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ZanzabumX [31]
4 years ago
5

10 points

Biology
2 answers:
lisov135 [29]4 years ago
7 0

Answer:

the answer is d because plants give oxygen and with out plats only carbon dioxide would be in the air

sesenic [268]4 years ago
3 0
The answer is D. the decrease in the numbers of forest
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Five different species of warblers, seed-eating birds, live in the same species of conifer trees. All of the birds migrate to co
sashaice [31]

Answer:

both c and d are pretty accurate, but i dont have very much knowledge on warblers specifically. but those 2 answers would be the most common for such a case

Explanation:

5 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
A. 25%<br> B. 50%<br> C. 75%<br> D. 100%
zmey [24]

Answer:

A

Explanation:

Because there 4squares and theres 1 recessive, recessive are represented with lowercase

5 0
3 years ago
The current population of a threatened animal species is 1.6 million, but it is declining with a half-life of 25 years. How many
kotykmax [81]

The current population of a threatened animal species is 1.6 million, but it is declining with a half-life of 25 years. How many animals will be left in 35 years<u> The decay law i</u>

<u>p(t) = 1,700,000 (1/2)t/25</u>

<u>where t is in years and p(t) is the population at time t.  Plug in 40 and 55 for t.</u>

<h3>What is threatened animal?</h3>

Any species (including those of animals, plants, and fungi) that is likely to become endangered in the near future is considered to be a threatened species. The population dynamics measure of critical depensation, a calculation of biomass related to population growth rate, is occasionally used to identify threatened species. This quantitative indicator is one way to gauge how endangered an area is. When discussing IUCN categories, the terms threatened and vulnerable may be used interchangeably; however, threatened generally refers to the three categories (critically endangered, endangered, and vulnerable), whereas vulnerable generally refers to the category that is least at risk among the three. However, since all threatened species are vulnerable species, they can usually be used interchangeably.

To learn more about threatened animal from the given link:

brainly.com/question/15576147

#SPJ4

8 0
1 year ago
What is a limiting factor?
Fittoniya [83]

Answer:

A limiting factor is anything in an environment/ecosystem that limits a population's size. They can be anything from the amount of available food, shelter, and competition.

4 0
3 years ago
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