
5 0
Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
xeze [42]3 years ago
5 0

Answer:

the population will not evolve and could be wiped out easily by stuff like diseases

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What biotic and abiotic accounted for the present distribution of oil worldwide
Fantom [35]

Answer:

i dont understand the question

Explanation:

7 0
3 years ago
A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
Một phân tử ADN có cấu trúc xoắn kép, giả sử phân tử ADN này
Veseljchak [2.6K]

Answer:

umm I can't understand this I'm very very sorry but please put me on the brainliest

5 0
3 years ago
Why are dead or weakened viruses used instead of normal viruses to create a vaccine?
vodomira [7]
I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!
5 0
3 years ago
Read 2 more answers
Which words can also be used to describe primary<br> consumers?
matrenka [14]

Answer:

herbivores (plant-eaters)

Explanation:

They eat primary foods like plants

4 0
3 years ago
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